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20190232 Flat Rock Parking Centre Revised Plans The LA GROUP Landscape Architecture&Engineering P.C_ People.Purpose.Place. 40 Long Alley Saratoga Springs NY 12866 p:518-587-8100 518-587-0180 www.thelagroup.conn LETTER OF TRANSMITTAL TO: Saratoga Springs Planning Office DATE: 8/2/2019 JOB NO.: 2018127 ATTENTION: Susan Barden RE: Saratoga Springs City Center Parking Garage WE ARE SENDING YOU ■ Attached ❑ Under separate cover via Hand Deliver the following items ❑ Shop drawings ❑ Prints ❑ Plans ❑ Samples ❑ Specifications ❑ Copy of letter ❑ Change order ❑ COPIES DATE NO. DESCRIPTION 3 Full size site drawing set without detail sheets 7 11 x 17 site drawing set without detail sheets 2 Stormwater Pollution Prevention Plan THESE ARE TRANSMITTED as checked below: ❑ For approval ❑ Approved as submitted ❑ Resubmit copies for approval ❑ For your records ❑ Approved as noted ❑ Submit copies for distribution ■ As requested ❑ Return for corrections ❑ Return corrected prints ❑ For review and comments ❑ ❑ FOR BIDS DUE 20 ❑ PRINTS RETURNED AFTER LOAN TO US REMARKS: An email of the submission will be submitted as well. cc: SIGNED: If enclosures are not as noted,kindly notify us at once. m' o \ kg \ \,\ . , , \ \ CITY CENTER 1�\--- ��' Cc',',-,,,� V '� The LA GROUP PP /� �\ \ -0 1 Lnndacepe Architecture @Engineering P.C. \ --- _ 2( \� \--, 0 ' \ P Gs.Pwgom.PG.. a \ / `_�_yy N * \ _ ` 40 Long Alley g / - lir -�i\--- — z_ ___ - - -_ �' NY 12866 wwwtlt \ ' 1 N o - - - - - \ iieln9ropp.cam 5 t S .,,,==.8g Q a oga ew e � - , _��o _- - -- un„pmo=ed anent on o�adaron to ms / _ ��W - -S/ CIT - --s'-- `' document sa t of SecCon,�09 otthe II/'� New Vork Stat Ed 'oa Law. E W. u - T. LS -o \\ `N / /'-�--w� \ \ MAPLE AVENUE (9 the,Group 20, � ° ',__-----------S'''I i -_yy-�--W W W -W-- W � W ' W �,es W W W W---- _ `� -o"- o W - W \ _ iI ILIMITOFV/ORK Saratoga Springs /E ///W� saN LIMITOFW � _ Center �_____,/____,,,________:_ -_ - �` City V e 7- /____-,,--s: /___e 5 m" • - _ -_frej - ----- __ i522 BrgadPay / • _ ..___ Sarato a S rings,NY 12866 VENT -- --_- \ �--- EA P�" - _- __ _-_ - „1„,m-r.R0TECTION, ' _ - \ \ RUCTION - __ 0tAreStirOi AI ®ENTRAN P. STABILIZED CONST • CE TY z'c�rvv.OUTzas.oe - ., \ \ 1 INLET PROTECTI P. ON TY TVP. - r ---�/ \� \ INLET PROTECTION, - o -„ `�� I — - Wu I/�Nin --- _ __ PROTECT EXISTING VEGETATION /\ o—J1N 7 - 1 - cN-E•- r1�'-"7 1 --�_,--- _ �� __--- .ORINGEQNBTRUGTION - _ w • i. 7S 15 C t� '/---__ -_- _--.--------- --_ -------_ \ /SIII// _- -- a -,r_ __ - --"Q © \ 1---\ ®TYP.INLEI T PROTECTION, _ -- -- -_--__ ) ---_ ------ SILT FENCE ® �YP _ 1 4 , . I =t-\ / UZ NHOUSE CONSTRUCTION STAGING� __ ------- w _�O- Y. � 1: - -&STOCKPILE AREA,TYP. _-- - , ® �'_s Flat Rock I I H Parking Garage I...... - -------- 6 Sar --= I / Saratoga Springs,NY 7 2. .. ,..„....„, L.._ f -:I--- " ---_-- �!'■'m. INLET PROTECTI�ON,� --- -- ------ _ I ii CONCRETE WASHOUT,TYP. ST =-ST- --T - ST E!PROPERTY LINE --LS -=5 -1- LS _� T SILT FENCE,TYP.© 7 -T INLET PROTECTION.TYP."• J ��,.,�INLET PROTECTION TYP. Win, * i1 \''-= - ` "q_ ilke---------____7, _ W- _ W W VO-m� W �,e yy • __ ---- - ---- M •• LIMIT OF WORK -- ---------------_ , - . o-- w Illllllllllr _, 5 .� s -�� s ��• , _ --7._ s s s s s S SILT FENCE,TYP. -a11,'STABILIZED CONSTRUCTION 5� �� - __ ENTRANCE,TVP. • �INLEI PRWIECIIU,Ne. HIGH ROCK AVENUE _ _,- AI INLET PROTECTION.TYP. 0 5 S - 5 S S • S S -THRU SUMP 261.19 , -- T Des ect Na.: 201812, _-- S _ - Ign'. CMI o \\, __— MilE S n O-_ D awn: KMK Ch'k'd: NCR -_-- fffila� 0 0 0 � _ D- S S S I Date: 7/2/2019 Sale: 1"-2C' H SITE PREPARATION NOTES: LEGEND Rev DPscr,ptlorDd1P1 1 f'Le.N MODIFICATIONS i/19/2019 1. THE CONTRACTOR'S ATTENTION IS DIRECTED TO THE REQUIREMENT FOR PERMIT 5. ANY DEVIATIONS FROM OR CONSTRUCTION CONFLICTS WITH THE PROJECT SWPPP 12.ITIS THE CONTRACTOR'S RESPONSIBILITY TO CHECK THE SWPPP FOR WEEKLY 20 10 0 5 10 15 20 COVERAGE UNDER THE NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL SHALL BE IMMEDIATELY REPORTED TO THE OWNER'S REPRESENTATIVE.IF THE INSPECTION REPORTS,4ND IMMEDIATELY MAKE CORRECTIONS NOTED. .. PROPERTY LINE CONSERVATION(NYSDEC)STATE POLLUTANT DISCHARGE ELIMINATION SYSTEM'SPDES CONTRACTOR PROPOSES A REVISED STAGING,SEQUENCING AND/OR MOBILIZATION 13.APPLICABLE EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE MAINTAINED IN ====CONSTRUCTION LIMIT LINE GENERAL PERMIT FOR STORMWATER DISCHARGES FROM CONSTRUCTION ACTIVITY PLAN,A MODIFIED PLAN MUST BE SUBMITTED TO THE QUALIFIED INSPECTOR FOR Scale:1„_20• P-0-15-00'.THE STORMWATER POLLUTION PREVENTION PLAN(SWPPP)DEVELOPED APPROVAL PLACE UNTIL CONSTRUCTION IS COMPLETED ANDIOR THE AREA IS STABILIZED AND s. EXISTING MINOR CONTOUR FOR THIS PROJECT IS IN ACCORDANCE WITH THE REQUIREMENTS FOR COVERAGE APPROVED BY THE QUALIFIED INSPECTOR. 6. ANY CHANGES TO THE SWPPP PROPOSED BY THE CONTRACTOR MUST BE APPROVED BY EXISTING MAJOR CONTOUR UNDER THE GENERAL PERMIT FOR STORMWATER DISCHARGES FROM CONSTRUCTION 14.REFER TO THE PROJECT STORMWATER POLLUTION PREVENTION PLAN FOR ADDITIONAL sts THE QUALIFIED INSPECTOR AND INCORPORATED INTO THE SV'IPPP PRIOR TO - ACTIVITY REQUIREMENTS AND INFORMATION. IMPLEMENTATION. STOCKPILE&STAGING AREA 0 2. ALL CONSTRUCTION SHALL BE IN STRICT ACCORDANCE WITH THE STORMWATER 7, SOIL EROSION AND SEDIMENT CONTROL PRACTICES ON THIS PLAN SHALL BE I S ora,ving T. ,S� POLLUTION PREVENTION PLAN(SWPPP),AND GENERAL CONSTRUCTION SEQUENCING CONSTRUCTED AND MAINTAINED IN ACCORDANCE WITH'THE NYSDEC STANDARDS AND _ PLAN.PRIOR TO CONSTRUCTION.THE CONTRACTOR SHALL REVIEW THE PROJECT STABILIZED CONSTRUCTION ENTRANCE 5 SWPPP FOR SPECIFIC REQUIREMENTS REGARDING EROSION AND SEDIMENT CONTROL SPECIFICATIONS FOR EROSION AND SEDIMENT CONTROL',MOST RECENT VERSION,AND y AND STORMWATER MANAGEMENT.A COPY OF THE SWPPP MUST BE MAINTAINED ON THE THE CITY OF SARA,-SPRINGS REQUIREMENTS. Ark ti PROJECT SITE IN AN ACCESSIBLE LOCATION AT ALL TIMES DURING CONSTRUCTION. B. PRIOR TO ANYSITEWORK,STONE CONSTRUCTION ENTRANCES MUST BE INSTALLED IN -SF-SF- SILT FENCE Erosion&Sediment 3. PRIOR TO ANY SITEVJORK,ALL CONTRACTORS AND SUBCONTRACTORS RESPONSIBLE ACCORDANCE WITH THE SWPPP.PAVED AREAS WITHIN AND OUTSIDE THE LIMIT OF 0Control Plan _ FOR CONSTRUCTION,REPAIR AND MAINTENANCE OF ANY EROSION AND SEDIMENT WORK SHALL BE KEPT CLEAN AT ALL TIMES AND AT THE END OF EACH WORK DAY. 0 INLET PROTECTION NW CONTROL OR STCA71"0 ER DEVICES MUST SIGN/CERTIFY THE SWPPP AND IDENTIFY A B. EROSION CONTROL DEVICES SHALL BE REGULARLY INSPECTED AND MAINTAINED TO 'TRAINED CONTRACTOR'. ENSURE SATISFACTORY PERFORMANCE AND COMPLIANCE WITH THE SWPPP. 4. PRIOR TO BEGINNING EARTHWORK ACTIVITY,THE CONTRACTOR SHALL SUBMIT A 10.THE SITE SHALL AT ALL TIMES BE GRADED AND MAINTAINED SUCH THAT ALL o.,,,,,A, MOBILIZATION PLAN SHOWING PROPOSED STOCKPILE AND STAGING AREAS, STORMWATER RUNOFF IS DIVERTED TO SOIL EROSION AND SEDIMENT CONTROL 'LL HAL/ACCESS ROADS,FIELD OFFICES AND EQUIPMENT STORAGE AREAS,ANDA FACILITIES. I SCHEDULE DETAILING THE STAGING OF CONSTRUCTION TO THE QUALIFIED INSPECTOR 11.THE CONTRACTOR SHALL INITIATE TEMPORARY AND PERMANENT STABILIZATION L-01 iii (SWPPP INSPECTOR)AND OWNER'S REPRESENTATIVE FOR APPROVAL. MEASURES AS SOON AS PRACTICABLE IN ACCORDANCE N/ITH THE SWPPP. s 46\1_-- \\ RELOCATE&RELOCAsTTERUTsIN , ° \';)I T' \ '\ \ CITY CENTER _ \\ \ \ REMOVE 8,RELOCATEsgIFSTIIG, H I 1 04 '.\,,, t*AO 11'sCCERUsET1:D'KLISSiiNEk'IRRC ER FuE l;LEoLRTY: \ ,' s LA GROUP \ SAWCUT PAVEMENT ---- - 6,6 A ‘,C3,-,0\\ \ . \__°•/„ \ ''':\ '''-'s- '.941494,"rAWAIWAtrifferr- -- - - - - _7__ 2:' ---\-\ -'± % _la 40 Long Alley p.518-587-8100 Sarat.6 Sprmg6 f 518-587-0180 I _______As„, ,,, \ ,. °- Ar..',,,,t \ 1 ,Ari ZnALIM&R,RESET SIGN AS 'r• --,--0 u'r:°:55,:':esdiEE'''.°7:'F'''"'"th` Nor.jxE ___-- , ,,-----"-- •P _...100 -0• \ -14111r Av '1Z"LTsli)sKTMIIII-i-Ey',1"T 1 MAPLE AVENUE 'rr SAWCUT PAVEMENT 8, . 7 W PROTECT&MAINTAIN EXISTING ' -- ,---------- -FI-RE-r HYDRANT.' - 4 4 1-13.P.LE&FI.TuRE SNA/CUT PAVEMENT& W . A BENOVECURB----1' --4v MM MM ,x ,i,-..-----A- lt,_•:__,..#--'''-"'-'' __ -__-_-_-_ ----- Saratoga Springs NY 12866 POLES,EIXT_URESrTYP-: 00 0 ,:01,101,00 .,.. 010 7--. REmiZEVEVM - - I;AvEENAT7T7 I ''' 1 I 0„.- -4- iii_soie„...00•000,,":•00000:0000000°. .0•00,011.0010 ° . .,. „,, 01°4'' I I PROTECT&MAINTAIN --4 1°'1'6°a. ........„,,••••-EMO:,.,..1,,.EES,TYP, -..... 0. y; 0.000........11100. ' EXISTING GUIDE RAIL °-_____RE.,/,,T1y, i ;•0:00.. . .., ,,,, ,,,, ,0000f;`,0 'W" l...11 0144 ,,,014 , ;„ -- . .__. . _. . . . . _ ::,„„ ‘vj„ •_„.. 'r _if doal_ir 0, 1 '-'r'''''''. I X--''''''-;- ..".4'* --- - --''''''-'04" fr. 1 00_, ,',4_, „i0i.,„,.-.....0..,...w,' .0.0.-_,,,,,,,---•--,------!•,-.---:), ,,,---,---- 1 1 _ 1 --"' -- --' - ..,...0000000,0000,- "0--- %, doiii.,4,...--...,-,-...„--- .-• . . --• __._ __ -___________,- , r_rs PROTECT&MAINTAIN REMO,E-ASFHALT-PAVING.- 1 , --...4 1 TREE PROTECTION TERPRoTECTIoN TY.. op we. 0 ;070- pi,ritl _,EFs'AO_VE TREES,TYP FENCING I I SFA,WCU EMOVE CON,E Ot.te,„101 op.... ;'1....as':,_,,,,,,„ww•_,--ror-7,. ..._....07. _sr- _di...,_......" i„,,o0,•0111111.01_.„,,t,OrP-_,,,,,,_,0000•0_, ;g—X % ---. , ../ BOLLAFNMS(4)TO COO DINAT REMO 7k LE-OmF.R.ErkiE ; '',,4;00.17.0000::,;170.40,001.1.10°°0000.,,,40.2000...rilari000/...W000.010.040*.deMT0000/000°M0, ...... - s„..,..,4,1.. 1 REm&I CITYuOMFTA EFFEPTVi_0,-,,=;"'''`°4' ,,,,,,,. 1 ••••••,.....Y.....00.°J..0001'77 ••••••000:••••••000.' .00.0001:0••••00:•••••000. 10/11' ••••••••000:0;„'0'02,, ,, II , 1_I n 0";••••°'°%°:°°.' . ',,0 0 0 0 0 0.I.le- d 1 1 1 Ille;°°;s'.1_,2•1.°°° '.°°°°°°°°°°°°°°.";......°°°'..........°.......°.........11101.,•0°'.°.... .. _ '..' ...,'' i 1 R MOVE TREE TYPT .,.....,1011111111111° „ s..., REMOVE D,AIN 8,'SSOECd TED ill,.0.0,,,,,,,.0.•••••••;r:40•0,011.00,00011,001.0,0,„,,,011101,00000,0•001,0001. 010000,00-wi.,:„,10 ,eI .,,o„„„,g,0111,,ifrd:."Otlr00 ,d0A001.rO,„„40ILSOL00rlrtS. F04, L,7,,!i TaiPIIA;'71'.I=(-4.0•0t,A...0'7, '00'7is,a110100 ,./0000.00004101006›.,P000000301110'110 oro.0; ,, • NT.T P. ,C,,,,,c0010106,-/1..T.-, 01111 ....I-.0...-401.40,--, ...AO _, $0,1 _,......1 ....1. ,....-.001L.,...,.... .,1.....,O.1.1,.....,. .1.1...._... ...„,/,„..._.........,...,,,..1,,,.liroi,:,,, i ,,,-.0---.,:e)pw orPorroporooloroorAPPropOpi—oppoworpopmioi. i- li,, _6,100 ,04, 004,4•0=-004001.-00o0000' 0 00:,01,f;0. I,,,o : 0,00000,00. pioioio„„H000: ioiH•oohoelioi, ,,o,o,o,0o„ ...„,,,,,,e , ,,,,, „.„,i0,, ,,,,00 , Flat Rock ABANDON EXISTING INLET(NW, 1''' 000.0000000.0,010/10/0/111111 ..0.01. ii..0000.111, .,,igigogig•;°°I;00 .0°.11 01°(.,/: BRICK AND MORTAR PENETRATION d..0101. 00000, .000 °....' Parking Garage REMOVE TREE,TYR T. ..00,, , .D,,.,=e.,:,, ,-''., _,- • • 00 I ER\)1117IFFST'Fi'RFIREIEN°T Saratoga Springs,NY 0....... ==.io0o . #4;0°.'‘- ---....;;010 10.'01'....:0000..dr.").'..146110°.1.1.10.. -P"TEV rn'ZTAT •t:-. ..i. ,,,,,,,,,'"- --, 10,000.00 .°°°:00,0 .- 0 ,•••10.7,00.°A*0...00 .. .. .‘1 ,000.00,00 / / ......._. .41,44011.1..,--':-'.''' ...., REMO'E AND STOCKPILE 48 1 It ',Wf-611M00,0'.:410d01111°'-4- 6410.4140110e. I.00.4'!t&4141W''"I..10/4r•glitIS_AOrifibil-104P1M4'4W04,a10140,11.'''/%441,Wr401"tiri 'llirt...P1111' filIolGUR'PANKING SIGN ...JO'.00,..-- .... ../..." - ....., - 116................ ..-41,- ,Pri-INIP,Of.-amt.-4.1.-0,--orreOppr.o .- 4611p.., 1111.01.2 Mi.(' reri#111111111.MM :41.111M_MWOMIWILtitAMMWMIMOIn1001."7,01,,,,AlliMMEr4(00M „440W0.0111 - INMILEBISIMIOri I& '1/4.....,',11M11111111111110•01MMIEWIMIMMINMEENIMPVY qpriwgwasigmvppm____I ... , .. - s s s FVLO,Fill-rpF POLES 8, s sii A TREE PROTECTION REMOVE&S.10f;KEI,L5___, 0,0 • eV •:•, HIGH ROCK AVENUE '\ TREE PROTECTION LIGHT POLES& VMS,TYP s° VAIffE-ZIRVENT' KMI s S-- S S . s MI s 4rdim• s __-- 1,,, , , mom- s KeZ,,-s - -\ Project N. DesIgr, 201812, C. ' 1 SITE PREPARATION NOTES: PROTECTION NOTES: REMOVALS NOTES: LEGEND Rev Descr,ptlor Date 20 10 0 5 10 15 20 RANGE PRE-CONSTRUCTION MEETING 1. CONTRACTOR IS RESPONSIBLE FOR ANY DAMAGE INSIDE AND OUTSIDE THE LI.OF 1. UFTZERNMIvNEsgLIA:,c),PA=N;rgffTERmT0'1Z=I1F1=1LrIg=fp',70F, .,,,' 1' IA/FIITCHIROT1;VGNGEURN/II;TA/RNUEI=PGRTERN'IGAZE STI-OIAIii LE,VI%ALL AP PLICABLE P ERMIT WORK DUE TO THEIR CONTRACT OPERATIONS. . ... . .PROPERTY LINE ===.CONSTRUCTION LIMIT LINE ° CONDITIONS THE CONSTRUCTION PLANS AND GENERAL CONSTRUCTION SCHEDULE. SITE.ALL HANDLING OF MATERIALS TO BE REMOVED,RECYCLED LOR DISAPOSED OF MUST H A L LOC L COUNTY, i E'ER.-suRvEY"I.'uTILITY 2. II'''T=IsTQII=T'EljAAIJNYUSS'T''''IDNNRI=I'.SERVICE ALL E"ISTING"LITIES' BS,I,TC)EN,IESD'EIR'Alk_SA'NIFDEANYGOATIZI2NANPEPRL:Alf:=EIZ. ' N 2 THE CONTRACTOR'S ATTENTION IS DIRECTED TO THE Gs No --116---EXISTING MINOR CONTOUR '10 . 1" . 15661.1°,20 REMENT WORK SHALL COMMENCE II1 :714SuANNTGIL'?ICIF2::=72LSIIITE H"E l'EENHI2ENTIFIED''L'cATED' ' 12TNIAAT()=II'l-S,MF'Vg'N'EsSASR'ITc=FICACC%N.TRTAI-I'Lc)EE'''' I'D'IRELIr:AAST'EsT 2' 'FALAI4TIMknnCONTI=OGX=14A14FIBOENI;EArAVPIE5ID_ITCULUE4LUI=1DHInDIFSID'I. --61° EXISTING MINOR CONTOUR TECT i a AALCLTIEVrIff IRTENRTIrP=TTASNISIALNLOBEE ISNARNLDA TRATLCISR TD ANY EARTH DISTURBING =<ThlE°G,RU irPHMEENNITI=OuST,G\',DI F;PTRNO IrEITSYUZIOEO=TALSIE7 ER'RR° 5. i=DITAENmps,I=T,T il,==iv=VNTE.Rs'<rEsshIE'r\siLNI-APXREF uI-I-Y --VT--EXISTING STORM LINE s EXISTING SANITARY SEWER LINE Dr.v6.65,T. '3 ' TUTIIEENSTHGTCHNETI7EfPrEFSIVIni4[11TrCDCZPTAENIYLIA4NADDHINVSITAULrATSZCAIrE=MT DS 4' 7r.FE(2,7E'r,g4TEF-IRILNAGNA=BTE7TAE7D'ERN=AERETr),V„'ZFTOR2cE(24' 4. TREE SHRUB AND VEGETATION REMOVAL SHALL INCLUDE THE FkLING,CUTTING, Demolition& '' PROTECTED OR REMOVED.DO NO CLEARING WITHOUT A CLEAR UNDERSTANDING OF GRUBBING NUT(1,ENTIRE RON°SYSTEM AVE,,Z,,,,CuTs0DREY0(FIF-,SFT0E=ZAI- 6 EXISTING GAS LINE '-'"' EXISTING CONDITIONS TO BE PRESERVED. TTFHIEFIFSA EOT/UAIBSCiPSETF=STEElirLATNRVEEEn SUCH A WAY AS TO NOT DAMAGE ADJACENT E EXISTING UNDERGROUND ELECTRIC Removals Plan l'_, ' TT:s°,1s,l,Tir:,'AON)FT'ssED'VNEArTT=2-R7,1E7_27g(Fri EALIG=TV ITTION BUILDINGS OR OTHER TREES TO BE SAVED. --W--EXISTING UNDERGROUND WATER Ii PERIOD AND SHALL,AT A MINIMUM,INSTALL TREE PROTECTION FENCE IN ACCORDANCE 5. ?.?r,,,T.R,..S.N _Er._,.'n.S,T,_?.!<.,HEISaNEC.1nT-,Tni-,1:2_Efiroisr,,,, WITH PROJECT PLANS,DETAILS AND SPECIFICATIONS.VEHICLES SHALL NOT BE PARKED VIgs1,',ELUTrUr7rFLrEIN,LI1.°T7E7E-1:',NBLaN',,p'KaaDZ7Z.ZNER., SAN/CUT ASPHALT .'1.!1 \g/TIVINIFITI=IANTI EFT\LTSSHRAIIVV:rO'IRREEDSBILTNEriC\TTHRXETSSTB:BSEAXBIr REP REsENT'NE. 6. THE CONTRACTOR SHALL REVIEVV THE LOCATIONS OF THE TREE PROTECTION FENCING n2<xxxxxxx.REMOVE ITEM .A„„,,,,, rP,:7'54 FOR APPROVAL BY THE OWNER'S REPRESENTATIVE PRIOR TO INITIATION OF SITE WORK -x-x-x-x-CONSTRUCTION FENCE OPERATIONS. L-02 N\\\\\\\\\\\\N REMOVE CONCRETE PAVEMENT 10 7. AT ALL LOCATIONS WHERE EXISTING PAVEMENT ABUTS NEW CONST=s,HTIA-INEREEDoGoEs °A rF.OF'PI ER VEVNE g ZIT IMNUTTS1 IHNt1=IIALDS uATRTEBI NAglE_F\'EIS!'"°Cif A-6,66'4'4%REMOVE ASPHALT PAVEMENT \ \ t , . \ CITY CENTER The LA GROUP m \.....%\i„ ©HEATED CONCRETE SIDEWALK,TO CONNECT \ giaeering P.C. \ 0 TO ADJACENT HEATED SIDEWALK SYSTEM Landscape architecture @.En P.74.P.7.,PA,.. \ NA PEDESTRIAN CROSSWALK \ RELOCATED ® ' g Y P' 40 Lon Alle 518-587-8100 INSTALL STOCKPILED Sarato S s 518-587-0180 STOP'SIGN ga Pring RELOCATED "STOP"SIGN ' DROP CURB AT GARAGE ENTRANCE,TYP \ NY 12866 www.thalagroup.cam STRIAN© ® 1.--,.......pr I \„ \ / DROP CURB® lill PEDESTRIAN CROSSWALK 1.� ,TACTILE WARNING STRIP,TYP 4\GAS PIPE \ i�, / STREET SIGN L \I/C� m b_ U �� ® - - - - -- - - - - - \ Unau[horized alteration or addl[ion to[his - •I \\\\ do<ant isaviolationot Section9z0ofthc _ // New Vork Stata Educatioc Law. ©PEDESTRIAN DROP CURB,NP � NO PARKING TACTILE WARNINGArk ® ��PEDESTRIAN DROP CURB,TYP ANYTIME SIGN All, o the La Group zoiz 1. PAVEMENT KEY / STRIP,TYP.® INGLE WHITE PAVEMENT MAPLE AVENUE ® Prepa,edfot: STOP BAR MARKING LINE PER CITY OF Agin INSTALL STOCKPILEDNi-lf = ARITD°AVPRINGSqiiir Saratoga Springs ali DROP CURB NO PARKING "STOPSIGN R5' 'TICK''''' F rICKEr ISLAND I R10' STANDARDS R10'TYP � City Center ANYTIME SIGN CONCRETE CUR:a 11 TYP __-- 1 ..-- -,I L 08.0 PE!I RLARD WITH CHAIN --I '�®i®�� I O 29� POB 522 Broadway -----e, X ,100' - PVENUE ® �� P��ty'� __ _ • � r <` ® �� Saratoga Springs NY 12866 11.11111111111/4—MaillillenT,,,,1:41,M M. 2 .........._10,_=.:ir===,,:. ===mm===14 r - 2,010.101Wi ,r ALIGN WALINVAY ' @v @w @p Np l9p @uNI, , 1 o WITHSTAIRS bir , 1z1,1'.' i ti' A TACTILEyr,Fr NGe R50' Ea., iiii0 R5 _AB ' , TYPEDESTRIAN ® ®ROSSWALK;4hJ TION CURB -du __'� 1--- ,aiiii — CONCRETE STAIRS tai I MATCH NEW CURBING ` u haM/ AND HANDElAIL,SE i IIfY it EXISTING CURBING ll, STRUCTUR LPLA S / 7.50' II rdi"' ' -- -- -- -- -- SEE ARCHITECTURAL PLANS CONCRETE STAIRS ANDVI w .FOR PARKING SPACE LAYOUT HANDRAIL,SEE z IN GARAGE STRUCTURAL PLANS I> CONCRETE PAVEMENT Pi 1 9 N/I1*.;#1 TRANSITION CURB phi _ d $11d ! F-1 F] ® 0 CONCRETE CURB ALIGN WALKWAY j �I p p,p p, ,�'� I Q WITHSTAIRS I \' ALIGN WALKWAY -� 1© J I �11� "DO NOT ENTER"SIGN '�:IKE R`CK,TY"OF 4 ` _ WITH STRUCTURE �® o.F / '�I� I II BARRIER GATES EDGE ©BIKE RACK.TYP OF 4 BY OTHERS �{;�� MOUZON HOUSE • �� ASPHALT PAVEMENT pEDESTRIANA III� aF rlcKr=r lsLnN� CROSSWALK® 01.1 ®TRANSITION CURB •_ ®CONCRETE PAVEMENT6'1ALIGNWALEDGE �� 111111111111 / Nig Pr jecr rneWITH STRUCTURE ��` / :1111-V0 �_ ASPHALT PAVEMENT,TYP�ill:��® 12.5 n 12.5 Ir /' �� 4"WID WHITE STRIP MARKING, Flat Rock ep��I�JAMI. g..r //, //..,,j . 19� 4 WIDE WHITE BTRIP /� �I] /� s `.TJ`bc _�, �� ®TRANSITION CURB Parking Garage ■i�� ; -.�.-I,/_. 1111 -sem-_ ■ �I • I� -� l �� 1 ,�li® w ® Saratoga Springs,NY I ES RS � 1LUFII4 ��R60'�)IUP .iI Nruni� -1''P RS'TYPaR2 TYP®� ,PROPERTY LINE 1111 ... 1 ®®1111®®®R �1/� Aptua. TYP '• � a. __ _ L . 1111 TRANSITION CURB WARNING® ®TRANSITION CURB 4'-8"IN FORMATION KIOSK SIGN TACTILE PER CITY OF SARATOGA SPRINGS A/ARNING REIF sT,IP,TYP. HIGH ROCK AVENUE STANDARDS.DETAIL BY OTHERS. STRIPTYP® PROPOSED CONCRETE CURB TRANSITION CURB Prosect Na.: 201812, TO MATCH HEIGHT.EXISTING CONCRETE CURB TO REMAIN. PAVEMENT KEY Design: CMI n THRUS,,,L61.15 e Drawn: KIT Ch'k'd: MCR Date: ]/92019 Sale: 1"-2C' LAYOUT NOTES LEGEND R. Description Date Vill,„ 1 PLe.N MODIFIC4TIONS 7/19//019 1. ALL LINE AND GRADE INFORMATION SHALL BE LAID OUT BY A NEW YORK STATE 8.CONTRACTOR SHALL COORDINATE LOCATION OF ALL UTILITIES(LINES,DUCTS,CONDUITS . .--. .PROPERTY LINE 20 10 0 5 10 15 20 REGISTERED SURVEYOR ENGAGED BY THE CONTRACTOR. SLEEVES,FOOTINGS,ETC.)WITH LOCATIONS OF PROPOSED LANDSCAPE ELEMENTS1 . 1 (IA/ALLS,FENC,FOOTINGS,TREE ROOTBALLS PROPOSED LIGHTING OOTINS,ETC.). 1 CONCRETE PAVEMENT Scale:1"-20' ' 2. ALL NEW WORK SHALL BE STAKED OUT PRIOR TO CONSTRUCTION.THE OWNER'S CONTRACTOR SHALL REPORT ANY DISCREPANCIES TO OWNER'S REPRESENTATIVE PRIOR REPRESENTATIVE SHALL BE NOTIFIED OF ANY DISCREPANCIES.FIELD ADJUSTMENTS TO CONTINUING WORK. EXPANSION JOINT MUST BE APPROVED BY THE OWNER'S REPRESENTATIVE PRIOR TO CONSTRUCTION.''...-i 9. ALL EXISTING UTILITIES ARE SHON/N IN THEIR RELATIVE POSITION.CONTRACTOR IS 3. ALL LINES AND DIMENSIONS ARE PARALLEL OR PERPENDICULAR TO THE LINES FROM RESPONSIBLE FOR VERIFYING THE VERTICAL&HORIZONTAL POSITION OF EXISTING ASPHALT PAVEMENT Rh WHICH THEY ARE MEASURED UNLESS OTHERWISE NOTED. UTILITIES PRIOR TO CONSTRUCTION. 0ra,,m9 ria 4. DIMENSIONS TO CURBS ARE FROM FACE OR BOTTOM OF CURB TO FACE OR BOTTOM OF 10.ALL PROPOSED OR RELOCATED SIGNS WITHIN THE CITY RIGHT OF 4VAY WILL HAVE FINAL SEAT WALL�®'' Layout& CURB. LOCATION APPROVED BY THE DEPARTMENT OF PUBLIC SAFETY BEFORE INSTALLATION. Materials Plan 5. FIELD ADJUSTMENTS MUST BE APPROVED BY THE OWNER'S REPRESENTATIVE AND IF CONCRETE CURB NECESSARY APPROPRIATE MUNICIPAL OFICIALS. 6. ALL LAYOUTS FOR WALKS AND PATHS SHALL BE ADEQUATELY STAKED BY THE TRANSITION CURB CONTRACTOR AND APPROVED BV THE 0\VNER'S REPRESENTATIVE PRIOR TO CONSTRUCTION. U� gli DECORATIVE STREET LIGHT VI, orawinq Ivo. m-e 7. ALL PROPOSED WALKS,PAVEMENTS,LIGHTS AND SITE IMPROVEMENTS SHALL BE STAKED o LL IN THE FIELD FOR APPROVAL BY THE OWNER'S REPRESENTATIVE PRIOR TO a ACCESSIBLE PARKING SPACE Elk ® L-0 3 10 ONSTRUCTION. SLAB ON GRADE SEE STRUCTURAL PLANS \ \ ,,,„w \ `6\V,,,1\,\ \ , , ��PED \ -� The LA GROUP \ \/ T \1 9inee�in9 P.C. Y � ��,,_'\ L\ \ \1N' \ Lendacepe Architecture @En - 11111 \ --___------ _ '..s\ \yy..HYD \\ 40 Long AIIeY 42:4141-Z5!6874-4-(p)8181°81 P'518-587-8100 n 1 \1 \\ Saratoga Springs f 518 587 0180 L ‘-q V, Y YL _ NY 12866 wwthaln m c- � 9rouP m \ I Z I\ N _.�,,- O _ \\.1 AS PIPE -� N 1\\\� \ ® Y'{ - -- -- o _- •J •--�G k\ _ u��u[nor zed da[on to[n.ca w- _ „ _�., DMH `` Nowvork xac ed„�aro,�Wro�7�oe o/m� 1294.34 L..�JJ\ TF=295.17 r=296.39 1 -- -�W�� - �x 11,,I.::,?..'[-___ NOACCESS / __-------''- --W� \ -.---W- w Access • MAPLE AVENUE Hthe wGroup mn O TF=''ii \ -1------ W W 0. 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FFE - ---TC7.5FFEFFE271.51.0271271 ROnca 271,0-- BC 271.0 274.00 271.00;I 271.0 ,�• .270.s I ��" 1 -- --- Flat ROck m 270.35_ � T70.671 ' J' r",■, •' _.-■ 270.557- _ -- - B76., Parking Garage e�J-- L JJ-J J JJ-J JJ- 'L / - o 270.1 01.1 TC 270.4 BC 2699 Saratoga Springs,Y TC 270.6 - L M 270.71 N 267.28 BC 270.36 `. _ - ----- rr-no.vs x 270.4 270.4 -------- 270 1- TC/BC 269.3 N __ --• t ire vol _ _ zs9.1 270.2\I 270.55--- - -- 270.55 x '----- -- .->I 1 271 2710111.111‘ 2682 ASPHALT PAVEMENT z7a.a �� z7o.s z7o.z 27,.2 j�12"RCP !��,-/ S 27.� /- •ROPER LINE 2 - • _ 27n 2 -TO SLOP€T9 WON T I �, T � �- T --j- 269.7 269.7\269.7 269.8 - ?? • EXISTING 270.4 _-/_ _ 270 W c W W d1- W W WAS \'' W W %2GS W- W�e V WW •. W W ry o�\ vo.2 va.z< # o # zs9 • \\ TF 268.8 EX _--- 269,1 268.9 \MATCH EXISTING 5 S 5 5 S S b S _ - 5 $ S S 5 p \ TV AE4.64�-EHNWE-MNT TO • s -..,8 \ - TF-268.61 \ SLOPE TO MATCH EXISTINBG- BENCH=262,40\ SSS HIGH ROCK AVENUE Box CULVERT=zs8.z7 ornH -... --- - ---�TF 268.57 --- - -•`- SUMP=258.39 Prolec[N.:. 2018127 1 S 5 ---S-_- 5 --5 I..---__ - S --5- •. --- • S _-1-4,1,2SUN 426119 --- --- osv,n Sh'id: oRHI � __�� S '� KIT o o ` ./ 0 0 .-11.111 ®�----,_ S �5 0 GAS HHI_._-S -O / I Date 7/92019 ae: 1'-2C' GRADING NOTES: LEGEND Rev: Descr pt or'. Date: 1 PLe.N MODIFICATIONS 7/19/2019 1. EXISTING CONDITIONS ARE TAKEN FROM A SURVEY PLAN ENTITLED"BOUNDARY SURVEY NECESSARY ALL UTILITY AND SITE STRUCTURES SUCH AS LIGHT POLES,SIGN POLES, 20 10 0 5 10 15 20 SHOWING A PORTION OF LANDS OF NOW OR FORMERLY OF THE CITY OF SARATOGA 7. ALL PROPOSED TOP OF VERTICAL CURB ELEVATIONS ARE SIX INCHES(6")ABOVE MAN HOLES,CATCH BASINS.HAND HOLES.N/ATER AND GAS GATES,HYDRANTS,ETC., PROPERTY LINE SPRINGS ANDA PORTION OF LANDS NOW OR FORMERLY UNDER LEASE AGREEMENT TO BOTTOM OF CURB UNLESS SHOWN OTHERWISE. FROM MAINTAINED UTILITY AND SITE SYSTEMS UNLESS OTHERWISE NOTED ON THE 850 MAJOR CONTOUR - THE SARATOGA SPRINGS CITY CENTER AUTHORITY",DATED JAN.3,2017,AS PREPARED UTILITY DRAWINGS ORAS DIRECTED BY THE OWNER'S REPRESENTATIVE. BY CT.MALE ASSOCIATES.HORIZONTAL AND VERTICAL DATUM IS AS NOTED ON THE 8.WHERE NEN/PAVING MEETS EXISTING PAVING,NEW PAVING SHALL MEET THE LINE AND 852 MINOR CONTOUR PROJECT SURVEV. GRADE OF THE EXISTING PAVING. 14.CONTRACTOR SHALL BLEND NEW EARTHN/ORK SMOOTHLY INTO EXISTING,PROVIDING VERTICAL CURVES OR ROUNDINGS AT ALL TOP AND BOTTOM OF SLOPES. -850- EXISTING MAJOR CONTOUR 2. ALL PROPOSED GRADES SHALL BE SET IN THE FIELD BY A NEW YORK STATE LICENSED 9.SET CATCH BASIN AND DROP INLET RIMS TO DRAIN SURROUNDING AREAS AND AT SAME LAND SURVEYOR. PITCH AS SLOPING PAVEMENT.IF STRUCTURE IS SHOWN ADJACENT TO CURB,SET 15.CONTRACTOR SHALL MAINTAIN THE INTEGRITY OF THE EXISTING DRAINAGE SYSTEM AT -852 EXISTING MINOR CONTOUR GRATE TIGHT TO FACE OF CURB. ALL TIMES.DURING EARTHWORK OPERATIONS,DRAINAGE TOF THE SITE RAND ADJACENT 57 .raving T. _ 3 ART OF ONSTRUCTION.ALL SECONDARY BENCHMARKS SHALL BE 50 LOCSTED THAT 10.EXCAVATION REQUIRED WITHIN 3 FEET OF EXISTING UTILITY LINE SHALL BE DONE BY RESUL ING FROMdCONCENTRATEDTRUN--OFF.WHENRT IS NECESSARY TOO NTERRUPTTHE PROPOSED SPOT ELEVATION Grading Plan THEY WILL NOT BE DISTURBED BY CONSTRUCTIO. HAND.CONTRACTOR SHALL REPAIR ANY DAMAGE TO EXISTING UTILITY LINES OR EXISTING DRAINAGE PATTERNS AND!OR UTILITIES,PROVIDE TEMPORARY FACILITIES +295.8 STRUCTURES INCURRED DURING CONSTRUCTION OPERATIONS AT NO ADDITIONAL COST UNTIL WORK IS PERMANENTLY STABILIZED AND APPROVED BY OWNER'S + EXISTING SPOT ELEVATION 4. PITCH EVENLY BETWEEN SPOT GRADES.ALL PAVED AIA' EAS MUST PITCH r0 DRAIN'ATL T A TO OWNER. REPRESENTATIVE. MINIMUM SLOPE OFONE-EIGHTH INCH(1!8")PER FOOT.MAXIMUM CROSSPITCH OF ALL ST EXISTING STORM DRAIN SIDEWALKS IS 2%.ANY DISCREPANCIES NOT ALLOWING THIS TO OCCUR SHALL BE 11,GRADE AREAS ADJACENT TO BUILDING LINES TO DRAIN AWAY FROM STRUCTURE AND 16.IN ALL LAWN AREAS,ROUGH GRADE SHALL BE BROUGHT TO WITHIN 4"OF FINISHED REPORTED TO THE OWNER'S REPRESENTATIVE PRIOR TO CONTINUING WORK. PREVENT PONDING.FINISH SURFACES SHALL BE FREE FROM IRREGULAR SURFACE GRADE UNLESS OTHERWISE NOTED. W EXISTING WATER LINE CHANGES. 5. MAXIMUM CROSSPITCH OF ALL SIDEWALKS IS 2%.RAMPS SHALL NOr EXCEED 1 IN 12 OR 5 EXISTING SANITARY LINE ora,wnq,vo. - 30'IN LENGTH.ANY DISCREPANCIES NOT ALLOWING THIS TO OCCUR SHALL BE 12 SLOPE SIDES OF EXCAVATIONS TO COMPLY WITH LOCAL CODES AND ORDINANCES a�" REPORTED TO THE OWNER'S REPRESENTATIVE PRIOR TO CONTINUING WORK. HAVING JURISDICTION AND OSHA REGULATIONS.MAINTAIN SIDE SLOPES OF sz kc" EXCAVATIONS INASAFECONDITIONUNTILCOMPLETIONOFBACKFILLING. ///,/ZFZ/ EROSION CONTROL MATTING L-05 _ 6. SITE PAVEMENT SHALL MEET ALL BUILDING DOOR THRESHOLDS FLUSH AND IN ACCORDANCE WITH ADA GUIDELINES. 13.THE GENERAL CONTRACTOR SHALL MAINTAIN OR ADJUST TO NEW FINISH GRADE AS \ \\\ \ "NNIEI/E=TITICNOGXgA /.6------- -- /-----55--------- „s s) -,.;•,(33,\I\ \ 51„ A111.11111111.1111111111111111 \\, ! Lg w ' \w'GA' The LA GROUP\ ___ .co p...--- -- ,-,,,I;----J _ ----fil-'—° -- I T \ ``.3,L;t7gg.As't'ag. -- NOT A-CSE=3LE s__.---"ww---- „ww_c----55-55\ws\w's \ \ __,L_ ------,----.---w---.---w ,. v 7 ,— MAPLE AVENUE ____-------- __-4,----- ''— 111--w-4--w---w----w---w-- " 'wv4\''—wv° ± `2,ihiriFZEirif:Fh'the ''--------5'---- / i - , ......1 -- \------- --------- ----''''-- - -,---7',--°:„n'TTi ms fi ____ __. .c\, , '''s _--. Saratoga Springs ,-...-. r ,T.PROFERIV'e UNE , 4 ,,,, 7 City Center 1 I I \',, 522 Broadway I l' r''''' Saratoga Springs,NY 12866 • --- ..... - .„--../....... •'m iti 1 11 —--- • \- 1 4"PVC SANITARY CB ' / RIM.295.5 I LATERAL.2,MIN.SLWE k I i I 1,_.j,„_., 4 \ ___----- • , ,.., 1 1 L1-- 'PEI . SANITARY CLEANOUT MI ' '1111 MY I I .. . . ., . , 2"COPPER NPE K I 0, WATER SERVICE y .„,,...., 1 H . _ , ,_, 0 iv, SEE MEP PLANTNFZSZ,R=IP4? 1 - 1 1 CB / RIM 283.3 I RIM:270.5 ak'''' OB irm:270.0 1 it 1 : Y''I 2"ITIZSEYRINTCIA:7 ICL 270.0 12"FHOURIP4rNEE'CST:NTO'CPTTOISI ""27' 1 21 '1W' / HYDRODYNAMIC SEPARA1R a )0 STUB,SLIF,,,\T;YA 1,4D,TGEER,; RIM:27.1 NW LI: I INV.IN:26.0 I III z 0 147) I S I D E W A L KcFoONRN FELJTToRNE I -II •—. INV.OUT(EXIST,265.01,FIEIINEliCigNSF61111°,1 Cs,IELEVV,,,,_TArE,SEPARATOR,.._ I , • CO 1 4. CI ' 1 - -'•- INV.(BLDG):267.0-4 1 I n.flJEll266.25 FlatkinRock Il STUB,ATER L ERAL 5 LF FROM EDGE IIF SIDET/ALK FOR FUTURE CONN:TION.3TUB WITH 'I, PRES RE TIG'T CAP.ASS I/4LY. , -' •,-, 12I RCP Parg Garage . Saratoga Springs,NY 2•CURB STOP T - ' ---T s-\ ,L-if4 I'''F/1S2.1:0HPDEP E ,- . - --W- aill • HYD. WV '-_, W\, ° -'''z allt ' ° C4INECT EXISTING UNDERGROUND ''' HY, Mil, . .... le • III ...._ s s BM All.7 HIGH ROCK AVENUE ExisTiNG iT2,pipE TELEPHONE TO REMAIN s , S ADJUST RIM ELEVATION OF REMOVEsIAND REPLACE FRAME 8 s-- S- -S-Ak '' AIM S - -2--, ADJUST RIM ELEVATION OF EXISTING SANITARY MANHOLE AS .CONNEECLT TO EfT2143116):my LOCATION OF 12"DUCTILE IRON PIPE EXISTING 12" ,13- / REQUIRED TO BE FLUSH WITH EXISTING WATER VA4VvE;370,)!, GRATE.INSTALL FRAINE.8,G0,11: PVC PIPE S I' --T-I.,- --3 OPAL,TH,F, LOCATION OF-- 5 i"I',17ELB TAKENEZO,M4 EXISTING 30.RCP SANITARY MAIN PROPOSED FIRE HYDRANT 0 ZA MT ITA nE/WEIT2?)011;rES‘11901PV NT E R 1N271 NI-1\';:TL °ANR g'F' _ 0 _s ) ADJUST'RIM ELEVATION OF ADJUST RIM ELEVATION OF MAP REFERENCE NO.4 EXISTING WATER VALVE BOX U 5 0 EXIZTTOTAAZLREZ=FX RIM:269.9 s —s -1 s _ 1 THR,sum426,i, 7STING WATER VA,,I,V,,E213g ° U a Mai rols________ As. _ co , , ,,, GAS HH 5Risw WATER SYSTEM NOTES UTILITY NOTES LEGEND How,No: 2018127 CM es, 1. '1;iSALTDEIIS'I rF1==igrS.:'.ALL BE"STALLED'A'AINIMUM DEPTH'C'ER 1. TAFIJI-EXITInRR=Bg\j/IETUATZTLVEGPO.,°44-47Z-42EJSIgS=OPNNTE=ITMLTHE • •••••• •••••• ••••• •PROPERTY LINE LOCATION OF ALL EXISTING UTILITIES BEFORE COMMENCING WORK.ANY COSTS UNDERGROUND ELECTRIC 2. '011-N°F0:T=ZESiSTL:EcTYDO=GA-TATsSP(aTTAENRD7V,MZO:os AND INCURRED BY THE CDNTRACTDR DUE TD'NW'T°CDNTACT THE PRDRER Few Desc,ia, .... , SHALL BE PERFORMED UNDER THE SUPERVISION OF THE CI,ENGINEER.BACTERIA ADTHMITIEE'ALL E'DME THE REERCINEIBILITY CIF THE CCINTRACTDR S SANITARY SEWER LINE # l'i_<,'gNiig IR'-CF,TTEuRR:IMZR'NmAATiNAcr>l,7E..-1=Pcil-rRY°-/O liL'R\NR:AVYAR'Y'16LuTAALIKTY.2.IaAjINDoNFDoRoLTIT5T-r=ropil="'DING TEI""RIFIED EASED DN FINAL ST STORM LINE 4 WATER SERVICE LINES ARE EXCLUDED FROM THIS REQUIREMENT. W WATER LINE 3.THE LOCATION OF UNDERGROUND UTILITIES SHOWN ON THIS PLAN ARE DIAGRAMMATIC 3.THERE SHALL BE A MINIMUM HORIZONTAL SEPARATION OF TEN FEET(EDGE TO EDGE) FoR iNFoR,AA-ioN oNLy AN,musy BE,E,,E,ED By THE coNTRA,To,pRio,, GAS LINE ,-,I BETWEEN ANY WATER MAIN AND.Y SANITARY°R BT..'SEWER THERE SHAH-Al-BB CONSTRUCTION A,UTILITIES MAY NOT DE SHOWN CONTRACTOR SHALL COORDINATE ,,, BE A MINIMUM VERTICAL SEPARATION OF EIGHTEEN INCHES BETWEEN ANY WATER MAIN LocAyioN oF AL uTiLmEs(LiNEs,DucTs,coN,,,is,sLEEvEs,FooTiNG,E,,wiTH W PROPOSED WATER LINE 6 AND ANY SANITARY OR STORM SEWER. LOCATIONS OF PROPOSED LANDSCAPE ELEMENTS(WALLS,FENCE,FOOTINGS,TREE '., 4. ALL WATER MAIN AND FIRE HYDRANT VALVES SHALL OPEN RIGHT(CLOCKWISE,. 'E'CRSENPL/IksISI G IPERS7CEri= 1-RrIENSGESN'TEATTV'EN.NA I=M%-rEELRIENPCIDURRTR'ENDY SAN PROPOSED SEWER LINE ,,,,,,,,,rhve• ST PROPOSED STORM DRAIN Utility Plan ,;' 5.WATER VALVE BOXES,EXISTING STRUCTURE RIMS,NEW STRUCTURE RIMS,ETC.,SHALL i%),TNBE EB))U2Er2 laFB,E,BTB,,,TRBE"NTRABIBB T"EBIBY'ILI'L".BN"BALE BE l' IBN EOT\IEDD'ASI,TDE/0-R'IDICR°E NCI=VIPFL:SI TEPPREES=1A-TZD ES UNLESS'HEN"' 4.EXCAVATION REQUIRED WITHIN PROXIMITY OF UTILITY LINES SHALL BE DONE BY HAND. ',..' 5.ERI<CrA=REEDEBLYNTIIHrIXIO=SGrACNEDS:=0ErLISH SITE L'ILITY Pi 6.CONTRACTOR SHALL PROTECT AND SUSTAIN IN NORMAL SERVICE ALL EXISTING UTILITIES,STRUCTURES,EQUIPMENT ROADWAYS AND DRIVEWAYS FOR THE DURATION 0664,,,, HI OF CONSTRUCTION. L-06 ill L % P \'{7>z® • \ \ m 9 vP \\ The LA GROUP m._ \\ X \ Landscape Architecture@Engineering P.C. \ -„- t P p(c.Purgom.P(ac¢. / 40 Long Alley p:518-587-8100 Q CP o \ Saeatoga Springs ;518587-0180 , -, —. l, NY 12866 wwwthelsgroup.cam .X _—_\ , o a- Unanoized alteredon or addl[ion to[nls / / / ..• do<umct isaviolationof Scction]?0oithc \/ — r....\ .. / New Vork Stutz Education Law. / m / MAPLE AVENUE omewcroaPzon o' m p / , Saratoga Springs 1 ■■ r I City Center P 4. _ -� ■� ___ __ PROPERTY LINE / Vr.._. `' UE *I4r: • . , , 6, ,, ,•-, , , rift _ 00001,01.--i741.41111,104raefil* 1E9 LAWN lop l IL., I. likommoiko 00000 , ,L\\\ '- 1 �I ® I0 ,0 mil® 1 d61 LAWN I ■_ , IA E en �, , ■ m LAWN--- i— J --1 LAWN I em =1 LU ---' I I . r ��TT'I,ll ] MS V r' v ;eer,re II1IiViIIiiiI& S1hjItIrii. A rA IGH RDKTSPIER l' �� ,�� I-•. � �■� LA,,,/N ParkingG�� 1 HIGH ROCK AVENUE — Project Na.: 201812] - t--I Design: CMI _— — w I — Drawn: MCR Ch k Scale: CMI Date: ]/92019 Sale: 1"-2C' R. Description: Date: PLM MODIFIC,IONS 7,209 PLANT LIST LEGEND zo 1a o s 10 1e zo Sym.I QTY.I BOTANICAL NAME I COMMON NAME I SIZE I REMARKS SPACING DECIDUOUS TREES PROPERTY LINE Scale:1”-20' _ Q64 TQrcopaGenspire' Zeask, Linden 3"-3 1/2"cal. B&B h J✓DECIDUOUS TREE - UA 2 Ulmas americano'Valley Forge' Valley Forge American Elm 3"-3 1/2"cal. B&B iEVERGREEN TREES m ,Pi o.,m9 rla ,' AB 1 Ables balsamea 1 Balsam Fir 110-1'ht. 1B. - EVERGREEN TREE 5 ORNAMENTAL TREES Landscape Plan i 9 I Malus'Adlrondack' Adirondack Crab fipple 1 112"cal. B88 S„RAUBS ) ORNAMENTAL TREE a IG I 37 I Ilex glebra Compact Inkberry 18"-24"ht. See Plan PERENNIALS I GRASSES O0o SHRUBS/PERENIALS AM 35 AsilbeM1lontgomery' Montgomery Meadow Sweet F2 cont. 18"O.C. PV 44 Panicur,'1, tumShenandoah' 'Shenandoah'Switchgrass F2cont. 24"O.C. warw,7yo. LAWN G LL L-07 The LA GROU P Saratoga Long Alley p:518-587-8100 Springs f 518-587-0180 IVY 12866 www.thelagroup.com Landscape Architecture&Engineering P.C. Stormwater Pollution Prevention Plan Prepared in accordance with NYS DEC General Permit GP-0-15-002 for: Flat Rock Parking Garage Owner/Operator(s): Saratoga Springs City Center 522 Broadway Saratoga Springs, NY 12020 SWPPP Contact(s): The LA Group, PC 40 Long Alley Saratoga Springs, NY 12866 1-518-587-8100 1-518-587-0180 SWPPP Preparation Date: July 10, 2019 Table of Contents 1.0 PERMIT OVERVIEW AND REQUIREMENTS 1 1.1 PERMIT OVERVIEW 1 2.0 SWPPP REVIEW, UPDATE 2 2.1 SWPPP REVIEW 2 2.2 SWPPP UPDATE 2 3.0 SITE ASSESSMENT, EVALUATION AND PLANNING 3 3.1 PROJECT LOCATION 3 3.2 PRE-DEVELOPMENT CONDITIONS 3 3.3 PROJECT TYPE 3 3.4 PROJECT SCOPE 3 3.5 HISTORIC PRESERVATION DETERMINATION 3 3.6 RECEIVING WATERS 3 3.7 SOILS 4 4.0 EROSION AND SEDIMENT CONTROL 4 4.1 EROSION AND SEDIMENT CONTROL PRACTICES 4 4.2 EROSION AND SEDIMENT CONTROL DRAWINGS 4 4.3 CONSTRUCTION PHASING PLAN AND SEQUENCE OF OPERATIONS 4 4.4 EROSION AND SEDIMENT CONTROL PRACTICE MAINTENANCE 6 4.5 EROSION AND SEDIMENT CONTROL INSPECTION 6 4.6 CONTRACTOR SEQUENCE FORM 7 5.0 POST CONSTRUCTION STORMWATER MANAGEMENT PRACTICES 7 5.1 STORMWATER MANAGEMENT CONTROLS 7 5.2 GREEN INFRASTRUCTURE PRACTICES/RUNOFF REDUCTION TECHNIQUES 7 5.3 POST CONSTRUCTION STORMWATER MANAGEMENT DRAWINGS 9 5.4 HYDRAULIC AND HYDROLOGIC ANALYSIS 9 5.5 COMPARISON OF PRE AND POST CONSTRUCTION STORMWATER RUNOFF 9 6.0 POST CONSTRUCTION STORMWATER MAINTENANCE 10 6.1 MAINTENANCE TO BE PERFORMED 10 7.0 CONSTRUCTION WASTE 10 8.0 OFFSITE VEHICLE TRACKING 11 9.0 TEMPORARY STABILIZATION FOR FROZEN CONDITIONS 11 10.0 SPILL PREVENTION PRACTICES 12 11.0 CERTIFICATIONS 16 12.0 DEFINITIONS 21 Appendices A Notice of Intent (NO I) and MS4 Acceptance Form B Stormwater Management Report and Hydro CAD C Map Set — Location Map and Construction Drawing D SWPPP Inspection Forms —SWPPP Inspection Report E Other SWPPP Forms — Construction Sequence, SWPPP Plan Changes, Spill Response Form, Stormwater Management Practice Maintenance Log F SPDES General Permit GP-0-15-002 G Historic Preservation/Endangered Species Documentation H Deep Ripping and De-compaction (DEC, 2008) Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 1 .0 PERMIT OVERVIEW AND REQUIREMENTS 1.1 Permit Overview This Stormwater Pollution Prevention Plan (SWPPP) is prepared to inform the landowner and construction personnel of the measures to be implemented for controlling runoff and pollutants from the site during and after construction activities. The objective of this plan is to comply with the New York Department of Environmental Conservation (NYSDEC) State Pollutant Discharge Elimination System (SPDES) General Permit for Stormwater Discharges from Construction Activities, Permit No. GP- 0-15-002 requirements. Any material conflicts between this plan and the site plans, specification or instructions, must be brought to the attention of the design professional. The project may have other permits and it is the responsibility of the owner and contractor to know and understand all permits. The operator will be issued a bill from New York State for a one hundred and ten dollar ($110.00) annual fee for the open GP-0-15-002 permit. The operator will also be billed by New York State for a one time one hundred and ten dollar ($110.00) per acre fee for the proposed disturbed soil area listed in the NOI, and finally a one time six hundred and seventy five ($675.00) per acre fee for the proposed increased impervious area listed in the NOI. The operator is responsible to maintain onsite in a secure location that is accessible during normal working hours to an individual performing a compliance inspection, the following information: ✓ the Notice of Intent (NOI), ✓ the NYS Department of Environmental Conservation NOI Acknowledgement Letter, ✓ the SWPPP, ✓ a copy of the General Permit (included in the SWPPP), ✓ MS4 SWPPP Acceptance Form (where applicable), and ✓ All inspection reports. All post-construction stormwater management facilities must be inspected annually by a qualified professional, a report prepared and submitted to the City Engineer documenting the inspections as well as the maintenance activities that were completed during the prior year. Technical standards are detailed in the "New York State Standards and Specifications for Sediment and Erosion and Sediment Control (November 2016)", as well as illustrated on the Construction Drawings included in Appendix C. The design of post- construction stormwater control practices follow the guidance provided by "New York State Stormwater Management Design Manual." The LA GROUP Landscape Architecture cg,Engineering P . Page Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project# 2018127 2.0 SWPPP REVIEW, UPDATE 2.1 SWPPP Review Applicable Federal, State, and local regulatory agencies that have jurisdiction may elect to review this SWPPP and notify the permittee in writing that the SWPPP does not meet the requirements of their regulations. If the SWPPP needs to be revised, the permittee and the site contractor will make the required modifications within seven days of such notification and submit written certification to the notifying agency that the changes have been implemented. A copy of the SWPPP will be kept available on site for review by regulatory agencies, engineers, and subcontractors. This project is a City of Saratoga Springs' project, so no MS4 approval is required. 2.2 SWPPP Update The permittee identified in this SWPPP shall amend the SWPPP under the following conditions: ✓ Whenever the current provisions prove to be ineffective in minimizing pollutants in stormwater discharge from the site ✓ Whenever there is a change in design, construction or operation that could have an effect on the discharge of pollutants ✓ To address issues or deficiencies identified during an inspection by the qualified inspector, the Department or other regulatory authority ✓ To identify a new subcontractor that will implement any part of the SWPPP. If modifications are required to the post-stormwater management practices and the Project is within a regulated, traditional land use control MS4, the owner or operator of the Project must notify the MS4 in writing of any planned amendments or modifications to the post-construction stormwater management practice component of the SWPPP. Unless otherwise notified by the MS4, the owner or operator shall have the SWPPP amendments or modifications reviewed and accepted by the MS4 prior to commencing construction of the post-construction stormwater management practice. The SWPPP PLAN CHANGES, AUTHORIZATION, AND CHANGE CERTIFICATION form (Appendix E) must be filled out and a copy retained onsite during construction. If modifications are required to the post-stormwater management practices and the Project is not within a Regulated, Traditional Land Use Control MS4, the changes shall be documented in the SWPPP kept onsite. The LA GROUP Landscape Architecture&Engineering P . Page 2 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 According to the Natural Resources Conservation Service (NRCS) Web Soil Survey, the area including and surrounding the Project Site is comprised of Deerfield loamy sand and Windsor loamy sand. The hydrological soil group classification for this type of soil is `A'. A portion of the site is also comprised of Galway loam, which has a hydrological soil group classification of `C'. 4.0 EROSION AND SEDIMENT CONTROL 4.1 Erosion and Sediment Control Practices Temporary Structural Practices ✓ Silt Fence ✓ Dust Control ✓ Stabilized Construction Entrance Permanent Structural Controls ✓ Grading Temporary Stabilization Practices (including vegetative practices) ✓ Seed and mulch bare soil areas within 14 days of disturbance unless construction will resume in that area within 21 days. Permanent Stabilization Practices (including vegetative practices) ✓ Seed and mulch all disturbed areas. Slopes that are 3:1 or steeper should receive a Rolled Erosion Control Product (RECP), sodding, and or hydro - seeding ahomogenous mixture of wood fiber mulch with tackifying agent. Refer to Construction Drawings attached in Appendix C for detailed information on each practice. 4.2 Erosion and Sediment Control Drawings Erosion and Sediment Control practices are shown on Construction Drawings included in Appendix C. 4.3 Construction Phasing Plan and Sequence of Operations The project will disturb less than five acres at a single time. ✓ Temporary structural erosion controls will be installed prior to earthwork as per the attached plans. ✓ Areas to be undisturbed for more than 14 days will be temporarily stabilized by seeding. ✓ Disturbed areas will be reseeded and mulched immediately after final contours are re-established and no more than 14 days after the completion of construction at that site. LOM, The LA GROUP Landscape Architecture & Engineering P.C. Page 4 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 ✓ Temporary erosion control devices will not be removed until the area served is stabilized by the growth of vegetation and the area is certified as being stabilized by the Erosion Control Superintendent. LC=1 The LA GROUP Landscape Architecture & Engineering P.C. Page 5 Reference Construction Activities Sheet Start 4 Stop Number Sequence must include major items such as, but not limited to, clearing and grubbing, excavation and grading, utility and infrastructure installation and any other activity resulting in soil disturbance. Include installation of erosion and sediment control practices and timing of installation. Install silt fence and construction entrance Week 1 Demo existing pavement Weeks 2-4 Begin utility installation Weeks 4-7 Begin parking garage construction Weeks 7 - completion Monitor/maintain erosion and sediment control measures Ongoing Remove erosion and sediment control measures upon Ongoing stabilization of contributing areas LC=1 The LA GROUP Landscape Architecture & Engineering P.C. Page 5 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 4.4 Erosion and Sediment Control Practice Maintenance ✓ Silt fence — maintenance shall be performed as needed and material removed when "bulges" develop in the silt fence. ✓ Stabilized construction entrance — entrance shall be maintained in a condition which shall prevent tracking. This may require periodic top dressing with additional aggregate. All sediment tracked onto or spilled on public rights of way shall be removed immediately. When necessary, wheels must be cleaned to remove sediment prior to entrance on public rights of way. When washing is required, it shall be done in an area stabilized with aggregate and wash water shall be directed away from streams or wetlands preferably to a broad grassed area or a stormwater pond. ✓ Replace top -soil, mulch and seed where seeding has been disturbed. 4.5 Erosion and Sediment Control Inspection It is recommended that a rain gage be installed at the site. A qualified inspector shall conduct an assessment of the site prior to the commencement of construction and certify in an inspection report that the appropriate erosion and sediment controls described in the SWPPP and required by GP -0-15-002 have been adequately installed to ensure overall preparedness of the site for commencement of construction. This qualified inspector must be a Licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered Landscape Architect, or someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided they have received 4 hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity. After receiving the initial training, the qualified inspector shall receive 4 hours of training every 3 years. The day-to-day erosion control activities on the site will be monitored by the construction manager. The qualified inspector (as defined by the NYS DEC SPDES regulations) and his crews will make at least one inspection every seven (7) days of erosion control devices, and non -stabilized areas during construction. A maintenance inspection report will be completed by the qualified inspector after each inspection. The report form to be completed by the inspector is attached in Appendix D. Reports should be compiled and maintained on-site in the SWPPP 3 -ring binder. All measures will be maintained in good working order; if repair is necessary, it will be initiated within 24 hours of report. The qualified inspector shall take photographs of any needed repairs and also photograph when the repairs are completed. These photographs will LOM, The LA GROUP Landscape Architecture & Engineering P.C. Page 6 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 be time and date stamped and attached to the weekly inspection report. Seeded and planted areas will be inspected for bare spots, washouts, and healthy growth. If necessary, spot reseeding or sodding will be implemented. A trained contractor will be an employee from the contracting company responsible for the implementation of the SWPPP. This person will be onsite when any soil disturbing activities are being conducted. The trained contractor must have received 4 hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity. After receiving the initial training, the qualified inspector shall receive 4 hours of training every 3 years. This trained contractor cannot conduct the regular SWPPP compliance inspections unless they meet the qualified inspector qualifications. 4.6 Contractor Sequence Form The operator shall prepare a summary of construction status using the Construction Sequence Form (included in Appendix E) once every month. Significant deviations to the sequence and reasons for those deviations (i.e. weather, subcontractor availability, etc.), shall be noted by the contractor. The schedule shall be used to record the dates for initiation of construction, implementation of erosion control measures, stabilization, etc. A copy of this table will be maintained at the construction site and updated. 5.0 POST CONSTRUCTION STORMWATER MANAGEMENT PRACTICES 5.1 Stormwater Management Controls The proposed Post Construction Stormwater Management controls on this project are listed below: ✓ Hydrodynamic Separator 5.2 Green Infrastructure Practices/Runoff Reduction Techniques The proposed project reduces the overall impervious area on the site and therefore the implementation of stormwater management practices with runoff reduction capabilities is not required. Soil Restoration Excessively compacted areas and areas of cut and fill on the Project Site will have soil restoration applied as needed and as specified in the table below. Attached in Appendix H is "Deep Ripping and De -compaction, (DEC 2008)." This methodology should be followed for soil restoration as specified in the table below: LOM The LA GROUP Landscape Architecture& Engineering P.C. Page 7 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 Type of Soil Disturbance Soil Restoration Re quire me nt Comments /Examples Minimal Soil Disturbance Restoration not permitted Preservation of Natural Features Areas where topsoil is stripped Restoration not required Clearing anGrubbing Gru ng only -no change in grade HSG A& B HSG C & D Areas of cut and fill apply 6 inches of Aerate* and apply topsoil 6 inches of topsoil Heavy traffic areas onsite HSG A& B HSG C & D (especially in a zone 5-25 feet Aerate and apply 6 Apply full Soil around buildings, but not within a 5 foot perimeter around inches of topsoil Restoration** foundation walls) Keep construction equipment from Areas where Runoff Reduction Restoration not required, but may be crossing these areas. To protect and/or infiltrationractices are p applied to enhance the reduction newly installed practice from any applied specified for appropriate practices ongoing construction activities construct a single phase operation fence area. *Aeration includes the use of machines such as tractor -drawn implements with coulters making a narrow slit in the soil, a roller with many spikes making indentations in the soil, or prongs which function like a mini subsoiler **Per "Deep Ripping and Decopmpaction, DEC 2008" • If compost amendment is required, 2 to 4 inches of screened compost will be incorporated into the soil. • Prior to application of the deep -ripping and de -compaction, the depth to bedrock or naturally occurring hardpan should be known so that the depth of tillage be adjusted according to those restrictive depths. • Soils with a slope that exceeds 10% will not have full soil restoration with deep -ripping and de -compaction due to potential for erosion from tilled soil. • Any soil tillage (deep or shallow) will not be done on soils that are excessively wet, as this will damage the soil. • Any tillage will not be done within approximately 10' of the drip -line of any existing established trees. • Any large stones that are unearthed during tillage should be removed from the surface prior to final surface preparation and vegetation establishment. 5.3 Post Construction Stormwater Management Drawings Post construction stormwater management controls are shown on Construction Drawings included in Appendix C. LC=1 The LA GROUP Landscape Architecture Q Engineering P.C. Page 8 Stormwater Pollution Prevention Plan 5.4 Hydraulic and Hydrologic Analysis Flat Rock Parking Garage The LA Group Project # 2018127 The program utilized for quantifying stormwater runoff rates and volumes was HydroCAD software, produced by Applied Microcomputer Systems of Chocorua, NH. The SCS 24-hour Type II design storms for 1, 10, and 100 -year frequency rainfall were analyzed. ✓ Hydrologic/hydraulic analysis for all structural components of the stormwater control system for the applicable design storms (see Appendix B). ✓ Comparison of post -development stormwater runoff conditions with pre - development conditions (see Appendix B). ✓ Dimensions, material specifications and installation details for each post - construction stormwater control practice (see Appendix B and C). 5.5 Comparison of Pre and Post Construction Stormwater Runoff Stormwater Quantity. These calculations are based on the HydroCAD analysis. Pre Development Post Development 10 year, 24 hour storm Q 12.61 cfs 12.25 cfs 100 year, 24 hour storm Q 21.73 cfs 20.91 cfs Water Quality Volume Calculations The following was utilized to determine water quality volume: WQv= (P) (Rv)(A) 12 Where: WQv= Water Quality Volume (acre/feet) P = 90% Rainfall Event Rv = 0.05 + 0.009(1) where I is impervious cover in percent A = Subcatchment area in acres Required Provided Water Quality Volume (WQv) 0.102 AC FT 0.106 AC FT 6.0 POST CONSTRUCTION STORMWATER MAINTENANCE 6.1 Maintenance to be Performed The City of Saratoga Springs will be responsible for the continuous upkeep and maintenance of all post construction stormwater management facilities. LOM, The LA GROUP Landscape Architecture & Engineering P.C. Page 9 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 Catch Basins (All) ■ Sediment removal with a vacuum truck should be done at least once a year, preferably after spring runoff and then in early fall, or when they are at 50% capacity, whichever comes first. ■ Any mechanical valves should be operated for inspection every two months. Hydrodynamic Separator Inspections of the separator must be completed at a minimum of twice a year (Site specific maintenance frequency should be established during the first two or three years or operation) Maintenance shall be performed if any internal components are broken or missing, inlet or outlet is obstructed or if the accumulation of trash, debris and/or oil in the baffled chambers around the vortex is significant. All maintenance shall be completed during dry weather when no flow is entering the system. 7.0 CONSTRUCTION WASTE Waste Materials: All waste materials generated during construction will be disposed at a suitable landfill, or transfer station. Hazardous Waste: The project will not be a generator of hazardous waste and it is not anticipated that any hazardous waste will be generated during construction. If there are any materials generated, a licensed hazardous waste carrier will be contracted to dispose the hazardous material at a suitable disposal site. If hazardous materials are discovered during construction, the work will be stopped until the issue is resolved. Waste: Portable sanitary facilities will be made available to construction personnel and will be serviced regularly. 8.0 OFFSITE VEHICLE TRACKING Excavation equipment involved with the construction will remain on the project site and will not regularly egress or ingress the site. Any trucks used to bring in materials or remove materials via municipal paved roads will do so over a stabilized construction entrance. If any off-site vehicle tracking occurs, the contractor will be directed to initiate, street sweeping program in the immediate vicinity of the site. 9.0 TEMPORARY STABILIZATION FOR FROZEN CONDITIONS The following temporary stabilization measures MUST be performed when construction is occurring during winter/frozen ground conditions. The following requirements do not LOM The LA GROUP Landscape Architecture & Engineering P.C. Page 10 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 supersede any other requirements of this SWPPP as they apply to non -frozen ground conditions. ■ Perimeter erosion control MUST still be installed prior to earthwork disturbance as per this SWPPP. ■ Any areas that cannot be seeded to turf by October 1 or earlier will receive a temporary seeding. The temporary seeding will consist of winter rye seeded at the rate of 120 pounds per acre (2.5 pounds per 1,000 square feet) or stabilized as per the temporary stabilization for winter construction/frozen conditions. ■ Any area of disturbance that will remain inactive for a period of 14 consecutive days MUST be mulched. This includes any previously disturbed areas that are covered with snow. ■ Mulch MUST consist of loose straw applied at the rate of 2 to 3 bales (90 to 100 pounds) per thousand square feet. ■ Mulch MUST be applied uniformly over the area of bare soil or bare soil that is covered with snow. For the latter condition, mulch MUST be applied on top of snow. ■ Using a tracked vehicle, mulch MUST be crimped into the bare soil/snow. The tracked vehicle MUST be driven across the mulched areas in at least two directions to maximize crimping of mulch into the soil/snow. ■ If mulch gets blown off an area to a significant degree, the site inspector WILL require that an area be re -mulched in accordance with Items 2 through 5 above, and this area WILL be included on the inspection checklist for the next inspection. ■ If a particular area repeatedly experiences loss of mulch due to wind, then the inspector WILL require that an alternative method be used to secure the mulch in place. Such alternatives may include the use of netting, tackifier or other methods deemed appropriate by the inspector. ■ During periods when snow is melting and/or surface soils are thawing during daytime hours, mulched areas MUST be re -tracked (crimped) as per Item 5 above at least once every seven days, more frequently if directed by the inspector. Additional mulch may be required to obtain complete coverage of an area. Biodegradable erosion control matting may be required on steeper slopes. ■ Additional stabilization measures for non -frozen ground conditions described in this SWPPP WILL be implemented at the time deemed appropriate by the inspector. During the winter season, if a site has been stabilized and soil disturbing activities have been suspended for the winter, weekly inspections can be suspended. However, monthly inspections must still be conducted. All normal weekly inspections must resume when soil disturbing activities resume. LC=1 The LA GROUP Landscape Architecture & Engineering P.C. Page 11 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 10.0 SPILL PREVENTION PRACTICES Good Housekeeping and Material Management Practices The following good housekeeping and material management practices will be followed on site during the construction project to reduce the risk of spills or other accidental exposure of materials and substances to stormwater runoff. ■ Materials will be brought on site in the minimum quantities required. ■ All materials stored on site will be stored in a neat, orderly manner in their appropriate containers, and if possible, under a roof or other enclosure. ■ Products will be kept in their original containers with the original manufacturer's label. ■ Substances will not be mixed with one another unless recommended by the manufacturer. ■ Whenever possible, all of a product will be used up before disposal. ■ Manufacturer's recommendations for proper use and disposal will be followed. ■ The construction manager or his designee will inspect regularly to ensure proper use and disposal of materials on site. ■ The contractor shall prohibit washing of tools, equipment, and machinery in or within 100 feet of any watercourse or wetland. ■ All above grade storage tanks are to be protected from vehicle damage by temporary barriers. Inventory for Pollution Prevention Plan The materials and substances listed below are expected to be on-site during construction. Petroleum for fueling vehicles will be stored in above ground storage tanks. Tanks will either be steel with an enclosure capable of holding 110% of the storage tank volume or of a Con -Store, concrete encased type typically employed by NYSDOT. Hydraulic oil and other oils will be stored in their original containers. Concrete and asphalt will be stored in the original delivery trucks. Fertilizer may be stored on site in its original container for a short period of time prior to seeding. Original containers will be safely piled on pallets or similar devices to protect from moisture. Paints and other similar materials will be stored in their original containers and all empty containers will be disposed of in accordance with label directions. Portable sanitary facilities, which contain chemical disinfectants (deodorants) will be located on-site, with the disinfectants held in the tank of the toilet. Lcm) The LA GROUP Landscape Architecture & Engineering P.C. Page 12 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 Hazardous Products These practices are used to reduce the risks associated with hazardous materials. Products will be kept in original containers unless they are not re- sealable. Original labels and material safety data sheets will be retained; they contain important product information. If surplus product must be disposed of, manufacturers' or local and State recommended methods for proper disposal will be followed. Spill Prevention The following product specific practices will be followed on site. Petroleum Products: ■ Construction personnel should be made aware that emergency telephone numbers are located in this SWPPP. ■ The contractor shall immediately contact NYSDEC in the event of a spill, and shall take all appropriate steps to contain the spill, including construction of a dike around the spill and placing absorbent material over this spill. ■ The contractor shall instruct personnel that spillage of fuels, oils, and similar chemicals must be avoided and will have arranged with a qualified spill remediation company to serve the site. ■ Fuels, oils, and chemicals will be stored in appropriate and tightly capped containers. Containers shall not be disposed of on the project site. ■ Fuels, oils, chemicals, material, equipment, and sanitary facilities will be stored/located away from trees and at least 100 feet from streams, wells, wet areas, and other environmentally sensitive sites. ■ Dispose of chemical containers and surplus chemicals off the project site in accordance with label directions. ■ Use tight connections and hoses with appropriate nozzles in all operations involving fuels, lubricating materials or chemicals. ■ Use funnels when pouring fuels, lubricating materials or chemicals. ■ Refueling and cleaning of construction equipment will take place in parking areas to provide rapid response to emergency situations. ■ All on-site vehicles will be monitored for leaks and receive regular preventative maintenance to reduce the chance of leakage. Any vehicle leaking fuel or hydraulic fuel will be immediately scheduled for repairs and use will be discontinued until repairs are made. Fertilizers: LCM1 The LA GROUP Landscape Architecture & Engineering P.C. Page 13 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 ■ Fertilizer will be stored in its original containers on pallets with water resistant coverings. ■ Proper delivery scheduling will minimize storage time. ■ Any damaged containers will be repaired immediately upon discovery and any released fertilizer recovered to the fullest extent practicable. Paints: All containers will be tightly sealed and stored when not required for use. Excess paint will not be discharged to the storm water system or wastewater system, but will be properly disposed of according to manufacturers' instructions or State and local regulations. Concrete Trucks: ■ Concrete trucks will be allowed to wash out or discharge surplus concrete or drum wash water only at designated locations on site. Asphalt Trucks: ■ Asphalt trucks shall not discharge surplus asphalt on the site. Spill Control Practices In addition to the good housekeeping and material management practices discussed in the previous sections of this plan, the following practices will be followed for spill prevention and cleanup. The construction manager or site superintendent responsible for the day-to-day site operations will be the spill prevention and cleanup coordinator. He will designate at least three other site personnel who will receive spill prevention and cleanup training. These individuals will each become responsible for a particular phase of prevention and cleanup. The names of responsible spill personnel will be posted in the material storage area and in the onsite construction office or trailer. Manufacturers' recommended methods for spill cleanup will be clearly posted and site personnel will be made aware of the procedures and the location of the information and cleanup supplies. Any spill in excess or suspected to be in excess of two gallons will be reported to the NYSDEC Regional Spill Response Unit. Notification to the NYSDEC (1-800-457-7362) must be completed within two hours of the discovery of the spill. Materials and equipment necessary for spill cleanup will be kept in the material storage area onsite. Equipment and materials will include but LOM, The LA GROUP Landscape Architecture & Engineering P.C. Page 14 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 not be limited to absorbent pads, brooms, dust pans, mops, rags, gloves, goggles, activated clay, sand, sawdust, and plastic and metal trash containers specifically for this purpose. All spills will be cleaned up immediately after discovery. The spill area will be kept well ventilated and personnel will wear appropriate protective clothing to prevent injury from contact with spilled substance. Spills of toxic or hazardous material will be reported to the appropriate State or local government agency, regardless of the size kc,11M) The LA GROUP Landscape Architecture & Engineering P.C. Page 15 Stormwater Pollution Prevention Plan 11.0 CERTIFICATIONS Flat Rock Parking Garage The LA Group Project # 2018127 Preparer Certification of Compliance with Federal, State, and Local Regulations This Stormwater Pollution Prevention Plan was prepared in accordance with the New York State Department of Environmental Conservation SPDES General Permit for Stormwater Discharges from Construction Activities (Permit No. GP -0-15-002), pursuant to Article 17, Titles 7, 8 and Article 70 of the Environmental Conservation Law. This SPDES General Permit implements the Federal Clean Water Act pertaining to stormwater discharges. Name: Signature: Doug Heller Title: Civil Engineer Company Name: The LA Group, PC Owner Pollution Prevention Plan Certification Date: 1 certify under penalty of law that this document and all attachments were prepared under my direction or supervision to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who are directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. 1 am aware that false statements made herein are punishable as a Class A misdemeanor pursuant to Section 210.45 of the Penal Law. 1 understand that GP -0-15-002 requires site inspections be conducted by a qualified professional once every seven (7) days and when approved in writing by the NYSDEC, disturbances of greater than five (5) acres at one time require site inspections two (2) times every seven (7) days. These inspections shall be performed by a qualified professional as defined by the General Permit. The Owner/Operator will be held financially responsible for any and all fines related to work tasks that are not specified by the Contractors)/Subcontractor(s) below. Name: Signature: Company Name: 0 The LA GROUP Landscape Architecture & Engineering P.C. Title: Date: Page 16 Stormwater Pollution Prevention Plan Contractor and Subcontractor Certification Flat Rock Parking Garage The LA Group Project # 2018127 1 hereby certify that 1 understand and agree to comply with the terms and conditions of the SWPPP and agree to implement any corrective actions identified by the qualified inspector during a site inspection. 1 also understand that the owner or operator must comply with the terms and conditions of the New York State Pollutant Discharge Elimination System ("SPDES') general permit for stormwater discharges from construction activities and that it is unlawful for any person to cause or contribute to a violation of water quality standards. Furthermore, 1 understand that certifying false, incorrect or inaccurate information is a violation of the referenced permit and the laws of the State of New York and could subject me to criminal, civil and/or administrative proceeding. Name Title Signature Date Company Name Address City, State, Zip Phone Number L The LA GROUP Landscape Architecture & Engineering P.C. Page 17 1. 2. SWPPP Components You 3. Are Responsible For 4. 5. 6. Name of Trained Individual Responsible for SWPPP Implementation Title Signature of Trained Individual Responsible for SWPPP Implementation Date L The LA GROUP Landscape Architecture & Engineering P.C. Page 17 Stormwater Pollution Prevention Plan Contractor and Subcontractor Certification Flat Rock Parking Garage The LA Group Project # 2018127 1 hereby certify that 1 understand and agree to comply with the terms and conditions of the SWPPP and agree to implement any corrective actions identified by the qualified inspector during a site inspection. 1 also understand that the owner or operator must comply with the terms and conditions of the New York State Pollutant Discharge Elimination System ("SPDES') general permit for stormwater discharges from construction activities and that it is unlawful for any person to cause or contribute to a violation of water quality standards. Furthermore, 1 understand that certifying false, incorrect or inaccurate information is a violation of the referenced permit and the laws of the State of New York and could subject me to criminal, civil and/or administrative proceeding. Name Title Signature Date Company Name Address City, State, Zip Phone Number L The LA GROUP Landscape Architecture & Engineering P.C. Page 18 1. 2. SWPPP Components You 3. Are Responsible For 4. 5. 6. Name of Trained Individual Responsible for SWPPP Implementation Title Signature of Trained Individual Responsible for SWPPP Implementation Date L The LA GROUP Landscape Architecture & Engineering P.C. Page 18 Stormwater Pollution Prevention Plan Contractor and Subcontractor Certification Flat Rock Parking Garage The LA Group Project # 2018127 1 hereby certify that 1 understand and agree to comply with the terms and conditions of the SWPPP and agree to implement any corrective actions identified by the qualified inspector during a site inspection. 1 also understand that the owner or operator must comply with the terms and conditions of the New York State Pollutant Discharge Elimination System ("SPDES') general permit for stormwater discharges from construction activities and that it is unlawful for any person to cause or contribute to a violation of water quality standards. Furthermore, 1 understand that certifying false, incorrect or inaccurate information is a violation of the referenced permit and the laws of the State of New York and could subject me to criminal, civil and/or administrative proceeding. Name Title Signature Date Company Name Address City, State, Zip Phone Number L The LA GROUP Landscape Architecture & Engineering P.C. Page 20 1. 2. SWPPP Components You 3. Are Responsible For 4. 5. 6. Name of Trained Individual Responsible for SWPPP Implementation Title Signature of Trained Individual Responsible for SWPPP Implementation Date L The LA GROUP Landscape Architecture & Engineering P.C. Page 20 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 12.0 DEFINITIONS Construction Activity(ies) - means any clearing, grading, excavation, filling, demolition, or stockpiling activities that result in soil disturbance. Clearing activities can include, but are not limited to, logging equipment operation, the cutting and skidding of trees, tree removal, stump removal and/or brush removal. Construction activity does not include routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of a facility. Construction Phasing Plan - a plan designed to construct particular portions of an individual project at different times. Phasing is often used when a project is very large to limit the disturbance at a single time to 5 acres per phase. Erosion and Sediment Control Practices — temporary measures installed prior to construction and maintained during construction to temporarily treat any stormwater runoff. Once construction is completed and post -construction stormwater management practices are installed and the site is stabilized, the erosion and sediment control practices are removed from the site. Final Stabilization - means that all soil disturbance activities have ceased and a uniform, perennial vegetative cover with a density of eighty (80) percent over the entire pervious surface has been established; or other equivalent stabilization measures, such as permanent landscape mulches, rock rip -rap or washed/crushed stone have been applied on all disturbed areas that are not covered by permanent structures, concrete pavement. Green Infrastructure — in the context of stormwater management, the term green infrastructure includes a wide array of practices at multiple scales to manage and treat stormwater, maintain and restore natural hydrology and ecological function by infiltration, evapotranspiration, capture and reuse of stormwater, and establishment of natural vegetative features. On a regional scale, green infrastructure is the preservation and restoration of natural landscape features, such as forests, floodplains and wetlands, coupled with policies such as infill and redevelopment that reduce overall imperviousness in a watershed or ecoregion. On the local scale green infrastructure consist of site and neighborhood specific practices and runoff reduction techniques. Such practices essentially result in runoff reduction and or establishment of habitat areas with significant utilization of soils, vegetation, and engineered media rather than traditional hardscape collection, conveyance and storage structures. Some examples include green roofs, trees and tree boxes, pervious pavement, rain gardens, vegetated swales, planters, reforestation and protection and enhancement of riparian buffers and floodplains. Impervious Area (Cover) - means all impermeable surfaces that cannot effectively infiltrate rainfall. This includes paved, concrete and gravel surfaces (i.e. parking lots, driveways, roads, runways, and sidewalks); building rooftops, and miscellaneous impermeable structures such as patios, pools, and sheds. L The LA GROUP Landscape Architecture & Engineering P.C. Page 21 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 Municipal Separate Storm Sewer (MS4) — a conveyance or system of conveyances (including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains): i. Owned or operated by a state, city, town, borough, county, parish, district, association, or other public body (created by or pursuant to State law) having jurisdiction over disposal of sewage, industrial wastes, stormwater, or other wastes, including special districts under State law such as a sewer district, flood control district or drainage district, or similar entity, or an Indian tribe or an authorized Indian tribal organization, or a designated and approved management agency under section 208 of the CWA that discharges to surface waters of the State. ii. Designed or used for collecting or conveying stormwater iii. Which is not a combined sewer iv. Which is not part of a Publicly Owned Treatment Works (POTW) as defined at 40 CFR 122.2. Notice of Intent — a standardized format notification sent to the NYSDEC to inform them of the proposed activity to be sent after the SWPPP has been completed. Owner or Operator— means the person, persons or legal entity which owns or leases the property on which the construction activity is occurring; and/or an entity that has operational control over the construction plans and specifications, including the ability to make modifications to the plans and specifications. Post -Construction Stormwater Management Practices — permanent devices constructed or installed onsite to treat stormwater from a site when construction is completed. Qualified Inspector — means a person that is knowledgeable in the principles and practices of erosion and sediment control, such as a licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered Landscape Architect, or other Department endorsed individual(s). It can also mean someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided that person has training in the principles and practices of erosion and sediment control. Training in the principles and practices of erosion and sediment control means that the individual working under the direct supervision of the licensed Professional Engineer or Registered Landscape Architect has received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity. After receiving the initial training, the individual working under the direct supervision of the licensed Professional Engineer or Registered Landscape Architect shall receive four (4) hours of training every three (3) years. It can also mean a person that meets the Qualified Professional qualifications in addition to the Qualified Inspector qualifications. Qualified Professional — means a person that is knowledgeable in the principles and practices of stormwater management and treatment, such as a licensed Professional L The LA GROUP Landscape Architecture & Engineering P.C. Page 22 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 Engineer, Registered Landscape Architect or other Department endorsed individual(s). Individuals preparing SWPPPs that require the post -construction stormwater management practice component must have an understanding of the principles of hydrology, water quality management practice design, water quantity control design, and, in many cases, the principles of hydraulics. All components of the SWPPP that involve the practice of engineering, as defined by the NYS Education Law (see Article 145) , shall be prepared by, or under the direct supervision of, a professional engineer licensed of practice in the State of New York. Regulated, Traditional Land Use Control MS4 - means a city, town, or village with land use control authority that is required to gain coverage under New York State DEC's SPDES General Permit for Stormwater Discharges from Municipal Separate Stormwater Sewer Systems (MS4s). Sequence of Operations — the individual steps and their specific order which are undertaken in order to construct a project or a given phase of a project from beginning to end. (i.e. clearing, grading, foundation work, landscaping, etc.) State Pollutant Discharge Elimination System (SPDES) —means the system established pursuant to Article 17 of the Environmental Conservation Law (ECL) and 6 NYCRR Part 750 for issuance of permits authorizing discharges to the waters of the state. Stormwater Pollution Prevention Plan (SWPPP) - a report that is compiled providing detailed information about the proposed activity and the specifics to how the stormwater will be managed during construction and after construction is completed. Surface Waters of the State - shall be construed to include lakes, bays, sounds, ponds, impounding reservoirs, springs, rivers, streams, creeks, estuaries, marshes, inlets, canals, the Atlantic Ocean, within the territorial seas of the state of New York and all other bodies of surface water, natural or artificial, inland or coastal, fresh or salt, public or private (except those private waters that do not combine or effect a junction with natural surface or underground waters), which are wholly or partially within or bordering the state or within its jurisdiction. Waters of the state are further defined in 6 NYCRR Parts 800-941. Temporary Stabilization — means that exposed soil has been covered with material(s) as set forth in the technical standard, New York Standards and Specifications for Erosion and Sediment Control, to prevent the exposed soil from eroding. The materials can include, but are not limited to, mulch, seed and mulch, and erosion control mats (e.g. jute twisted yarn, excelsior wood fiber mats). Trained Contractor —means an employee from a contracting (construction) company responsible for the day to day implementation of the SWPPP. The trained contractor must have received 4 hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other L The LA GROUP Landscape Architecture & Engineering P.C. Page 23 Stormwater Pollution Prevention Plan Flat Rock Parking Garage The LA Group Project # 2018127 Department endorsed entity. After receiving the initial training, the qualified inspector shall receive 4 hours of training every 3 years. It can also mean an employee from the contracting (construction) company that meets the qualified inspector qualifications (e.g. licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered Landscape Architect, or someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided they have received 4 hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity. G:AProj-2018\2018127_Saratoga_City_Center_Flat_Rock_Garage\2018127Enviro\02SWPPP\2018127_SWPPP.docx L The LA GROUP Landscape Architecture & Engineering P.C. Page 24 Appendix A Notice of Intent (NOI) NYSDEC eBusiness Portal System - View Submission Details Owner/Operator Information Owner/Operator Name (Company/Private Owner/Municipality/Agency/Institution, etc.) The City of Saratoga Springs Owner/Operator Contact Person Last Name (NOT CONSULTANT) Veitch Owner/Operator Contact Person First Name Michael Owner/Operator Mailing Address 474 Broadway City Saratoga Springs State NY Zip 12866 Phone 518-587-3550 Email michael.veitch@saratoga-springs.org Federal Tax ID NONE PROVIDED Project Location Project/Site Name Flat Rock Parking Garage Street Address (Not P.O. Box) High Rock Avenue Side of Street West City/Town/Village (THAT ISSUES BUILDING PERMIT) Saratoga Springs State NY Zip 12866 County Page 2 of 13 https:Hnform-prod.dec.ny.gov/SubmissionVersionl59aO7988-caa5-6460-eO53-6868b3860l f7 7/18/2019 NYSDEC eBusiness Portal System - View Submission SARATOGA DEC Region 5 Name of Nearest Cross Street York Street Distance to Nearest Cross Street (Feet) 0 Project In Relation to Cross Street South Tax Map Numbers Section -Block -Parcel 165.52-4-45.1,.2 Tax Map Numbers NONE PROVIDED 1. Coordinates Page 3 of 13 Provide the Geographic Coordinates for the project site. The two methods are: - Navigate to the project location on the map (below) and click to place a marker and obtain the XY coordinates. - The "Find Me" button will provide the lat/long for the person filling out this form. Then pan the map to the correct location and click the map to place a marker and obtain the XY coordinates. Navigate to your location and click on the map to get the X,Y coordinates 43.08420674198879,-73.78245234489441 Project Details 2. What is the nature of this project? Redevelopment with no increase in impervious area 3. Select the predominant land use for both pre and post development conditions. Pre -Development Existing Landuse Parking Lot Post -Development Future Land Use Parking Lot 3a. If Single Family Subdivision was selected in question 3, enter the number of subdivision lots. NONE PROVIDED 4. In accordance with the larger common plan of development or sale, enter the total project site acreage, the acreage to be disturbed and the future impervious area (acreage)within the disturbed area. *** ROUND TO THE NEAREST TENTH OF AN ACRE. * https://nform-prod.dec.ny.gov/SubmissionVersion/59a07988-caa5-6460-e053-6868b3860l f7 7/18/2019 NYSDEC eBusiness Portal System - View Submission Total Site Area (acres) 2.5 Total Area to be Disturbed (acres) 2.5 Existing Impervious Area to be Disturbed (acres) 1.5 Future Impervious Area Within Disturbed Area (acres) 1.5 5. Do you plan to disturb more than 5 acres of soil at any one time? No 6. Indicate the percentage (%) of each Hydrologic Soil Group(HSG) at the site. A (%) 53 B (%) 0 C (%) 47 D (%) 0 7. Is this a phased project? No 8. Enter the planned start and end dates of the disturbance activities. Start Date 04/01/2020 End Date 11/01/2020 9. Identify the nearest surface waterbody(ies) to which construction site runoff will discharge. Unnamed Stream 9a. Type of waterbody identified in question 9? Stream/Creek Off Site Other Waterbody Type Off Site Description NONE PROVIDED Page 4 of 13 https:Hnform-prod.dec.ny.gov/SubmissionVersionl59a07988-caa5-6460-e053-6868b3860l f7 7/18/2019 NYSDEC eBusiness Portal System - View Submission 9b. If "wetland" was selected in 9A, how was the wetland identified? NONE PROVIDED 10. Has the surface waterbody(ies in question 9 been identified as a 303(d) segment in Appendix E of GP -0-15-002? No 11. Is this project located in one of the Watersheds identified in Appendix C of GP -0-15-002? No 12. Is the project located in one of the watershed areas associated with AA and AA -S classified waters? No If No, skip question 13. Page 5 of 13 13. Does this construction activity disturb land with no existing impervious cover and where the Soil Slope Phase is identified as an E or F on the USDA Soil Survey? No If Yes, what is the acreage to be disturbed? NONE PROVIDED 14. Will the project disturb soils within a State regulated wetland or the protected 100 foot adjacent area? No 15. Does the site runoff enter a separate storm sewer system (including roadside drains, swales, ditches, culverts, etc)? Yes 16. What is the name of the municipality/entity that owns the separate storm sewer system? City of Saratoga Springs 17. Does any runoff from the site enter a sewer classified as a Combined Sewer? No 18. Will future use of this site be an agricultural property as defined by the NYS Agriculture and Markets Law? No 19. Is this property owned by a state authority, state agency, federal government or local government? Yes 20. Is this a remediation project being done under a Department approved work plan? (i.e. CERCLA, RCRA, Voluntary Cleanup Agreement, etc.) No Required SWPPP Components 21. Has the required Erosion and Sediment Control component of the SWPPP been developed in conformance with the current NYS Standards and Specifications for Erosion and Sediment Control (aka Blue Book)? Yes 22. Does this construction activity require the development of a SWPPP that includes the post -construction stormwater management practice component (i.e. Runoff Reduction, Water Quality and Quantity Control practices/techniques)? https:Hnform-prod.dec.ny.gov/SubmissionVersionl59a07988-caa5-6460-e053-6868b3860l f7 7/18/2019 NYSDEC eBusiness Portal System - View Submission Page 6 of 13 Yes If you answered No in question 22, skip question 23 and the Post -construction Criteria and Post -construction SMP Identification sections. 23. Has the post -construction stormwater management practice component of the SWPPP been developed in conformance with the current NYS Stormwater Management Design Manual? Yes 24. The Stormwater Pollution Prevention Plan (SWPPP) was prepared by: Professional Engineer (P.E.) SWPPP Preparer The LA Group Contact Name (Last, Space, First) Heller Douglas Mailing Address 40 Long Alley City Saratoga Springs NY 12866 Phone 5185878100 dheller@thelagroup.com Download SWPPP Preparer Certification Form Please take the following steps to prepare and upload your preparer certification form: 1) Click on the link below to download a blank certification form 2) The certified SWPPP preparer should sign this form 3) Scan the signed form 4) Upload the scanned doc Download SWPPP Preparer Certification Form Please upload the SWPPP Preparer Certification - Attachment NONE PROVIDED Comment: NONE PROVIDED Erosion & Sediment Control Criteria 25. Has a construction sequence schedule for the planned management practices been prepared? Yes 26. Select all of the erosion and sediment control practices that will be employed on the project site: Temporary Structural https://nform-prod.dec.ny.gov/SubmissionVersion/59a07988-caa5-6460-e053-6868b3860l f7 7/18/2019 NYSDEC eBusiness Portal System - View Submission Silt Fence Stabilized Construction Entrance Storm Drain Inlet Protection Biotechnical None Vegetative Measures Mulching Seeding Sodding Topsoiling Permanent Structural Land Grading Retaining Wall Other NONE PROVIDED Post -Construction Criteria * IMPORTANT: Completion of Questions 27-39 is not required if response to Question 22 is No. 27. Identify all site planning practices that were used to prepare the final site plan/layout for the project. Reduction of Clearing and Grading Page 7 of 13 27a. Indicate which of the following soil restoration criteria was used to address the requirements in Section 5.1.6("Soil Restoration") of the Design Manual (2010 version). All disturbed areas will be restored in accordance with the Soil Restoration requirements in Table 5.3 of the Design Manual (see page 5-22). 28. Provide the total Water Quality Volume (WQv) required for this project (based on final site plan/layout). (Acre-feet) 0.102 29. Post -construction SMP Identification Use the Post -construction SMP Identification section to identify the RR techniques (Area Reduction), RR techniques(Volume Reduction) and Standard SMPs with RRv Capacity that were used to reduce the Total WQv Required (#28). Identify the SMPs to be used by providing the total impervious area that contributes runoff to each technique/practice selected. For the Area Reduction Techniques, provide the total contributing area (includes pervious area) and, if applicable, the total impervious area that contributes runoff to the technique/practice. Note: Redevelopment projects shall use the Post -Construction SMP Identification section to identify the SMPs used to treat and/or reduce the WQv required. If runoff reduction techniques will not be used to reduce the required WQv, skip to question 33a after identifying the SM 30. Indicate the Total RRv provided by the RR techniques (Area/Volume Reduction) and Standard SMPs with RRv capacity identified in question 29. (acre-feet) 0 31. Is the Total RRv provided (#30) greater than or equal to the total WQv required (#28)? No https://nform-prod.dec.ny.gov/SubmissionVersion/59aO7988-caa5-6460-eO53-6868b3860l f7 7/18/2019 NYSDEC eBusiness Portal System - View Submission If Yes, go to question 36. If No, go to question 32. 32. Provide the Minimum RRv required based on HSG. [Minimum RRv Required = (P) (0.95) (Ai) / 12, Ai=(s) (Aic)] (acre-feet) 0 32a. Is the Total RRv provided (#30) greater than or equal to the Minimum RRv Required (#32)? Yes If Yes, go to question 33. Page 8of13 Note: Use the space provided in question #39 to summarize the specific site limitations and justification for not reducing 100% of WQv required (#28). A detailed evaluation of the specific site limitations and justification for not reducing 100% of the WQv required (#28) must also be included in the SWPPP. If No, sizing criteria has not been met; therefore, NOI can not be processed. SWPPP preparer must modify design to meet sizing criteria. 33. SMPs Use the Post -construction SMP Identification section to identify the Standard SMPs and, if applicable, the Alternative SMPs to be used to treat the remaining total WQv (=Total WQv Required in #28 - Total RRv Provided in #30). Also, provide the total impervious area that contributes runoff to each practice selected. NOTE: Use the Post -construction SMP Identification section to identify the SMPs used on Redevelopment proje 33a. Indicate the Total WQv provided (i.e. WQv treated) by the SMPs identified in question #33 and Standard SMPs with RRv Capacity identified in question #29. (acre-feet) 0.106 Note: For the standard SMPs with RRv capacity, the WQv provided by each practice = the WQv calculated using the contributing drainage area to the practice - provided by the practice. (See Table 3.5 in Design Manual) 34. Provide the sum of the Total RRv provided (#30) and the WQv provided (#33a). 0.106 35. Is the sum of the RRv provided (#30) and the WQv provided (#33a) greater than or equal to the total WQv required (#28)? Yes If Yes, go to question 36. If No, sizing criteria has not been met; therefore, NOI can not be processed. SWPPP preparer must modify design to meet sizing criteria 36. Provide the total Channel Protection Storage Volume (CPv required and provided or select waiver (#36a), if applicable. CPv Required (acre-feet) NONE PROVIDED CPv Provided (acre-feet) NONE PROVIDED 36a. The need to provide channel protection has been waived because: Reduction of the total CPv is achieved on site through runoff reduction techniques or infiltration systems. 37. Provide the Overbank Flood (Qp) and Extreme Flood (Qf) control criteria or select waiver (#37a), if applicable. Overbank Flood Control Criteria (Qp) https://nform-prod.dec.ny.gov/SubmissionVersion/59aO7988-caa5-6460-eO53-6868b3860l f7 7/18/2019 NYSDEC eBusiness Portal System - View Submission Pre -Development (CFS) 12.61 Post -Development (CFS) 12.25 Total Extreme Flood Control Criteria (Qf) Pre -Development (CFS) 21.73 Post -Development (CFS) 20.91 37a. The need to meet the Qp and Qf criteria has been waived because: 38. Has a long term Operation and Maintenance Plan for the post -construction stormwater management practice(s) been developed? Yes If Yes, Identify the entity responsible for the long term Operation and Maintenance City of Saratoga Springs Page 9 of 13 39. Use this space to summarize the specific site limitations and justification for not reducing 100% of WQv required (#28). (See question #32a) This space can also be used for other pertinent project information. The full WQv is not reduced due to poor soils on site. Post -Construction SMP Identification Runoff Reduction (RR) Techniques, Standard Stormwater Management Practices (SMPs) and Alternative SMPs Identify the Post -construction SMPs to be used by providing the total impervious area that contributes runoff to each technique/practice selected. For the Area Reduction Techniques, provide the total contributing area (includes pervious area) and, if applicable, the total impervious area that contributes runoff to the technique/practice. RR Techniques (Area Reduction) Round to the nearest tenth Total Contributing Acres for Conservation of Natural Area (RR -1) NONE PROVIDED Total Contributing Impervious Acres for Conservation of Natural Area (RR -1) NONE PROVIDED Total Contributing Acres for Sheetflow to Riparian Buffers/Filter Strips (RR -2) NONE PROVIDED Total Contributing Impervious Acres for Sheetflow to Riparian Buffers/Filter Strips (RR -2) NONE PROVIDED https://nform-prod.dec.ny.gov/SubmissionVersion/59a07988-caa5-6460-e053-6868b3860l f7 7/18/2019 NYSDEC eBusiness Portal System - View Submission Standard SMPs Total Contributing Impervious Acres for Micropool Extended Detention (P-1) NONE PROVIDED Total Contributing Impervious Acres for Wet Pond (P-2) NONE PROVIDED Total Contributing Impervious Acres for Wet Extended Detention (P-3) NONE PROVIDED Total Contributing Impervious Acres for Multiple Pond System (P-4) NONE PROVIDED Total Contributing Impervious Acres for Pocket Pond (P-5) NONE PROVIDED Total Contributing Impervious Acres for Surface Sand Filter (F-1) NONE PROVIDED Total Contributing Impervious Acres for Underground Sand Filter (F-2) NONE PROVIDED Total Contributing Impervious Acres for Perimeter Sand Filter (F-3) NONE PROVIDED Total Contributing Impervious Acres for Organic Filter (F-4) NONE PROVIDED Total Contributing Impervious Acres for Shallow Wetland (W-1) NONE PROVIDED Total Contributing Impervious Acres for Extended Detention Wetland (W-2) NONE PROVIDED Total Contributing Impervious Acres for Pond/Wetland System (W-3) NONE PROVIDED Total Contributing Impervious Acres for Pocket Wetland (W-4) NONE PROVIDED Total Contributing Impervious Acres for Wet Swale (0-2) NONE PROVIDED Alternative SMPs (DO NOT INCLUDE PRACTICES BEING USED FOR PRETREATMENT ONLY) Total Contributing Impervious Area for Hydrodynamic 1.2 Total Contributing Impervious Area for Wet Vault Page 11 of 13 https:Hnform-prod.dec.ny.gov/SubmissionVersionl59aO7988-caa5-6460-eO53-6868b3860l f7 7/18/2019 NYSDEC eBusiness Portal System - View Submission NONE PROVIDED Total Contributing Impervious Area for Media Filter NONE PROVIDED "Other" Alternative SMP? NONE PROVIDED Total Contributing Impervious Area for "Other, NONE PROVIDED Provide the name and manufaturer of the alternative SMPs (i.e. proprietary practice(s)) being used for WQv treatment. Page 12 of 13 Note: Redevelopment projects which do not use RR techniques, shall use questions 28, 29, 33 and 33a to provide SMPs used, total WQv required and total WQv provided for the project. Manufacturer of Alternative SMP NONE PROVIDED Name of Alternative SMP NONE PROVIDED Other Permits 40. Identify other DEC permits, existing and new, that are required for this project/facility. None If SPDES Multi -Sector GP, then give permit ID NONE PROVIDED If Other, then identify NONE PROVIDED 41. Does this project require a US Army Corps of Engineers Wetland Permit? 10 re If "Yes," then indicate Size of Impact, in acres, to the nearest tenth NONE PROVIDED 42. If this NOI is being submitted for the purpose of continuing or transferring coverage under a general permit for stormwater runoff from construction activities, please indicate the former SPDES number assigned. NONE PROVIDED MS4 SWPPP Acceptance 43. Is this project subject to the requirements of a regulated, traditional land use control MS4? Yes - Please attach the MS4 Acceptance form below If No, skip question 44 44. Has the "MS4 SWPPP Acceptance" form been signed by the principal executive officer or ranking elected official and submitted along with this NOI? https://nform-prod.dec.ny.gov/SubmissionVersion/59aO7988-caa5-6460-eO53-6868b3860l f7 7/18/2019 NYSDEC eBusiness Portal System - View Submission MS4 SWPPP Acceptance Form Download Download form from the link below. Complete, sign, and upload. MS4 SWPPP Acceptance Form MS4 Acceptance Form Upload - Attachment NONE PROVIDED Comment: NONE PROVIDED Owner/Operator Certification Owner/Operator Certification Form Download Download the certification form by clicking the link below. Complete, sign, scan, and upload the form. Owner/Operator Certification Form (PDF, 45KB) Upload Owner/Operator Certification Form * - Attachment NONE PROVIDED Comment: NONE PROVIDED Attachments Date Attachment Name None Status History Date User None Processing Steps Step Name Form Submitted Deemed Complete Processing Status Assigned To/Completed By Toni Cioffi Context Date Completed Page 13 of 13 https://nform-prod.dec.ny.gov/SubmissionVersion/59aO7988-caa5-6460-eO53-6868b3860l f7 7/18/2019 Appendix B Stormwater Management Report Hydro CAD CI The LA GROUP Landscape Architecture & Engineering F.C. 40 Long Alley p: 518-587-8100 Saratoga Springs f 518-587-0180 NY 12866 www.thelagi-oLip.com Stormwater Management Report for: Flat Rock Parking Garage at High Rock Avenue Saratoga Springs, NY 12866 Saratoga County Owner/Operator(s): Saratoga Springs City Center 522 Broadway Saratoga Springs, NY 12020 SWM Report Contact(s): The LA Group, PC 40 Long Alley Saratoga Springs, NY 12866 1-518-587-8100 Project No. 2017002 Preparation Date: July 10', 2019 Stormwater Management Report Flat Rock Parking Garage 2018127 Table of Contents 1.0 INTRODUCTION.................................................................................................................4 2.0 PROJECT DESCRIPTION.................................................................................................4 2.1 SITE LOCATION....................................................................................................................4 2.2 PROJECT DESCRIPTION.........................................................................................................4 2.3 SOIL CONDITIONS/SOIL TESTING.........................................................................................4 2.4 CURVE NUMBERS AND RAINFALL DATA.............................................................................. 5 3.0 EXISTING CONDITIONS..................................................................................................5 4.0 PROPOSED CONDITIONS................................................................................................5 5.0 NYSDEC DESIGN CRITERIA...........................................................................................6 5.1 SITE PLANNING TO PRESERVE NATURAL FEATURES............................................................% 5.2 WATER QUALITY VOLUME (WQV) ......................................................................................5 5.3 RUNOFF REDUCTION VOLUME (RRV) ..................................................................................9 5.4 CHANNEL PROTECTION VOLUME (CPV) ..............................................................................9 5.5 OVERBANK FLOOD (QP) AND EXTREME FLOOD (QF) ATTENUATION...................................9 6.0 PROPOSED STORMWATER FACILITIES....................................................................9 6.1 TREATMENT.........................................................................................................................9 7.0 POST -CONSTRUCTION MAINTENANCE REQUIREMENTS...................................9 7.0 REFERENCES....................................................................................................................11 Stormwater Management Report Attachment A Soil Investigations Soil Survey Natural Resource Map Flat Rock Parking Garage 2018127 B Existing Conditions Watershed Map and HydroCAD Calculations C Proposed Conditions Watershed Map & HydroCAD Calculations D Storm Data Stormwater Management Report 1.0 INTRODUCTION Flat Rock Parking Garage 2018127 The following is a Stormwater Management Report (SWM Report) developed for the Operator, The City of Saratoga Springs, herein referred to as the "Project." It is prepared in accordance with the New York State Department of Environmental Conservation (NYSDEC) Stormwater Management Design Manual, dated January, 2015. The Project has been designed in accordance with Chapter 4 of the NYSDEC Stormwater Management Design Manual (SWMDM), and NYSDEC's General Permit GP -0-15-002 for construction activities. Stormwater calculations were performed utilizing widely accepted engineering methodologies, including TR -55, and the stormwater modeling computer program HydroCAD (version 10.00) produced by HydroCAD Software Solutions, LLC. 2.0 PROJECT DESCRIPTION 2.1 Site Location The Project is located off High Rock Avenue in Saratoga Springs, Saratoga County, NY 12866. Access to the site is off of either High Rock Avenue or Maple Avenue. 2.2 Project Description The Project includes the construction of a multi -deck parking garage. The remainder of the proposed site improvements include awnings and facilities for the High Rock Farmer's Market, site lighting, landscaping, stormwater controls and connections to municipal water and sewer. This project is considered a redevelopment project and has been designed in accordance with Chapter 9 of the NYSDEC Stormwater Management Design Manual and NYSDEC's General Permit (GP -0-15-002) for construction activities. 2.3 Soil Conditions/Soil Testing According to the Natural Resources Conservation Service (NRCS) Web Soil Survey, the area including and surrounding the Project Site is comprised of Deerfield loamy sand and Windsor loamy sand. The hydrological soil group classification for this type of soil is 'A'. A portion of the site is also comprised of Galway loam, which has a hydrological soil group classification of `U. katm= The LA GROUP Landscape Architecture & Engineering P.C. M Stormwater Management Report 2.4 Curve Numbers and Rainfall Data Flat Rock Parking Garage 2018127 The surface cover for the project area is grass and an impervious parking lot. The curve numbers utilized in the modeling were assigned based on cover type and HSG soil classification. The design storms used for the pre -development versus post -development comparison were the 11 10, and 100 -year, 24-hour duration, SCS Type II events. The rainfall amounts for these storms are 2.15, 3.75, and 6.20 inches, respectively. 3.0 EXISTING CONDITIONS The Project area existing condition, for which this stormwater management plan is based, consists of an existing parking lot, sidewalk, and grass islands. Stormwater is directed to existing infrastructure along High Rock Avenue, which drains to the box culvert which runs beneath High Rock Avenue (Analysis Point 1). Analysis Point 1 was utilized in comparing all pre- versus post -runoff conditions. Refer to drawing "W-1 Existing Conditions Watershed Map," located in Attachment B for more information. Table 3-1 below provides a summary of the existing conditions peak discharge rates for the Project's watershed. Table 3-1 Existing Conditions Peak Discharge Rates Analysis AP -1 Point Design Storm (Cfs) 10 -Year 12.61 100 -Year 21.73 Refer to Attachment B for more information on the existing conditions watershed modeling. 4.0 PROPOSED CONDITIONS Under the watershed's Proposed Condition, stormwater from the Project will continue to discharge to the same points as in the Existing Condition (Analysis Point 1). The total watershed has generally remained unchanged, as is shown on the drawing "W-2 Proposed Conditions Watershed Map" contained in Attachment C. To meet NYSDEC requirements (see Section 5.0 NYSDEC Design Criteria of this report) a hydrodynamic separator has been incorporated into the stormwater management design to mitigate the quality of stormwater runoff discharged from the Project Site. kalum The LA GROUP Landscape Architecture & Engineering P.C. 5 Stormwater Management Report Flat Rock Parking Garage 2018127 Table 4-1 below provides a summary of the existing conditions versus proposed conditions peak discharge rates for the Project's watershed. Table 4-1 Existing Conditions Versus Proposed Conditions Peak Discharge Rates Analysis AP -1 Point Existing Proposed Design Storm (Cfs) (Cfs) 10 -Year 12.61 12.25 100 -Year 21.72 20.91 Refer to Attachment C for more information on the proposed conditions watershed modeling. 5.0 NYSDEC DESIGN CRITERIA The New York State Stormwater Management Design Manual, dated January 2015 (The Manual) has been utilized to develop the stormwater management plan. The Manual includes a five-step process that involves site planning and stormwater management practice selection. The five steps include; • Site planning to preserve natural features and reduce impervious cover, • Calculation of the Water Quality Volume (WQv) for the Site, • Incorporation of green infrastructure techniques and standard SMPs with Runoff Reduction Volume (RRv) capacity, • Use of standard SMPs where applicable, to treat the portion of WQv not addressed by green infrastructure techniques and standard SMPs with RRv capacity, and • Design of volume and peak rate control (where required) The approach of the stormwater management plan was to address the stormwater requirements separately. The five steps were reduced to Site Planning to Preserve Natural Features, Water Quality Volume, Runoff Reduction Volume, Channel Protection Volume, and Overbank Flood and Extreme Storm Attenuation, as discussed in the following sections. Attachment D of this report contains detailed calculations for determining and summarizing the required and provided volumes for Water Quality and Runoff Reduction. In general, the required design criteria (WQv and RRv) were calculated for all areas where site disturbance or green infrastructure techniques are proposed. katm= The LA GROUP Landscape Architecture & Engineering P.C. Stormwater Management Report 5.1 Site Planning to Preserve Natural Features Flat Rock Parking Garage 2018127 Within Chapter 3 of The Manual, Table 3.1 Green Infrastructure Planning General Categories and Specific Practices includes a list of planning practices utilized in the planning and design of a project. There are two categories, Preservation of Natural Resources and Reduction of Imperious Cover. Preservation of Natural Resources includes: • Preservation of Undisturbed Areas • Preservation of Buffers • Reduction of Clearing and Grading • Locating Development in Less Sensitive Areas • Open Space Design • Soil Restoration Reduction of Impervious Cover includes: • Roadway Reduction • Sidewalk Reduction • Driveway Reduction • Cul-de-sac Reduction • Building Footprint Reduction • Parking Reduction A Natural Resource Map for Green Infrastructure Planning has been developed which indicates natural resource areas and critical environmental areas to be protected (where feasible). As required in Section 3.6 of The Manual, the map includes (where applicable): • Jurisdictional Wetlands o There are no wetlands located near the project site. • Waterways o No waterways are impacted by the Project. • Wetland Adjacent Area o There are no wetlands located near the project site. impact NYSDEC wetland buffer areas. • Floodplains o The project is not within the flood plain. • Forest, vegetative cover o No woods will be impacted by the Project. The development does not • Topography/Steep slopes o Steep slopes are located along the southern portion of the site. kalum The LA GROUP Landscape Architecture & Engineering P.C. 7 Stormwater Management Report Flat Rock Parking Garage 2018127 • Existing soils, including hydrologic soil groups and soil erodibility o See Section 2.3 of this Report. • Drainage Patterns o See Section 3.0 of this Report. • Bedrock/Significant geological features o See Section 2.3 of this Report. The Natural Resource Plan indicates the areas to be avoided and depicts the area most suitable for development. 5.2 Water Quality Volume (WQv) The Water Quality Volume (WQv) requirement is designed to improve water quality sizing to capture and treat 90% of the average annual stormwater runoff volumes. The WQv is directly related to the amount of impervious cover created at a site. The following equation is used to determine the water quality storage volume. WQv = P Rv A 12 Where: WQv = Water quality volume (acre/feet) P = 90% Rainfall Event (1.15" for Saratoga Springs) Rv = 0.05 + 0.009(I) where I is percent impervious cover A = Site area in acres The required WQv will be provided by a hydrodynamic separator designed in accordance with the SWMDM. The total required WQv for the project is 0.102 ac -ft. Refer to Table 5-1 for a summary of the provided water quality volumes for the Project. Table 5-1 Water Quality Volume WQv Summar SMP Type Provided (ac -ft) SMP1 Hydrodynamic Separator 0.106 TOTAL 0.106 Refer to Attachment D for detailed WQv calculations. katm= The LA GROUP Landscape Architecture & Engineering P.C. N Stormwater Management Report 5.3 Runoff Reduction Volume (RRv) Flat Rock Parking Garage 2018127 The project proposed an overall reduction in impervious area and therefore RRv is not required for the project. 5.4 Channel Protection Volume (CPv) The project proposed an overall reduction in impervious area and therefore CPv is not required for the project. 5.5 Overbank Flood (Qp) and Extreme Flood (Qf) Attenuation The primary purpose of the Overbank Flood (Qp) control sizing criterion is to prevent an increase in the frequency and magnitude of out -of -bank flooding generated by urban development. It requires storage and attenuation of the 10 -year, 24-hour storm to ensure post - development peak discharge rates do not exceed the pre -development condition. The intent of the Extreme Flood (Qf) criteria is to (a) prevent the increased risk of flood damage from large storm events, (b) maintain the boundaries of the pre -development 100 -year floodplain, and (c) protect the physical integrity of stormwater management practices. It requires storage and attenuation of the 100 -year, 24-hour storm to ensure post -development peak discharge rates do not exceed the pre -development condition. During the 10 -year and 100 -year 24-hour storm the post -development peak discharge rates do not exceed the pre -development rates. See Table 4-1 of this Report for detailed comparison of pre- and post -development peak rates. 6.0 PROPOSED STORMWATER FACILITIES The Project is proposing the installation of a hydrodynamic separator to address stormwater requirements for the project. The hydrodynamic separator has been indicated on the plans and HydroCAD reports as SMP -1 and is located centrally along the site frontage on High Rock Avenue. 6.1 Treatment Treatment for runoff entering hydrodynamic separator is provided by capturing and treating the WQv through the swirl chamber. 7.0 POST -CONSTRUCTION MAINTENANCE REQUIREMENTS katm= The LA GROUP Landscape Architecture & Engineering P.C. Z Stormwater Management Report Flat Rock Parking Garage 2018127 The City of Saratoga Springs will be responsible for the continuous upkeep and maintenance of all stormwater management facilities. Maintenance includes, but is not limited to, cleaning of sediment from drainage inlet sumps, removal of sediment from SMPs, cleaning conveyance piping and channels of obstructions, inspection and repair as required of any outlet control mechanisms, and repairing any other detriments in the design that is resulting in the facilities to not function as intended in the design. katm= The LA GROUP Landscape Architecture & Engineering P.C. 10 Stormwater Management Report 7.0 REFERENCES Flat Rock Parking Garage 2018127 1. Urban Hydrology for Small Watersheds. Published by the U.S. Soil Conservation Service, Washington, D.C., June 1986. 2. HydroCAD 10.00 Computer Program, by HydroCAD Software Solutions, LLC. 3. NYSDEC Stormwater Management Design Manual. Published by the New York State Department of Environmental Conservation, Updated January 2015. G:\Proj-2018\2018127_Saratoga_City_Center_Flat_Rock_Garage\2018127Enviro\02SWPPP\2018127_SWM Report.doc katm= The LA GROUP Landscape Architecture & Engineering P.C. 11 USDA United States Department of - Agriculture N RCS Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Saratoga County, New York April 30, 2019 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http-//www.nres.usda.gov/wps/ portal/nres/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https-//offices.sc.egov.usda.gov/locator/app?agency=nres) or your NRCS State Soil Scientist (http-//www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/? cid=nres142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface.................................................................................................................... 2 HowSoil Surveys Are Made..................................................................................5 SoilMap.................................................................................................................. 8 SoilMap................................................................................................................9 Legend................................................................................................................10 MapUnit Legend................................................................................................ 11 MapUnit Descriptions.........................................................................................11 SaratogaCounty, New York............................................................................13 DeA Deerfield loamy fine sand, 0 to 3 percent slopes..............................13 GaB Galway loam, 3 to 8 percent slopes ................................................. 14 WnC Windsor loamy sand, 8 to 15 percent slopes...................................15 References............................................................................................................18 4 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses. Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil -vegetation -landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries. Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil 5 Custom Soil Resource Report scientists classified and named the soils in the survey area, they compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components, the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil -landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil -landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field -observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and 0 Custom Soil Resource Report identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. 7 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 0 n 0 (y) n 598970 430 5'8" N — 599010 1 � M jet Custom Soil Resource Report Soil Map 599050 599090 WnC 599130 1 ti Soil Map may not be valid at this scale. 8 CD 430 4 57" N 598970 599010 599050 599090 599130 Map Scale: 1:1,590 if printed on A portrait (8.5" x 11") sheet. N Meters 0 20 40 80 120 Feet 0 50 100 200 300 Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 9 Ln 0 (yl n 599170 599210 43° 5' 8" N i ~ i w F' ti 599170 — —o 43° 4 57" N 599210 Ln L�1 0 MAP LEGEND Area of Interest (AOI) Area of Interest (AOI) Soils 0 Soil Map Unit Polygons N Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip oa Sodic Spot Custom Soil Resource Report Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background a Aerial Photography 10 MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Saratoga County, New York Survey Area Data: Version 18, Sep 3, 2018 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jun 10, 2015—Mar 29, 2017 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Custom Soil Resource Report Map Unit Legend Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or 11 Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI DeA Deerfield loamy fine sand, 0 to 3 percent slopes 2.9 54.7% GaB Galway loam, 3 to 8 percent slopes 1.8 33.3% WnC Windsor loamy sand, 8 to 15 percent slopes 0.6 11.9% Totals for Area of Interest 5.3 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or 11 Custom Soil Resource Report landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha -Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 12 Custom Soil Resource Report Saratoga County, New York DeA—Deerfield loamy fine sand, 0 to 3 percent slopes Map Unit Setting National map unit symbol: 2xfg8 Elevation. 0 to 1,100 feet Mean annual precipitation. 36 to 71 inches Mean annual air temperature. 39 to 55 degrees F Frost -free period. 145 to 240 days Farmland classification: Farmland of statewide importance Map Unit Composition Deerfield and similar soils. 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Deerfield Setting Landform: Outwash deltas, outwash terraces, kame terraces, outwash plains Landform position (three-dimensional). Tread Down-slope shape. Concave, convex, linear Across -slope shape. Linear, convex, concave Parent material. Sandy outwash derived from granite, gneiss, and/or quartzite Typical profile Ap - 0 to 9 inches: loamy fine sand Bw - 9 to 25 inches. loamy fine sand BC - 25 to 33 inches. fine sand Cg - 33 to 60 inches. sand Properties and qualities Slope. 0 to 3 percent Depth to restrictive feature. More than 80 inches Natural drainage class. Moderately well drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat). Moderately high to very high (1.42 to 99.90 in/hr) Depth to water table. About 15 to 37 inches Frequency of flooding: None Frequency of ponding: None Salinity, maximum in profile: Nonsaline (0.0 to 1.9 mmhos/cm) Sodium adsorption ratio, maximum in profile: 11.0 Available water storage in profile. Moderate (about 6.5 inches) Interpretive groups Land capability classification (irrigated). None specified Land capability classification (nonirrigated): 2w Hydrologic Soil Group: A Hydric soil rating. No Minor Components Windsor Percent of map unit. 7 percent 13 Custom Soil Resource Report Landform: Kame terraces, outwash terraces, outwash plains, outwash deltas Landform position (three-dimensional): Tread Down-slope shape. Convex, linear, concave Across -slope shape. Concave, linear, convex Hydric soil rating. No Wareham Percent of map unit. 5 percent Landform: Depressions, drainageways Down-slope shape. Concave Across -slope shape. Concave Hydric soil rating. Yes Sudbury Percent of map unit. 2 percent Landform: Outwash terraces, outwash deltas, kame terraces, outwash plains Landform position (three-dimensional): Tread Down-slope shape. Convex, linear, concave Across -slope shape. Concave, linear, convex Hydric soil rating. No Ninigret Percent of map unit. 1 percent Landform: Outwash terraces, outwash plains, kame terraces Landform position (three-dimensional): Tread Down-slope shape. Linear, convex Across -slope shape. Concave, convex Hydric soil rating. No GaB—Galway loam, 3 to 8 percent slopes Map Unit Setting National map unit symbol. 9wb1 Elevation. 150 to 1, 000 feet Mean annual precipitation. 36 to 48 inches Mean annual air temperature. 45 to 48 degrees F Frost -free period. 125 to 160 days Farmland classification: All areas are prime farmland Map Unit Composition Galway and similar soils. 65 percent Minor components: 35 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Galway Setting Landform: Benches, ridges, till plains Landform position (two-dimensional). Summit Landform position (three-dimensional): Crest Down-slope shape. Concave 14 Custom Soil Resource Report Map Unit Composition Windsor and similar soils. 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Windsor Setting Landform: error in exists on Landform position (two-dimensional). Summit, shoulder, backslope Landform position (three-dimensional): Side slope, riser Down-slope shape. Convex Across -slope shape. Linear, convex Parent material. Loose sandy glaciofluvial deposits derived from granite and/or loose sandy glaciofluvial deposits derived from schist and/or loose sandy glaciofluvial deposits derived from gneiss Typical profile Oe - 0 to 1 inches. moderately decomposed plant material Ap - 1 to 11 inches. loamy sand Bw - 11 to 31 inches. loamy sand C - 31 to 65 inches: sand Properties and qualities Slope. 8 to 15 percent Depth to restrictive feature: More than 80 inches Natural drainage class. Excessively drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to very high (1.42 to 99.90 in/hr) Depth to water table. More than 80 inches Frequency of flooding: None Frequency of ponding: None Salinity, maximum in profile: Nonsaline (0.0 to 1.9 mmhos/cm) Available water storage in profile. Low (about 4.2 inches) Interpretive groups Land capability classification (irrigated). None specified Land capability classification (nonirrigated): 3e Hydrologic Soil Group: A Hydric soil rating. No Minor Components Hinckley Percent of map unit. 10 percent Landform: Outwash plains, eskers, kames, deltas Landform position (two-dimensional). Summit, shoulder, backslope Landform position (three-dimensional): Crest, head slope, nose slope, side slope, rise Down-slope shape. Convex Across -slope shape. Linear, convex Hydric soil rating. No Deerfield Percent of map unit. 5 percent 16 Custom Soil Resource Report Landform: Terraces, deltas, outwash plains Landform position (two-dimensional). Footslope Landform position (three-dimensional): Tread, talf Down-slope shape. Linear Across -slope shape. Linear Hydric soil rating. No 17 References American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. National Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. http-//www.nres.usda.gov/wps/portal/ nres/detail/national/soils/?cid=nres142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www. nres. usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11 th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www. nres. usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http-//www.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres142p2_053374 United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http-//www.nres.usda.gov/wps/portal/nres/ detail/national/landuse/rangepasture/?cid=stelprdb1043084 18 Custom Soil Resource Report United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 43041. http-//www.nres.usda.gov/wps/portal/ n res/deta i I/soi Is/scientists/?cid= n res 142 p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http-//www.nres.usda.gov/wps/portal/nres/detail/national/soils/? cid= n res 142 p2_053624 United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nres.usda.gov/Internet/FSE_DOCUMENTS/nresl42p2_052290.pdf 19 11R 29_ INE11IINVII-111.11 III III INI IN Tz �T' IN EXISTING PARKING LOT —T TIIII 1A.EL i 1z 269.20- W IINI —IT�IILI ---�VLT' I - — — — — — S—S—S — — — — — — — --- ---4� — — — — — — — — — — — — — — — — — — — — —,IE L121.17 — — — — — — — — — — — — — — — — — — —1.N1D T� — — — — — — — — -- — — — — — — — — Nlli3' "IVN=l �11)16 INV 1-2-11 s --rc — — — — — — — — — — S— LICII.— 2 — — — — — — — — — — — — — — - — — — — — — — — — — — — — — — — — — — 1frGH ROCK AVENUE 1'XI'.ETRTLT'�2.'1'N (66 WIDE INII-OF-WAY) I L R- (I )II INI IN 2-21 INI —INE- ---------------------a S— 1 S— ka. The LA GROUP Landscape AIEW-1— & E.9m11fi.9 P.C. P -P,&. P -,F",. P&— I 3d[dLUyd --)P1111y5 City Center 522 Broadway tial KOCK Parking Garage Saratoga Springs, NY [).", KIT Ch kd DRH Date: 5/6/2019 SAE: III -2c, R,,, D ... ript—: Date: 20 10 0 5 10 15 20 D.awiig title Si,ale1-20' Natural Resource KA— Lym Attachment B Existing Conditions Watershed Map and HydroCAD Calculations o ---------------- - - - - - - - - - - - - - - TI -2-11 TF 2`7INl IN -119.11 1 IVIN-1- IN 'INV OIT-21-I 'T 0 1-11 IN, ux HSG C —T ,z NicuzON IT -1 HOUSE' 2 eo- HSG A 2 ITIFF12)IZ-ION0111-211.1' INIINDN N -N-1., 212 2 I�F�� . ..... C. I 12 6,, S S 5 -S ------ �—S—S—s S----- LICII.N OF I O -LE 110N 1- V H-- - - - - - - - - - - - - - - - - - - - - - - - C, H-RoOrek Aoolz4W 5-misonH TF 1-57 - - - - - - - - - - - - - - - - - INI F11-11F.K. IF - - - - --------- - - - - - - - - - - - -- - - IN --------- FA 7P- 1 "IVN =70` --- !��, S1)16 INV 1-2-11 -s I- - - - - / s s s - - - ±i - - - - - - - - - - - - - - - - - - - - - - - - - LEGEND — — — — SUBCATCHMENT BOUNDARY 1 SUBCATCHMENT ID FAP --1 ANALYSIS POINT ka. The LA GROUP Landscape Architecture & E.9rV11fi.9 P.C. P -P,&. P -,F",. P&- 40 Long Alley P518-587-8100 Saratoga Springs City Center 522 Broadway C-1— C—;— NIV I BPAk Flat Rock Parking Garage Saratoga Springs, NY KIT Ch kd TRH Date: 5/6/2019 -S-k I—, Re, Description D- 21 11 1 1 11 11 21 D.awiig title ScaleV-20' Pre Development Watershed Plan W-1 Sub.,at A �1 1-0 AP� 1 Subcat Reach Aon Link Routing Diagram for Pre Development Prepared by The LA Group, Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Pre Development Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 2 Area Listing (all nodes) Area CN Description (sq -ft) (subcatchment-numbers) 71211 39 >75% Grass cover, Good, HSG A (1) 171921 74 >75% Grass cover, Good, HSG C (1) 571050 98 Paved parking, HSG A (1) 401904 98 Paved parking, HSG C (1) 123,087 91 TOTAL AREA Pre Development Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 3 Soil Listing (all nodes) Area Soil Subcatchment (sq -ft) Group Numbers 641261 HSG A 1 0 HSG B 581825 HSG C 1 0 HSG D 0 Other 123,087 TOTAL AREA Pre Development Prepared by The LA Group HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Printed 7/10/2019 Page 4 Ground Covers (all nodes) HSG -A HSG -B HSG -C HSG -D Other Total Ground Sub (sq -ft) (sq -ft) (sq -ft) (sq -ft) (sq -ft) (sq -ft) Cover N u n 71211 0 171921 0 0 251132 >75% Grass cover, Good 571050 0 401904 0 0 971955 Paved parking 645261 0 585825 0 0 123,087 TOTAL AREA Pre Development Type// 24 -hr 1 yr Rainfall=2.15" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 6 Summary for Subcatchment 1: Subcat 1 Runoff = 6.81 cfs @ 11.96 hrs, Volume= 163101 cf, Depth> 1.57" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type 11 24 -hr 1 yr Rainfall=2.15" Area (sf) CN Description 71211 39 >75% Grass cover, Good, HSG A 17,921 74 >75% Grass cover, Good, HSG C 57,050 98 Paved parking, HSG A 40,904 98 Paved parking, HSG C 1231087 Weighted Average 25,132 20.42% Pervious Area 97,955 79.58% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Link AP -1: AP -1 Inflow Area = 123,087 sf, 79.58% Impervious, Inflow Depth > 1.57" for 1 yr event Inflow = 6.81 cfs @ 11.96 hrs, Volume= 161101 cf Primary = 6.81 cfs @ 11.96 hrs, Volume= 161101 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Pre Development Type 11 24 -hr 10yr Rainfall=3.75" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 7 Time span=5.00-48.00 hrs, dt=0.05 hrs, 861 points Runoff by SCS TR -20 method, UH=SCS, Weighted -Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=123,087 sf 79.58% Impervious Runoff Depth>2.93" Tc=6.0 min C N =WQ Runoff=12.61 cfs 30,088 cf Link AP -1: AP -1 Inflow= 12.61 cfs 30,088 cf Primary=12.61 cfs 30,088 cf Total Runoff Area = 123,087 sf Runoff Volume = 30,088 cf Average Runoff Depth = 2.93" 20.42% Pervious = 25,132 sf 79.58% Impervious = 97,955 sf Pre Development Type 11 24 -hr 10yr Rainfall=3.75" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 8 Summary for Subcatchment 1: Subcat 1 Runoff = 12.61 cfs @ 11.96 hrs, Volume= 30,088 cf, Depth> 2.93" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24 -hr 10yr Rainfall=3.75" Area (sf) CN Description 71211 39 >75% Grass cover, Good, HSG A 17,921 74 >75% Grass cover, Good, HSG C 57,050 98 Paved parking, HSG A 40,904 98 Paved parking, HSG C 1231087 Weighted Average 25,132 20.42% Pervious Area 97,955 79.58% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Link AP -1: AP -1 Inflow Area = 123,087 sf, 79.58% Impervious, Inflow Depth > 2.93" for 10yr event nflow = 12.61 cfs @ 11.96 hrs, Volume= 301088 cf Primary = 12.61 cfs @ 11.96 hrs, Volume= 301088 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Pre Development Type 11 24 -hr 100yr Rainfall= 6.20" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 1 Time span=5.00-48.00 hrs, dt=0.05 hrs, 861 points Runoff by SCS TR -20 method, UH=SCS, Weighted -Q Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=123,087 sf 79.58% Impervious Runoff Depth>5.09" Tc=6.0 min C N =WQ Runoff=21.73 cfs 52,254 cf Link AP -1: AP -1 Inflow=21.73 cfs 52,254 cf Primary=21.73 cfs 52,254 cf Total Runoff Area = 123,087 sf Runoff Volume = 52,254 cf Average Runoff Depth = 5.09" 20.42% Pervious = 25,132 sf 79.58% Impervious = 97,955 sf Pre Development Type 11 24 -hr 100yr Rainfall= 6.20" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 2 Summary for Subcatchment 1: Subcat 1 Runoff = 21.73 cfs @ 11.96 hrs, Volume= 52,254 cf, Depth> 5.09" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24 -hr 1 00y Rainfall=6.20" Area (sf) CN Description 71211 39 >75% Grass cover, Good, HSG A 17,921 74 >75% Grass cover, Good, HSG C 57,050 98 Paved parking, HSG A 40,904 98 Paved parking, HSG C 1231087 Weighted Average 25,132 20.42% Pervious Area 97,955 79.58% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Link AP -1: AP -1 Inflow Area = 123,087 sf, 79.58% Impervious, Inflow Depth > 5.09" for 100yr event nflow = 21.73 cfs @ 11.96 hrs, Volume= 52,254 cf Primary = 21.73 cfs @ 11.96 hrs, Volume= 52,254 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Attachment C Proposed Conditions Watershed Map & HydroCAD Calculations wv'uE AVENUE tit, J — — — — — — — — — — - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - -- - -- - - - - - - - -- - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - 79 -------------------- iso 8- - 277 276 - - - - - - - - - ------------ In ------ - RIV2-70.0 - - - - - - - - - - LIE1 - - - ----- - -RU -- - - - - - - - - - CB -,z 1,77, -2TO.5 RIM: 270.0 RIM 270.0 5t — ----- ------------------------------------------- D --------------------- ------------- H IS ----- ---------------------------------------- ---- - I ----- ----- SMP ----------- V-1 ----- ---- -------- --------------------- -------- -12701 - - -C-27-1 S1 S1 It 11v - ------------ - - - - - - - - - - - - - - - - - - - - - - ------ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _269 -- - -- - - - - - - - - - - - - - -- - - - - - - - - TF DMry LICI.- 01 2 —.1 E 110K - - - - - - - - - --- E-4-W — — — — — — — — — -- -- - - - - - - - - - - - - - - - - onH (61 WIDE IIIII DF -1 -------------------- - F- - ------ AP 1 ------------- ------ I -------------- LEGEND 20 10 0 5 10 15 20 — — — — SUBCATCHMENT BOUNDARY 1 SUBCATCHMENT ID FAP --1 ANALYSIS POINT SMP STORMWATER MANAGEMENT PRACTICE ka. 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P&- Ann—Allah -SIR-,.,Rlnn Saratoga �prings City Center 522 Broadway Hat Kock Parking Garage Saratoga Springs, NY D.", KIT Chkd TRH Date: 5/13/2019 Scale: III -2c' Re, Description LE- SI,al� V-20' Post Development Watershed Plan \A/- ATD 3a 3b Subcat 3a Trench Drain Sub at 3b CB CB-1 CB-1 to YD-1 CB 1 D-1 Subcat 1 YD-1 to HS ASM B P-1 5 Hydro namic Subcat 5 Sep rator 2 Subcat 2 AP-1 3 AP-1 Subcat 3 4 Subcat 4 Subcat Reach Z4o n Link Routing Diagram for Post Development Prepared by The LA Group, Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Post Development Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 2 Area Listing (all nodes) Area CN Description (sq -ft) (subcatchment-numbers) 131616 39 >75% Grass cover, Good, HSG A (1, 2, 3, 3a, 3b, 5) 111770 74 >75% Grass cover, Good, HSG C (1, 2, 3, 3a, 4) 501645 98 Paved parking, HSG A (1, 2, 3, 3a, 3b, 5) 471056 98 Paved parking, HSG C (1, 2, 3, 3a, 4) 123,087 89 TOTAL AREA Post Development Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 3 Soil Listing (all nodes) Area Soil Subcatchment (sq -ft) Group Numbers 641261 HSG A 11 21 3, 3a, 3b, 5 0 HSG B 581825 HSG C 1, 2, 3, 3a, 4 0 HSG D 0 Other 123,087 TOTAL AREA Post Development Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 4 Ground Covers (all nodes) HSG -A HSG -B HSG -C HSG -D Other Total Ground Sub (sq -ft) (sq -ft) (sq -ft) (sq -ft) (sq -ft) (sq -ft) Cover N u n 131616 0 111770 0 0 251386 >75% Grass cover, Good 501645 0 471056 0 0 971701 Paved parking 645261 0 585825 0 0 123,087 TOTAL AREA Post Development Type// 24 -hr 1 yr Rainfall=2.15" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 5 Time span=5.00-48.00 hrs, dt=0.05 hrs, 861 points Runoff by SCS TR -20 method, UH=SCS, Weighted -Q Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment1: Subcat 1 Runoff Area=46,521 sf 99.98% Impervious Runoff Depth>1.89" Tc=6.0 min C N =WQ Runoff=3.11 cfs 7,346 cf Subcatchment2: Subcat 2 Runoff Area=22,892 sf 65.49% Impervious Runoff Depth>1.38" Tc=6.0 min CN=WQ Runoff=1.11 cfs 2,628 cf Subcatchment3: Subcat 3 Runoff Area=32,391 sf 64.95% Impervious Runoff Depth>1.25" Tc=6.0 min C N =WQ Runoff=1.42 cfs 3,362 cf Subcatchment3a: Subcat 3a Runoff Area=6,308 sf 43.18% Impervious Runoff Depth>1.01" Tc=6.0 min CN=WQ Runoff=0.22 cfs 531 cf Subcatchment3b: Subcat 3b Runoff Area=1,335 sf 79.36% Impervious Runoff Depth>1.50" Tc=6.0 min CN=WQ Runoff=0.07 cfs 167 cf Subcatchment4: Subcat 4 Runoff Area=10,302 sf 96.31% Impervious Runoff Depth>1.84" Tc=6.0 min CN=WQ Runoff=0.67 cfs 1,580 cf Subcatchment5: Subcat 5 Runoff Area=3,337 sf 43.50% Impervious Runoff Depth>0.82" Tc=6.0 min CN=WQ Runoff=0.10 cfs 229 cf Pond CB -1: CB -1 to YD -1 Peak Elev=266.57' Inflow=0.29 cfs 698 cf 12.0" Round Culvert n=0.013 L=50.0' S=0.00507 Outflow=0.29 cfs 698 cf Pond SMP -1: HydrodynamicSeparator Peak Elev=266.48' Inflow=3.41 cfs 8,045 cf 12.0" Round Culvert n=0.012 L=5.0' S=0.0000'/' Outflow=3.41 cfs 8,045 cf Pond TD: Trench Drain Peak Elev=269.01' Inflow=0.22 cfs 531 cf 8.0" Round Culvert n=0.013 L=43.0' S=0.0558'/' Outflow=0.22 cfs 531 cf Pond YD -1: YD -1 to HS Peak Elev=267.21' Inflow=3.41 cfs 8,045 cf 12.0" Round Culvert n=0.013 L=74.0' S=0.0122'/' Outflow=3.41 cfs 8,045 cf Link AP -1: AP -1 Inflow=6.71 cfs 15,845 cf Primary=6.71 cfs 15,845 cf Total Runoff Area = 123,087 sf Runoff Volume = 15,845 cf Average Runoff Depth = 1.54" 20.62% Pervious = 25,386 sf 79.38% Impervious = 97,701 sf Post Development Type// 24 -hr 1 yr Rainfall=2.15" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 6 Summary for Subcatchment 1: Subcat 1 Runoff = 3.11 cfs @ 11.96 hrs, Volume= 7,346 cf, Depth> 1.89" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type 11 24 -hr 1 yr Rainfall=2.15" Area (sfl CN Description 0 39 >75% Grass cover, Good, HSG A 8 74 >75% Grass cover, Good, HSG C 25)205 98 Paved parking, HSG A 21,308 98 Paved parking, HSG C 46521 Weighted Average 8 0.02% Pervious Area 46513 99.98% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 2: Subcat 2 Runoff = 1.11 cfs @ 11.97 hrs, Volume= 2,628 cf, Depth> 1.38" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type 11 24 -hr 1 yr Rainfall=2.15" Area (sfl CN Description 515 39 >75% Grass cover, Good, HSG A 71386 74 >75% Grass cover, Good, HSG C 894 98 Paved parking, HSG A 141098 98 Paved parking, HSG C 221892 Weighted Average 71901 34.51 % Pervious Area 141991 65.49% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 3: Subcat 3 Runoff = 1.42 cfs @ 11.96 hrs, Volume= 3,362 cf, Depth> 1.25" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type 11 24 -hr 1 yr Rainfall=2.15" Post Development Type// 24 -hr 1 yr Rainfall=2.15" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 8 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 4: Subcat 4 Runoff = 0.67 cfs @ 11.96 hrs, Volume= 1,580 cf, Depth> 1.84" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type 11 24 -hr 1 yr Rainfall=2.15" Area (sf) CN Description 381 74 >75% Grass cover, Good, HSG C 91922 98 Paved parking, HSG C 10,302 Weighted Average 381 3.69% Pervious Area 91922 96.31 % Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 5: Subcat 5 Runoff = 0.10 cfs @ 11.96 hrs, Volume= 229 cf, Depth> 0.82" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type 11 24 -hr 1 yr Rainfall=2.15" Area (sf) CN Description 11885 39 >75% Grass cover, Good, HSG A 11452 98 Paved parking, HSG A 31337 Weighted Average 11885 56.50% Pervious Area 11452 43.50% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Pond CB -1: CB -1 to YD -1 Inflow Area = 7,643 sf, 49.50% Impervious, Inflow Depth > 1.10" for 1 yr event Inflow = 0.29 cfs @ 11.97 hrs, Volume= 698 cf Outflow = 0.29 cfs @ 11.97 hrs, Volume= 698 cf, Atten= 0%, Lag= 0.0 min Primary = 0.29 cfs @ 11.97 hrs, Volume= 698 cf Routing by Stor-Ind method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Post Development Type// 24 -hr 1 yr Rainfall=2.15" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 9 Peak Elev= 266.57'@ 11.97 hrs Device Routing Invert Outlet Devices #1 Primary 266.25' 12.0" Round Culvert L= 50.0' CPP, square edge headwall, Ke= 0.500 Inlet /Outlet Invert= 266.25'/266.00' S=0.0050'/' Cc= 0.900 n=0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=0.29 cfs @ 11.97 hrs HW=266.56' (FreeDischarge) Ll =Culvert (Barrel Controls 0.29 cfs @ 2.06 fps) Routing by Stor-Ind method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 266.48'@ 11.96 hrs Device Routing Invert Outlet Devices #1 Primary 265.00' 12.0" Round Culvert L= 5.0' Ke= 0.500 Inlet /Outlet Invert= 265.00'/265.00' S=0.0000'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf Primary OutFlow Max=3.32 cfs @ 11.96 hrs HW=266.45' (FreeDischarge) Ll =Culvert (Barrel Controls 3.32 cfs @ 4.23 fps) Summary for Pond TD: Trench Drain Inflow Area = 6,308 sf, 43.18% Impervious, Inflow Depth > 1.01" for 1 yr event Inflow = 0.22 cfs @ 11.97 hrs, Volume= 531 cf Outflow = 0.22 cfs @ 11.97 hrs, Volume= 531 cf, Atten= 0%, Lag= 0.0 min Primary = 0.22 cfs @ 11.97 hrs, Volume= 531 cf Routing by Stor-Ind method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 269.01'@ 11.97 hrs Device Routing Invert Outlet Devices #1 Primary 268.75' 8.0" Round Culvert L= 43.0' CPP, square edge headwall, Ke= 0.500 Inlet /Outlet Invert= 268.75'/266.35' S=0.0558'/' Cc= 0.900 n=0.013 Corrugated PE, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.22 cfs @ 11.97 hrs HW=269.01' (FreeDischarge) Ll =Culvert (Inlet Controls 0.22 cfs @ 1.73 fps) Summary for Pond SMP -1: Hydrodynamic Separator Inflow Area = 54,164 sf, 92.86% Impervious, Inflow Depth > 1.78" for 1 yr event Inflow = 3.41 cfs @ 11.96 hrs, Volume= 8,045 cf Outflow = 3.41 cfs @ 11.96 hrs, Volume= 8,045 cf, Atten= 0%, Lag= 0.0 min Primary = 3.41 cfs @ 11.96 hrs, Volume= 8,045 cf Routing by Stor-Ind method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 266.48'@ 11.96 hrs Device Routing Invert Outlet Devices #1 Primary 265.00' 12.0" Round Culvert L= 5.0' Ke= 0.500 Inlet /Outlet Invert= 265.00'/265.00' S=0.0000'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf Primary OutFlow Max=3.32 cfs @ 11.96 hrs HW=266.45' (FreeDischarge) Ll =Culvert (Barrel Controls 3.32 cfs @ 4.23 fps) Summary for Pond TD: Trench Drain Inflow Area = 6,308 sf, 43.18% Impervious, Inflow Depth > 1.01" for 1 yr event Inflow = 0.22 cfs @ 11.97 hrs, Volume= 531 cf Outflow = 0.22 cfs @ 11.97 hrs, Volume= 531 cf, Atten= 0%, Lag= 0.0 min Primary = 0.22 cfs @ 11.97 hrs, Volume= 531 cf Routing by Stor-Ind method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 269.01'@ 11.97 hrs Device Routing Invert Outlet Devices #1 Primary 268.75' 8.0" Round Culvert L= 43.0' CPP, square edge headwall, Ke= 0.500 Inlet /Outlet Invert= 268.75'/266.35' S=0.0558'/' Cc= 0.900 n=0.013 Corrugated PE, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.22 cfs @ 11.97 hrs HW=269.01' (FreeDischarge) Ll =Culvert (Inlet Controls 0.22 cfs @ 1.73 fps) Post Development Type// 24 -hr 1 yr Rainfall=2.15" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 10 Summary for Pond YD -1: YD -1 to HS Inflow Area = 54,164 sf, 92.86% Impervious, Inflow Depth > 1.78" for 1 yr event Inflow = 3.41 cfs @ 11.96 hrs, Volume= 8,045 cf Outflow = 3.41 cfs @ 11.96 hrs, Volume= 8,045 cf, Atten= 0%, Lag= 0.0 min Primary = 3.41 cfs @ 11.96 hrs, Volume= 8,045 cf Routing by Stor-Ind method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 267.21'@ 11.96 hrs Device Routing Invert Outlet Devices #1 Primary 265.90' 12.0" Round Culvert L= 74.0' CPP, square edge headwall, Ke= 0.500 Inlet /Outlet Invert= 265.90'/265.00' S=0.0122'/' Cc= 0.900 n=0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=3.32 cfs @ 11.96 hrs HW=267.17' (FreeDischarge) Ll =Culvert (Inlet Controls 3.32 cfs @ 4.23 fps) Summary for Link AP -1: AP -1 Inflow Area = 123,087 sf, 79.38% Impervious, Inflow Depth > 1.54" for 1 yr event Inflow = 6.71 cfs @ 11.96 hrs, Volume= 15,845 cf Primary = 6.71 cfs @ 11.96 hrs, Volume= 15,845 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Post Development Type 11 24 -hr 10yr Rainfall=3.75" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 11 Time span=5.00-48.00 hrs, dt=0.05 hrs, 861 points Runoff by SCS TR -20 method, UH=SCS, Weighted -Q Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=46,521 sf 99.98% Impervious Runoff Depth>3.42" Tc=6.0 min CN=WQ Runoff=5.52 cfs 13,278 cf Subcatchment2: Subcat 2 Runoff Area=22,892 sf 65.49% Impervious Runoff Depth>2.70" Tc=6.0 min C N =WQ Runoff=2.19 cfs 5,151 cf Subcatchment3: Subcat 3 Runoff Area=32,391 sf 64.95% Impervious Runoff Depth>2.28" Tc=6.0 min C N =WQ Runoff=2.56 cfs 6,158 cf Subcatchment3a: Subcat 3a Runoff Area=6,308 sf 43.18% Impervious Runoff Depth>2.13" Tc=6.0 min CN=WQ Runoff=0.48 cfs 1,117 cf Subcatchment3b: Subcat 3b Runoff Area= 1,335 sf 79.36% Impervious Runoff Depth>2.72" Tc=6.0 min CN=WQ Runoff=0.13 cfs 303 cf Subcatchment4: Subcat 4 Runoff Area= 10,302 sf 96.31% Impervious Runoff Depth>3.35" Tc=6.0 min CN=WQ Runoff=1.20 cfs 2,877 cf Subcatchment5: Subcat 5 Runoff Area=3,337 sf 43.50% Impervious Runoff Depth>1.50" Tc=6.0 min CN=WQ Runoff=0.17 cfs 418 cf Pond CB -1: CB -1 to YD -1 Peak Elev=266.71' Inflow=0.61 cfs 1,420 cf 12.0" Round Culvert n=0.013 L=50.0' S=0.0050'/' Outflow=0.61 cfs 1,420 cf Pond SMP -1: HydrodynamicSeparator Peak Elev=268.12' Inflow=6.13 cfs 14,698 cf 12.0" Round Culvert n=0.012 L=5.0' S=0.0000'/' Outflow=6.13 cfs 14,698 cf Pond TD: Trench Drain Peak Elev=269.16' Inflow=0.48 cfs 1,117 cf 8.0" Round Culvert n=0.013 L=43.0' S=0.0558'/' Outflow=0.48 cfs 1,117 cf Pond YD -1: YD -1 to HS Peak Elev=269.60' Inflow=6.13 cfs 14,698 cf 12.0" Round Culvert n=0.013 L=74.0' S=0.0122'/' Outflow=6.13 cfs 14,698 cf Link AP -1: AP -1 Inflow=12.25 cfs 29,303 cf Primary= 12.25 cfs 29,303 cf Total Runoff Area = 123,087 sf Runoff Volume = 29,303 cf Average Runoff Depth = 2.86" 20.62% Pervious = 25,386 sf 79.38% Impervious = 97,701 sf Post Development Type 11 24 -hr 10yr Rainfall=3.75" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 12 Summary for Subcatchment 1: Subcat 1 Runoff = 5.52 cfs @ 11.96 hrs, Volume= 13,278 cf, Depth> 3.42" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24 -hr 10yr Rainfall=3.75" Area (sfl CN Description 0 39 >75% Grass cover, Good, HSG A 8 74 >75% Grass cover, Good, HSG C 25)205 98 Paved parking, HSG A 21,308 98 Paved parking, HSG C 46521 Weighted Average 8 0.02% Pervious Area 46513 99.98% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 2: Subcat 2 Runoff = 2.19 cfs @ 11.96 hrs, Volume= 5,151 cf, Depth> 2.70" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24 -hr 10yr Rainfall=3.75" Area (sfl CN Description 515 39 >75% Grass cover, Good, HSG A 71386 74 >75% Grass cover, Good, HSG C 894 98 Paved parking, HSG A 141098 98 Paved parking, HSG C 221892 Weighted Average 71901 34.51 % Pervious Area 141991 65.49% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 3: Subcat 3 Runoff = 2.56 cfs @ 11.96 hrs, Volume= 6,158 cf, Depth> 2.28" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type 11 24 -hr 10yr Rainfall=3.75" Post Development Type 11 24 -hr 10yr Rainfall=3.75" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 13 Area (sfl CN Description 101227 39 >75% Grass cover, Good, HSG A 11125 74 >75% Grass cover, Good, HSG C 201719 98 Paved parking, HSG A 320 98 Paved parking, HSG C 321391 Weighted Average 111352 35.05% Pervious Area 211039 64.95% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 3a: Subcat 3a Runoff = 0.48 cfs @ 11.97 hrs, Volume= 1,117 cf, Depth> 2.13" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24 -hr 10yr Rainfall=3.75" Area (sfl CN Description 715 39 >75% Grass cover, Good, HSG A 21870 74 >75% Grass cover, Good, HSG C 11316 98 Paved parking, HSG A 11407 98 Paved parking, HSG C 61308 Weighted Average 31584 56.82% Pervious Area 21724 43.18% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 3b: Subcat 3b Runoff = 0.13 cfs @ 11.96 hrs, Volume= 303 cf, Depth> 2.72" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24 -hr 10yr Rainfall=3.75" Area (sf CN Description 275 39 >75% Grass cover, Good, HSG A 11059 98 Paved parking, HSG A 11335 Weighted Average 275 20.64% Pervious Area 11059 79.36% Impervious Area Post Development Type 11 24 -hr 10yr Rainfall=3.75" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 14 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 4: Subcat 4 Runoff = 1.20 cfs @ 11.96 hrs, Volume= 2,877 cf, Depth> 3.35" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24 -hr 10yr Rainfall=3.75" Area (sf) CN Description 381 74 >75% Grass cover, Good, HSG C 91922 98 Paved parking, HSG C 10,302 Weighted Average 381 3.69% Pervious Area 91922 96.31 % Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 5: Subcat 5 Runoff = 0.17 cfs @ 11.96 hrs, Volume= 418 cf, Depth> 1.50" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24 -hr 10yr Rainfall=3.75" Area (sf) CN Description 11885 39 >75% Grass cover, Good, HSG A 11452 98 Paved parking, HSG A 31337 Weighted Average 11885 56.50% Pervious Area 11452 43.50% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Pond CB -1: CB -1 to YD -1 Inflow Area = 7,643 sf, 49.50% Impervious, Inflow Depth> 2.23" for 10yr event Inflow = 0.61 cfs @ 11.97 hrs, Volume= 1,420 cf Outflow = 0.61 cfs @ 11.97 hrs, Volume= 1,420 cf, Atten= 0%, Lag= 0.0 min Primary = 0.61 cfs @ 11.97 hrs, Volume= 1,420 cf Routing by Stor-Ind method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Post Development Type 11 24 -hr 10yr Rainfall=3.75" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 15 Peak Elev= 266.71'@ 11.97 hrs Device Routing Invert Outlet Devices #1 Primary 266.25' 12.0" Round Culvert L= 50.0' CPP, square edge headwall, Ke= 0.500 Inlet /Outlet Invert= 266.25'/266.00' S=0.0050'/' Cc= 0.900 n=0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=0.59 cfs @ 11.97 hrs HW=266.70' (FreeDischarge) Ll =Culvert (Barrel Controls 0.59 cfs @ 2.49 fps) Summary for Pond SMP -1: Hydrodynamic Separator Inflow Area = 54,164 sf, 92.86% Impervious, Inflow = 6.13 cfs @ 11.96 hrs, Volume= Outflow = 6.13 cfs @ 11.96 hrs, Volume= Primary = 6.13 cfs @ 11.96 hrs, Volume= Inflow Depth > 3.26" 14,698 cf 14,698 cf, 14,698 cf Routing by Stor-Ind method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 268.12'@ 11.96 hrs for 10yr event Atten= 0%, Lag= 0.0 min Device Routing Invert Outlet Devices #1 Primary 265.00' 12.0" Round Culvert L= 5.0' Ke= 0.500 Inlet /Outlet Invert= 265.00'/265.00' S=0.0000'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf Primary OutFlow Max=5.98 cfs @ 11.96 hrs HW=268.00' (Free Discharge) Ll =Culvert (Inlet Controls 5.98 cfs @ 7.62 fps) Summary for Pond TD: Trench Drain Inflow Area = 6,308 sf, 43.18% Impervious, Inflow = 0.48 cfs @ 11.97 hrs, Volume= Outflow = 0.48 cfs @ 11.97 hrs, Volume= Primary = 0.48 cfs @ 11.97 hrs, Volume= Inflow Depth > 2.13" 1,117 cf 1,117 cf, 1,117 cf Routing by Stor-Ind method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 269.16'@ 11.97 hrs for 10yr event Atten= 0%, Lag= 0.0 min Device Routing Invert Outlet Devices #1 Primary 268.75' 8.0" Round Culvert L= 43.0' CPP, square edge headwall, Ke= 0.500 Inlet /Outlet Invert= 268.75'/266.35' S=0.0558'/' Cc= 0.900 n=0.013 Corrugated PE, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.47 cfs @ 11.97 hrs HW=269.15' (FreeDischarge) Ll =Culvert (Inlet Controls 0.47 cfs @ 2.15 fps) Post Development Type 11 24 -hr 10yr Rainfall=3.75" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 16 Summary for Pond YD -1: YD -1 to HS Inflow Area = 54,164 sf, 92.86% Impervious, Inflow Depth > 3.26" for 10yr event Inflow = 6.13 cfs @ 11.96 hrs, Volume= 14,698 cf Outflow = 6.13 cfs @ 11.96 hrs, Volume= 14,698 cf, Atten= 0%, Lag= 0.0 min Primary = 6.13 cfs @ 11.96 hrs, Volume= 14,698 cf Routing by Stor-Ind method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 269.60'@ 11.96 hrs Device Routing Invert Outlet Devices #1 Primary 265.90' 12.0" Round Culvert L= 74.0' CPP, square edge headwall, Ke= 0.500 Inlet /Outlet Invert= 265.90'/265.00' S=0.0122'/' Cc= 0.900 n=0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=5.98 cfs @ 11.96 hrs HW=269.45' (Free Discharge) Ll =Culvert (Barrel Controls 5.98 cfs @ 7.62 fps) Summary for Link AP -1: AP -1 Inflow Area = 123,087 sf, 79.38% Impervious, Inflow Depth > 2.86" for 10yr event nflow = 12.25 cfs @ 11.96 hrs, Volume= 29,303 cf Primary = 12.25 cfs @ 11.96 hrs, Volume= 29,303 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Post Development Type 11 24 -hr 100yr Rainfall= 6.20" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 1 Time span=5.00-48.00 hrs, dt=0.05 hrs, 861 points Runoff by SCS TR -20 method, UH=SCS, Weighted -Q Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=46,521 sf 99.98% Impervious Runoff Depth>5.75" Tc=6.0 min CN=WQ Runoff=9.18 cfs 22,293 cf Subcatchment2: Subcat 2 Runoff Area=22,892 sf 65.49% Impervious Runoff Depth>4.86" Tc=6.0 min CN=WQ Runoff=3.93 cfs 9,270 cf Subcatchment3: Subcat 3 Runoff Area=32,391 sf 64.95% Impervious Runoff Depth>4.01" Tc=6.0 min CN=WQ Runoff=4.36 cfs 10,827 cf Subcatchment3a: Subcat 3a Runoff Area=6,308 sf 43.18% Impervious Runoff Depth>4.07" Tc=6.0 min CN=WQ Runoff=0.92 cfs 2,137 cf Subcatchment3b: Subcat 3b Runoff Area=1,335 sf 79.36% Impervious Runoff Depth>4.67" Tc=6.0 min CN=WQ Runoff=0.21 cfs 519 cf Subcatchment4: Subcat 4 Runoff Area=10,302 sf 96.31% Impervious Runoff Depth>5.66" Tc=6.0 min C N =WQ Runoff=2.01 cfs 4,861 cf Subcatchment5: Subcat 5 Runoff Area=3,337 sf 43.50% Impervious Runoff Depth>2.79" Tc=6.0 min CN=WQ Runoff=0.30 cfs 775 cf Pond CB -1: CB -1 to YD -1 Peak Elev=266.91' Inflow=1.13 cfs 2,657 cf 12.0" Round Culvert n=0.013 L=50.0' S=0.0050'/' Outflow=1.13 cfs 2,657 cf Pond SMP -1: Hyd rodynam is Separator Peak Elev=272.91' Inflow=10.31 cfs 24,949 cf 12.0" Round Culvert n=0.012 L=5.0' S=0.0000'/' Outflow=10.31 cfs 24,949 cf Pond TD: Trench Drain Peak Elev=269.38' Inflow=0.92 cfs 2,137 cf 8.0" Round Culvert n=0.013 L=43.0' S=0.0558'/' Outflow=0.92 cfs 2,137 cf Pond YD -1: YD -1 to HS Peak Elev=276.20' Inflow=10.31 cfs 24,949 cf 12.0" Round Culvert n=0.013 L=74.0' S=0.0122'/' Outflow=10.31 cfs 24,949 cf Link AP -1: AP -1 Inflow=20.91 cfs 50,682 cf Primary=20.91 cfs 50,682 cf Total Runoff Area = 123,087 sf Runoff Volume = 50,682 cf Average Runoff Depth = 4.94" 20.62% Pervious = 25,386 sf 79.38% Impervious = 97,701 sf Post Development Type 11 24 -hr 100yr Rainfall= 6.20" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 2 Summary for Subcatchment 1: Subcat 1 Runoff = 9.18 cfs @ 11.96 hrs, Volume= 22,293 cf, Depth> 5.75" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24 -hr 1 00y Rainfall=6.20" Area (sfl CN Description 0 39 >75% Grass cover, Good, HSG A 8 74 >75% Grass cover, Good, HSG C 25)205 98 Paved parking, HSG A 21,308 98 Paved parking, HSG C 46521 Weighted Average 8 0.02% Pervious Area 46513 99.98% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 2: Subcat 2 Runoff = 3.93 cfs @ 11.96 hrs, Volume= 9,270 cf, Depth> 4.86" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24 -hr 100yr Rainfall=6.20" Area (sfl CN Description 515 39 >75% Grass cover, Good, HSG A 71386 74 >75% Grass cover, Good, HSG C 894 98 Paved parking, HSG A 141098 98 Paved parking, HSG C 221892 Weighted Average 71901 34.51 % Pervious Area 141991 65.49% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 3: Subcat 3 Runoff = 4.36 cfs @ 11.96 hrs, Volume= 10,827 cf, Depth> 4.01" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type 11 24 -hr 1 00y Rainfall=6.20" Post Development Type 11 24 -hr 100yr Rainfall= 6.20" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 3 Area (sfl CN Description 101227 39 >75% Grass cover, Good, HSG A 11125 74 >75% Grass cover, Good, HSG C 201719 98 Paved parking, HSG A 320 98 Paved parking, HSG C 321391 Weighted Average 111352 35.05% Pervious Area 211039 64.95% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 3a: Subcat 3a Runoff = 0.92 cfs @ 11.97 hrs, Volume= 2,137 cf, Depth> 4.07" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24 -hr 1 00y Rainfall=6.20" Area (sfl CN Description 715 39 >75% Grass cover, Good, HSG A 21870 74 >75% Grass cover, Good, HSG C 11316 98 Paved parking, HSG A 11407 98 Paved parking, HSG C 61308 Weighted Average 31584 56.82% Pervious Area 21724 43.18% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 3b: Subcat 3b Runoff = 0.21 cfs @ 11.96 hrs, Volume= 519 cf, Depth> 4.67" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24 -hr 100yr Rainfall=6.20" Area (sf CN Description 275 39 >75% Grass cover, Good, HSG A 11059 98 Paved parking, HSG A 11335 Weighted Average 275 20.64% Pervious Area 11059 79.36% Impervious Area Post Development Type 11 24 -hr 100yr Rainfall= 6.20" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 4 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 4: Subcat 4 Runoff = 2.01 cfs @ 11.96 hrs, Volume= 4,861 cf, Depth> 5.66" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24 -hr 1 00y Rainfall=6.20" Area (sf) CN Description 381 74 >75% Grass cover, Good, HSG C 91922 98 Paved parking, HSG C 10,302 Weighted Average 381 3.69% Pervious Area 91922 96.31 % Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 5: Subcat 5 Runoff = 0.30 cfs @ 11.97 hrs, Volume= 775 cf, Depth> 2.79" Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Type II 24 -hr 100yr Rainfall=6.20" Area (sf) CN Description 11885 39 >75% Grass cover, Good, HSG A 11452 98 Paved parking, HSG A 31337 Weighted Average 11885 56.50% Pervious Area 11452 43.50% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Pond CB -1: CB -1 to YD -1 Inflow Area = 7,643 sf, 49.50% Impervious, Inflow Depth> 4.17" for 1 00y event Inflow = 1.13 cfs @ 11.97 hrs, Volume= 2,657 cf Outflow = 1.13 cfs @ 11.97 hrs, Volume= 2,657 cf, Atten= 0%, Lag= 0.0 min Primary = 1.13 cfs @ 11.97 hrs, Volume= 2,657 cf Routing by Stor-Ind method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Post Development Type 11 24 -hr 100yr Rainfall= 6.20" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 5 Peak Elev= 266.91'@ 11.97 hrs Device Routing Invert Outlet Devices #1 Primary 266.25' 12.0" Round Culvert L= 50.0' CPP, square edge headwall, Ke= 0.500 Inlet /Outlet Invert= 266.25'/266.00' S=0.0050'/' Cc= 0.900 n=0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=1.10 cfs @ 11.97 hrs HW=266.90' (FreeDischarge) Ll =Culvert (Barrel Controls 1.10 cfs @ 2.92 fps) Summary for Pond SMP -1: Hydrodynamic Separator Inflow Area = 54,164 sf, 92.86% Impervious, Inflow Depth > 5.53" for 1 00y event Inflow = 10.31 cfs @ 11.96 hrs, Volume= 24,949 cf Outflow = 10.31 cfs @ 11.96 hrs, Volume= 24,949 cf, Atten= 0%, Lag= 0.0 min Primary = 10.31 cfs @ 11.96 hrs, Volume= 24,949 cf Routing by Stor-Ind method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 272.91'@ 11.96 hrs Device Routing Invert Outlet Devices #1 Primary 265.00' 12.0" Round Culvert L= 5.0' Ke= 0.500 Inlet /Outlet Invert= 265.00'/265.00' S=0.0000'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf Primary OutFlow Max=10.07 cfs @ 11.96 hrs HW=272.59' (FreeDischarge) Ll =Culvert (Inlet Controls 10.07 cfs @ 12.82 fps) Summary for Pond TD: Trench Drain Inflow Area = 6,308 sf, 43.18% Impervious, Inflow Depth > 4.07" for 100yr event Inflow = 0.92 cfs @ 11.97 hrs, Volume= 2,137 cf Outflow = 0.92 cfs @ 11.97 hrs, Volume= 2,137 cf, Atten= 0%, Lag= 0.0 min Primary = 0.92 cfs @ 11.97 hrs, Volume= 2,137 cf Routing by Stor-Ind method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 269.38'@ 11.97 hrs Device Routing Invert Outlet Devices #1 Primary 268.75' 8.0" Round Culvert L= 43.0' CPP, square edge headwall, Ke= 0.500 Inlet /Outlet Invert= 268.75'/266.35' S=0.0558'/' Cc= 0.900 n=0.013 Corrugated PE, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.89 cfs @ 11.97 hrs HW=269.36' (FreeDischarge) Ll =Culvert (Inlet Controls 0.89 cfs @ 2.66 fps) Post Development Type 11 24 -hr 100yr Rainfall= 6.20" Prepared by The LA Group Printed 7/10/2019 HydroCADO 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Page 6 Summary for Pond YD -1: YD -1 to HS Inflow Area = 54,164 sf, 92.86% Impervious, Inflow Depth > 5.53" for 1 00y event Inflow = 10.31 cfs @ 11.96 hrs, Volume= 24,949 cf Outflow = 10.31 cfs @ 11.96 hrs, Volume= 24,949 cf, Atten= 0%, Lag= 0.0 min Primary = 10.31 cfs @ 11.96 hrs, Volume= 24,949 cf Routing by Stor-Ind method, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 276.20'@ 11.96 hrs Device Routing Invert Outlet Devices #1 Primary 265.90' 12.0" Round Culvert L= 74.0' CPP, square edge headwall, Ke= 0.500 Inlet /Outlet Invert= 265.90'/265.00' S=0.0122'/' Cc= 0.900 n=0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=10.07 cfs @ 11.96 hrs HW=275.76' (FreeDischarge) Ll =Culvert (Barrel Controls 10.07 cfs @ 12.82 fps) Summary for Link AP -1: AP -1 Inflow Area = 123,087 sf, 79.38% Impervious, Inflow Depth > 4.94" for 100yr event nflow = 20.91 cfs @ 11.96 hrs, Volume= 50,682 cf Primary = 20.91 cfs @ 11.96 hrs, Volume= 50,682 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-48.00 hrs, dt= 0.05 hrs Stormwater Practice Sizing Job Name and # Flat Rock Parking Garage Water Quality Volume Calculation 7/10/2019 WQv = [(P)(Rv)(A)]/12 Where: Rv = 0.05 + 0.009(I) I =impervious cover in percent P = 90% rainfall (see Figure 4.1 in NYS Stormwater Management Design Manual) A Area in acres Required WQv Disturbed Impervious %Impervious 100.00% Rv 0.95 90% Rainfall 1.15 Area in Square Feet 651282 WQv Calculated = 5943 ft 3 0.136 ac -ft 75% WQv Required*= 4458 ft 3 0.102 ac -ft * Use of hydrodynamic separators requires treatment of 75% of disturbed impervious area. Calculated WQv Disturbed Impervious (SMP -2, Hydrodynamic Separator) Impervious 92.86% Rv 0.89 90% Rainfall 1.15 Area in Square Feet 541164 WQv Calculated = 4598 ft 0.106 ac -ft Appendix C Map Set Appendix D SWPPP Inspection Form Flat Rock Parking Garage — Saratoga Springs WEEKLY SWPPP INSPECTION REPORT Inspector Name: Date: Signature (required): Time: Weather: Inspection #: Soil Conditions (dry, saturated, etc): Note: Digital photos, with date stamp required for all practices requiring corrective action, before and after, to be attached to the inspection report. YES NO N/A 1. ❑ ❑ ❑ 2. Routine Inspection. Date of last inspection: Inspection following rain event. Date/time of storm ending: Rainfall amount: Recorded by: 3. ❑ ❑ ❑ Is this a final site inspection? 4. ❑ ❑ ❑ Has site undergone final stabilization? ❑ ❑ ❑ If so, have all temporary erosion and sediment controls been removed? Site Disturbance (Indicate Locations on Plan) YES NO N/A 1. ❑ ❑ ❑ Areas previously disturbed, but have not undergone active site work in the last 14 days? 2. ❑ ❑ ❑ Areas disturbed within last 14 days? 3. ❑ ❑ ❑ Areas expected to be disturbed in next 14 days? 4. ❑ ❑ ❑ Do areas of steep slopes or complex stabilization issues exist? If "YES" explain: 5. ❑ ❑ ❑ Are there currently more than 5 acres of disturbed soil at the site? If so make sure there is an approval letter from NYS DEC. Additional Comments: Inspection of Erosion and Sediment Control Devices Type of Control Device Accumulation (if any) in % Repairs/Maintenance Needed 1. 2. 3. 4. 5. 6. Stabilization/Runoff YES NO N/A 1. ❑ ❑ ❑ Are all existing disturbed areas contained by control devices? Type of devices: 2. ❑ ❑ ❑ Are there areas that require stabilization within the next 14 days? Specify Area: 3. ❑ ❑ ❑ Have stabilization measures been initiated in inactive areas? 4. ❑ ❑ ❑ Is there current snow cover or frozen ground conditions? 5. ❑ ❑ ❑ Rills or gullies? 6. ❑ ❑ ❑ Slumping/deposition? 7. ❑ ❑ ❑ Loss of vegetation? 8. ❑ ❑ ❑ Lack of germination? 9. ❑ ❑ ❑ Loss of mulching? Receiving Structures/Water Bodies (Indicate locations where runoff leaves the project site on the site plan) YES NO N/A 1. ❑ ❑ ❑ Surface water swale or natural surface waterbody? If natural waterbody: Is waterbody located ❑ onsite, or ❑ adjacent to property boundary? Description of condition: 2. ❑ ❑ ❑ Municipal or community system? Inspect locations where runoff from project site enters the receiving waters and indicate if there is evidence of: a. ❑ ❑ ❑ Rills or gullies? b. ❑ ❑ ❑ Slumping/deposition? C. ❑ ❑ ❑ Loss of vegetation? d. ❑ ❑ ❑ Undermining of structures? e. ❑ ❑ ❑ Was there a discharge into the receiving water on the day of inspection? f. ❑ ❑ ❑ Is there evidence of turbidity, sedimentation, or oil in the receiving waters? Additional Comments: Inspection of Post -Construction Stormwater Management Control Devices Type of Control Device Phase of Construction Repairs/Maintenance Needed 1. 2. 3. 4. General Site Condition YES NO N/A 1. ❑ ❑ ❑ Have action items from previous reports been addressed? 2. ❑ ❑ ❑ Does routine maintenance of protection components occur on a regular basis? 3. ❑ ❑ ❑ Does cleaning and/or sweeping affected roadways occur, at minimum, daily? 4. ❑ ❑ ❑ Is debris and litter removed on a monthly basis, or as necessary? 5. ❑ ❑ ❑ Is the site maintained in an orderly manner? Describe the condition of all natural waterbodies within or adjacent to the Project that receive runoff from the site: Contractors progress over last 7 days: Anticipated work to be begun in the next 7 days: Additional Comments: Visual Observations YES NO N/A 1. ❑ ❑ ❑ All erosion and sediment control measures have been installed/constructed? 2. ❑ ❑ ❑ All erosion and sediment control measures are being maintained properly? SUMMARY OF ACTION ITEMS TO REPAIR/REPLACE/MAINTAIN/CORRECT DEFICIENCIES Action Reported To (no signature required): Company: Appendix E Other SWPPP Forms Construction Sequence SWPPP Plan Changes Spill Response Form Stormwater Management Practice Maintenance Log The operator shall prepare a summary of construction status using the Construction Sequence Form below once every month. Significant deviations to the sequence and reasons for those deviations (i.e. weather, subcontractor availability, etc.), shall be noted by the contractor. The schedule shall be used to record the dates for initiation of construction, implementation of erosion control measures, stabilization, etc. A copy of this table will be maintained at the construction site and updated in addition to the individual Inspection Reports completed for each inspection. Construction Sequence Form Construction Activities Date (Identify name of planned practices) Complete 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. STORM WATER POLLUTION PREVENTION PLAN PLAN CHANGES, AUTHORIZATION, AND CHANGE CERTIFICATION CHANGES REQUIRED TO THE POLLUTION PREVENTION PLAN: REASONS FOR CHANGES: REQUESTED BY: DATE: AUTHORIZED BY: DATE: CERTIFICATION OF CHANGES: certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that false statements made herein are punishable as a Class A misdemeanor pursuant to Section 210.45 of the penal code. SIGNATURE: DATE: SPILL RESPONSE REPORT Within 1 hour of a spill discovery less than 2 gallons in volume the following must be notified: City of Saratoga Springs (518) 587-3550 Within 1 hour of a spill discovery greater than 2 gallons the following must be notified: City of Saratoga Springs NYSDEC Spill Response Hotline 1-800-457-7362 Spill Response Contractor Material Spilled: Approximate Volume: Location: Distance to nearest down gradient drainage: Distance to nearest down gradient open water: Temporary control measures in place: I r EW YORK [department cif 011 R��,�;��Y Environmental -} £ortserVati0n NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES From CONSTRUCTION ACTIVITY Permit No. P-0-15-002 issued Pursuant to Article 17. . Titles 7, 8 and Article 70 of the Environmental Conservation Law Effective Dale: January 29. 2015 Expiration Date: January 28, 2020 Modificatian Date: July 14, 015 - Correction of typographical error in definition of "New Devrelopnaenr, Appendix A John J_ Fergus-Gn C hie( Permit Administrator Ut {}feZ inat�a--Date Addressu- NYS DEC Division of Environmental Permits 625 Broadway, 4th Floor Albany, N.Y. 12233-1750 NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES FROM CONSTRUCTION ACTIVITIES Part I. PERMIT COVERAGE AND LIMITATIONS..............................................................1 A. Permit Application.................................................................................................1 B. Effluent Limitations Applicable to Discharges from Construction Activities ...........1 C. Post -construction Stormwater Management Practice Requirements ....................4 D. Maintaining Water Quality.....................................................................................8 E. Eligibility Under This General Permit.....................................................................9 F. Activities Which Are Ineligible for Coverage Under This General Permit ..............9 Part II. OBTAINING PERMIT COVERAGE.....................................................................12 A. Notice of Intent (NOI) Submittal..........................................................................12 B. Permit Authorization............................................................................................13 C. General Requirements For Owners or Operators With Permit Coverage ...........15 D. Permit Coverage for Discharges Authorized Under GP -0-10-001 .......................17 E. Change of Owner or Operator.............................................................................17 Part III. STORMWATER POLLUTION PREVENTION PLAN(SWPPP)...........................18 A. General SWPPP Requirements..........................................................................18 B. Required SWPPP Contents................................................................................20 C. Required SWPPP Components by Project Type.................................................23 Part IV. INSPECTION AND MAINTENANCE REQUIREMENTS.....................................24 A. General Construction Site Inspection and Maintenance Requirements ..............24 B. Contractor Maintenance Inspection Requirements.............................................24 C. Qualified Inspector Inspection Requirements......................................................24 Part V. TERMINATION OF PERMIT COVERAGE...........................................................28 A. Termination of Permit Coverage.........................................................................28 Part VI. REPORTING AND RETENTION OF RECORDS................................................30 A. Record Retention................................................................................................30 B. Addresses...........................................................................................................30 Part VII. STANDARD PERMIT CONDITIONS.................................................................31 A. Duty to Comply....................................................................................................31 B. Continuation of the Expired General Permit........................................................31 C. Enforcement........................................................................................................31 D. Need to Halt or Reduce Activity Not a Defense...................................................31 E. Duty to Mitigate...................................................................................................32 F. Duty to Provide Information.................................................................................32 G. Other Information................................................................................................32 H. Signatory Requirements......................................................................................32 I. Property Rights.......................................................................................................34 J. Severability.............................................................................................................34 K. Requirement to Obtain Coverage Under an Alternative Permit ...........................34 L. Proper Operation and Maintenance....................................................................35 M. Inspection and Entry...........................................................................................35 N. Permit Actions.....................................................................................................36 O. Definitions...........................................................................................................36 P. Re -Opener Clause..............................................................................................36 PREFACE Pursuant to Section 402 of the Clean Water Act ("CWA"), stormwater discharges from certain construction activities are unlawful unless they are authorized by a National Pollutant Discharge Elimination System ("NPDES') permit or by a state permit program. New York's State Pollutant Discharge Elimination System ("SPDES') is a NPDES- approved program with permits issued in accordance with the Environmental Conservation Law ("ECL'). This general permit ("permit") is issued pursuant to Article 17, Titles 7, 8 and Article 70 of the ECL. An owner or operator may obtain coverage under this permit by submitting a Notice of Intent ("NOI") to the Department. Copies of this permit and the NOI for New York are available by calling (518) 402-8109 or at any New York State Department of Environmental Conservation ("the Department") regional office (see Appendix G).They are also available on the Department's website at- http://www.dec.nv.qov/ An owner or operator of a construction activity that is eligible for coverage under this permit must obtain coverage prior to the commencement of construction activity. Activities that fit the definition of "construction activity', as defined under 40 CFR 122.26(b)(14)(x), (15)(i), and (15)(ii), constitute construction of a point source and therefore, pursuant to Article 17-0505 of the ECL, the owner or operator must have coverage under a SPDES permit prior to commencing construction activity. They cannot wait until there is an actual discharge from the construction site to obtain permit coverage. *Note: The italicized words/phrases within this permit are defined in Appendix A. Q. Penalties for Falsification of Forms and Reports.................................................36 R. Other Permits......................................................................................................36 APPENDIXA....................................................................................................................37 APPENDIXB....................................................................................................................44 APPENDIXC...................................................................................................................46 APPENDIXD...................................................................................................................52 APPENDIXE....................................................................................................................53 APPENDIXF....................................................................................................................55 (Part 1) Part I. PERMIT COVERAGE AND LIMITATIONS A. Permit Application This permit authorizes stormwater discharges to surface waters of the State from the following construction activities identified within 40 CFR Parts 122.26(b)(14)(x), 122.26(b)(1 5)(i) and 122.26(b)(15)(ii), provided all of the eligibility provisions of this permit are met: 'i Construction activities involving soil disturbances of one (1) or more acres; including disturbances of less than one acre that are part of a larger common plan of development or sale that will ultimately disturb one or more acres of land; excluding routine maintenance activity that is performed to maintain the original line and grade, hydraulic capacity or original purpose of a facility; Construction activities involving soil disturbances of less than one (1) acre where the Department has determined that a SPDES permit is required for stormwater discharges based on the potential for contribution to a violation of a water quality standard or for significant contribution of pollutants to surface waters of the State. 3. Construction activities located in the watershed(s) identified in Appendix D that involve soil disturbances between five thousand (5,000) square feet and one (1) acre of land. B. Effluent Limitations Applicable to Discharges from Construction Activities Discharges authorized by this permit must achieve, at a minimum, the effluent limitations in Part 1.B.1. (a) — (f) of this permit. These limitations represent the degree of effluent reduction attainable by the application of best practicable technology currently available._ 1. Erosion and Sediment Control Requirements - The owner or operator must select, design, install, implement and maintain control measures to minimize the discharge of pollutants and prevent a violation of the water quality standards. The selection, design, installation, implementation, and maintenance of these control measures must meet the non -numeric effluent limitations in Part I.B.1.(a) — (f) of this permit and be in accordance with the New York State Standards and Specifications for Erosion and Sediment Control, dated August 2005, using sound engineering judgment. Where control measures are not designed in conformance with the design criteria included in the technical standard, the owner or operator must include in the Stormwater Pollution Prevention Plan ("SWPPP") the reason(s) for the deviation or alternative design and provide information 1 (Part 1.B.1) (Part I.B.1.c) (Part I.B.1.f) from dewatering of trenches and excavations, must be managed by appropriate control measures. d. Pollution Prevention Measures. Design, install, implement, and maintain effective pollution prevention measures to minimize the discharge of pollutants and prevent a violation of the water quality standards. At a minimum, such measures must be designed, installed, implemented and maintained to: (i) Minimize the discharge of pollutants from equipment and vehicle washing, wheel wash water, and other wash waters. This applies to washing operations that use clean water only. Soaps, detergents and solvents cannot be used; (ii) Minimize the exposure of building materials, building products, construction wastes, trash, landscape materials, fertilizers, pesticides, herbicides, detergents, sanitary waste and other materials present on the site to precipitation and to stormwater. Minimization of exposure is not required in cases where the exposure to precipitation and to stormwater will not result in a discharge of pollutants, or where exposure of a specific material or product poses little risk of stormwater contamination (such as final products and materials intended for outdoor use) ; and (iii) Prevent the discharge of pollutants from spills and leaks and implement chemical spill and leak prevention and response procedures. e. Prohibited Discharges. The following discharges are prohibited: (i) Wastewater from washout of concrete; (ii) Wastewater from washout and cleanout of stucco, paint, form release oils, curing compounds and other construction materials; (iii) Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance; (iv) Soaps or solvents used in vehicle and equipment washing; and (v) Toxic or hazardous substances from a spill or other release. f. Surface Outlets. When discharging from basins and impoundments, the outlets shall be designed, constructed and maintained in such a manner that sediment does not leave the basin or impoundment and that erosion 3 which demonstrates that the deviation or alternative design is equivalent to the technical standard. a. Erosion and Sediment Controls. Design, install and maintain effective erosion and sediment controls to minimize the discharge of pollutants and prevent a violation of the water quality standards. At a minimum, such controls must be designed, installed and maintained to: (i) Minimize soil erosion through application of runoff control and soil stabilization control measure to minimize pollutant discharges; (ii) Control stormwater discharges to minimize channel and streambank erosion and scour in the immediate vicinity of the discharge points; (iii) Minimize the amount of soil exposed during construction activity; (iv) Minimize the disturbance of steep slopes; (v) Minimize sediment discharges from the site; (vi) Provide and maintain natural buffers around surface waters, direct stormwater to vegetated areas and maximize stormwater infiltration to reduce pollutant discharges, unless infeasible; (vii) Minimize soil compaction. Minimizing soil compaction is not required where the intended function of a specific area of the site dictates that it be compacted; and (viii) Unless infeasible, preserve a sufficient amount of topsoil to complete soil restoration and establish a uniform, dense vegetative cover. b. Soil Stabilization. In areas where soil disturbance activity has temporarily or permanently ceased, the application of soil stabilization measures must be initiated by the end of the next business day and completed within fourteen (14) days from the date the current soil disturbance activity ceased. For construction sites that directly discharge to one of the 303(d) segments listed in Appendix E or is located in one of the watersheds listed in Appendix C, the application of soil stabilization measures must be initiated by the end of the next business day and completed within seven (7) days from the date the current soil disturbance activity ceased. See Appendix A for definition of Temporarily Ceased. c. Dewatering. Discharges from dewatering activities, including discharges 2 at or below the outlet does not occur. C. Post -construction Stormwater Management Practice Requirements 1. The owner or operator of a construction activity that requires post - construction stormwater management practices pursuant to Part III.C. of this permit must select, design, install, and maintain the practices to meet the performance criteria in the New York State Stormwater Management Design Manual ("Design Manual"), dated January 2015, using sound engineering judgment. Where post -construction stormwater management practices ("SMPs") are not designed in conformance with the performance criteria in the Design Manual, the owner or operator must include in the SWPPP the reason(s) for the deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. The owner or operator of a construction activity that requires post - construction stormwater management practices pursuant to Part III.C. of this permit must design the practices to meet the applicable sizing criteria in Part I.C.2.a., b., c. or d. of this permit. a. Sizing Criteria for New Development (i) Runoff Reduction Volume ("RRv"): Reduce the total Water Quality Volume ("WQv") by application of RR techniques and standard SMPs with RRv capacity. The total WQv shall be calculated in accordance with the criteria in Section 4.2 of the Design Manual. (ii) Minimum RRv and Treatment of Remaining Total WQv: Construction activities that cannot meet the criteria in Part I.C.2.a.(i) of this permit due to site limitations shall direct runoff from all newly constructed impervious areas to a RR technique or standard SMP with RRv capacity unless infeasible. The specific site limitations that prevent the reduction of 100% of the WQv shall be documented in the SWPPP. For each impervious area that is not directed to a RR technique or standard SMP with RRv capacity, the SWPPP must include documentation which demonstrates that all options were considered and for each option explains why it is considered infeasible. In no case shall the runoff reduction achieved from the newly constructed impervious areas be less than the Minimum RRv as calculated using the criteria in Section 4.3 of the Design Manual. The remaining portion of the total WQv 4 (Part I.C.2.a.ii) (Part I.C.2.c.i) that cannot be reduced shall be treated by application of standard SMPs. (iii) Channel Protection Volume ("Cpv"): Provide 24 hour extended detention of the post -developed 1 -year, 24-hour storm event; remaining after runoff reduction. The Cpv requirement does not apply when: (1) Reduction of the entire Cpv is achieved by application of runoff reduction techniques or infiltration systems, or (2) The site discharges directly to tidal waters, or fifth order or larger streams. (iv) Overbank Flood Control Criteria ("Qp"): Requires storage to attenuate the post -development 10 -year, 24-hour peak discharge rate (Qp) to predevelopment rates. The Qp requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. (v) Extreme Flood Control Criteria ("Qf'): Requires storage to attenuate the post -development 100 -year, 24-hour peak discharge rate (Qf) to predevelopment rates. The Qf requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. b. Sizing Criteria for New Development in Enhanced Phosphorus Removal Watershed (i) Runoff Reduction Volume (RRv): Reduce the total Water Quality Volume (WQv) by application of RR techniques and standard SMPs with RRv capacity. The total WQv is the runoff volume from the 1 -year, 24 hour design storm over the post -developed watershed and shall be calculated in accordance with the criteria in Section 10.3 of the Design Manual. (ii) Minimum RRv and Treatment of Remaining Total WQv: Construction activities that cannot meet the criteria in Part I.C.2.b.(i) of this permit due to site limitations shall direct runoff from all newly constructed impervious areas to a RR technique or (i) Water Quality Volume (WQv): The WQv treatment objective for redevelopment activity shall be addressed by one of the following options. Redevelopment activities located in an Enhanced Phosphorus Removal Watershed (see Part III.6.3. and Appendix C of this permit) shall calculate the WQv in accordance with Section 10.3 of the Design Manual. All other redevelopment activities shall calculate the WQv in accordance with Section 4.2 of the Design Manual. (1) Reduce the existing impervious cover by a minimum of 25% of the total disturbed, impervious area. The Soil Restoration criteria in Section 5.1.6 of the Design Manual must be applied to all newly created pervious areas, or (2) Capture and treat a minimum of 25% of the WQv from the disturbed, impervious area by the application of standard SMPs; or reduce 25% of the WQv from the disturbed, impervious area by the application of RR techniques or standard SMPs with RRv capacity., or (3) Capture and treat a minimum of 75% of the WQv from the disturbed, impervious area as well as any additional runoff from tributary areas by application of the alternative practices discussed in Sections 9.3 and 9.4 of the Design Manual., or (4) Application of a combination of 1, 2 and 3 above that provide a weighted average of at least two of the above methods. Application of this method shall be in accordance with the criteria in Section 9.2.1(8) (IV) of the Design Manual. If there is an existing post -construction stormwater management practice located on the site that captures and treats runoff from the impervious area that is being disturbed, the WQv treatment option selected must, at a minimum, provide treatment equal to the treatment that was being provided by the existing practice(s) if that treatment is greater than the treatment required by options 1 — 4 above. (ii) Channel Protection Volume (Cpv): Not required if there are no changes to hydrology that increase the discharge rate from the project site. (iii) Overbank Flood Control Criteria (Qp): Not required if there are no changes to hydrology that increase the discharge rate from the project site. (Part I.C.2.b.ii) standard SMP with RRv capacity unless infeasible. The specific site limitations that prevent the reduction of 100% of the WQv shall be documented in the SWPPP. For each impervious area that is not directed to a RR technique or standard SMP with RRv capacity, the SWPPP must include documentation which demonstrates that all options were considered and for each option explains why it is considered infeasible. In no case shall the runoff reduction achieved from the newly constructed impervious areas be less than the Minimum RRv as calculated using the criteria in Section 10.3 of the Design Manual. The remaining portion of the total WQv that cannot be reduced shall be treated by application of standard SMPs. (iii) Channel Protection Volume (Cpv): Provide 24 hour extended detention of the post -developed 1 -year, 24-hour storm event; remaining after runoff reduction. The Cpv requirement does not apply when: (1) Reduction of the entire Cpv is achieved by application of runoff reduction techniques or infiltration systems, or (2) The site discharges directly to tidal waters, or fifth order or larger streams. (iv) Overbank Flood Control Criteria (Qp): Requires storage to attenuate the post -development 10 -year, 24-hour peak discharge rate (Qp) to predevelopment rates. The Qp requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. (v) Extreme Flood Control Criteria (Qf): Requires storage to attenuate the post -development 100 -year, 24-hour peak discharge rate (Qf) to predevelopment rates. The Qf requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. c. Sizing Criteria for Redevelopment Activity 6 (Part I.C.2.c.iv) (iv) Extreme Flood Control Criteria (Qf): Not required if there are no changes to hydrology that increase the discharge rate from the project site. d. Sizing Criteria for Combination of Redevelopment Activity and New Development Construction projects that include both New Development and Redevelopment Activity shall provide post -construction stormwater management controls that meet the sizing criteria calculated as an aggregate of the Sizing Criteria in Part I.C.2.a. or b. of this permit for the New Development portion of the project and Part I.C.2.c of this permit for Redevelopment Activity portion of the project. D. Maintaining Water Quality The Department expects that compliance with the conditions of this permit will control discharges necessary to meet applicable water quality standards. It shall be a violation of the ECL for any discharge to either cause or contribute to a violation of water quality standards as contained in Parts 700 through 705 of Title 6 of the Official Compilation of Codes, Rules and Regulations of the State of New York, such as: There shall be no increase in turbidity that will cause a substantial visible contrast to natural conditions; 2 There shall be no increase in suspended, colloidal or settleable solids that will cause deposition or impair the waters for their best usages; and 3. There shall be no residue from oil and floating substances, nor visible oil film, nor globules of grease. If there is evidence indicating that the stormwater discharges authorized by this permit are causing, have the reasonable potential to cause, or are contributing to a violation of the water quality standards; the owner or operator must take appropriate corrective action in accordance with Part IV.C.5. of this general permit and document in accordance with Part IV.C.4. of this general permit. To address the water quality standard violation the owner or operator may need to provide additional information, include and implement appropriate controls in the SWPPP to correct the problem, or obtain an individual SPDES permit. If there is evidence indicating that despite compliance with the terms and conditions of this general permit it is demonstrated that the stormwater discharges authorized by this permit are causing or contributing to a violation of water quality standards, or (Part I.D) if the Department determines that a modification of the permit is necessary to prevent a violation of water quality standards, the authorized discharges will no longer be eligible for coverage under this permit. The Department may require the owner or operator to obtain an individual SPDES permit to continue discharging. E. Eligibility Under This General Permit 1 . This permit may authorize all discharges of stormwater from construction activity to surface waters of the State and groundwaters except for ineligible discharges identified under subparagraph F. of this Part. 2 Except for non-stormwater discharges explicitly listed in the next paragraph, this permit only authorizes stormwater discharges from construction activities. Notwithstanding paragraphs EA and E.2 above, the following non- stormwater discharges may be authorized by this permit: discharges from firefighting activities; fire hydrant flushings; waters to which cleansers or other components have not been added that are used to wash vehicles or control dust in accordance with the SWPPP, routine external building washdown which does not use detergents; pavement washwaters where spills or leaks of toxic or hazardous materials have not occurred (unless all spilled material has been removed) and where detergents are not used; air conditioning condensate; uncontaminated groundwater or spring water; uncontaminated discharges from construction site de -watering operations; and foundation or footing drains where flows are not contaminated with process materials such as solvents. For those entities required to obtain coverage under this permit, and who discharge as noted in this paragraph, and with the exception of flows from firefighting activities, these discharges must be identified in the SWPPP. Under all circumstances, the owner or operator must still comply with water quality standards in Part LD of this permit. 4. The owner or operator must maintain permit eligibility to discharge under this permit. Any discharges that are not compliant with the eligibility conditions of this permit are not authorized by the permit and the owner or operator must either apply for a separate permit to cover those ineligible discharges or take steps necessary to make the discharge eligible for coverage. F. Activities Which Are Ineligible for Coverage Under This General Permit All of the following are not authorized by this permit: (Part I.F.8) 8. Construction activities that have the potential to affect an historic property, unless there is documentation that such impacts have been resolved. The following documentation necessary to demonstrate eligibility with this requirement shall be maintained on site in accordance with Part II.C.2 of this permit and made available to the Department in accordance with Part VII.F of this permit: a. Documentation that the construction activity is not within an archeologically sensitive area indicated on the sensitivity map, and that the construction activity is not located on or immediately adjacent to a property listed or determined to be eligible for listing on the National or State Registers of Historic Places, and that there is no new permanent building on the construction site within the following distances from a building, structure, or object that is more than 50 years old, or if there is such a new permanent building on the construction site within those parameters that NYS Office of Parks, Recreation and Historic Preservation (OPRHP), a Historic Preservation Commission of a Certified Local Government, or a qualified preservation professional has determined that the building, structure, or object more than 50 years old is not historically/archeologically significant. ■ 1-5 acres of disturbance - 20 feet ■ 5-20 acres of disturbance - 50 feet ■ 20+ acres of disturbance - 100 feet, or b. DEC consultation form sent to OPRHP, and copied to the NYS DEC Agency Historic Preservation Officer (APO), and (i) the State Environmental Quality Review (SEAR) Environmental Assessment Form (EAF) with a negative declaration or the Findings Statement, with documentation of OPRHP's agreement with the resolution; or (ii) documentation from OPRHP that the construction activity will result in No Impact; or (iii) documentation from OPRHP providing a determination of No Adverse Impact; or (iv) a Letter of Resolution signed by the owner/operator, OPRHP and the DEC APO which allows for this construction activity to be eligible for coverage under the general permit in terms of the State Historic Preservation Act (SHPA); or c. Documentation of satisfactory compliance with Section 106 of the National Historic Preservation Act for a coterminous project area: (i) No Affect (ii) No Adverse Affect (Part I.F) 1 Discharges after construction activities have been completed and the site has undergone final stabilization; f' Discharges that are mixed with sources of non-stormwater other than those expressly authorized under subsection E.3. of this Part and identified in the SWPPP required by this permit; 3. Discharges that are required to obtain an individual SPDES permit or another SPDES general permit pursuant to Part VII.K. of this permit; 4. Construction activities or discharges from construction activities that may adversely affect an endangered or threatened species unless the owner or operator has obtained a permit issued pursuant to 6 NYCRR Part 182 for the project or the Department has issued a letter of non -jurisdiction for the project. All documentation necessary to demonstrate eligibility shall be maintained on site in accordance with Part II.C.2 of this permit. n. Discharges which either cause or contribute to a violation of water quality standards adopted pursuant to the ECL and its accompanying regulations; 6. Construction activities for residential, commercial and institutional projects: a. Where the discharges from the construction activities are tributary to waters of the state classified as AA or AA -s; and b. Which disturb one or more acres of land with no existing impervious cover, and c. Which are undertaken on land with a Soil Slope Phase that is identified as an E or F, or the map unit name is inclusive of 25% or greater slope, on the United States Department of Agriculture ("USDA") Soil Survey for the County where the disturbance will occur. 7. Construction activities for linear transportation projects and linear utility projects: a. Where the discharges from the construction activities are tributary to waters of the state classified as AA or AA -s; and b. Which disturb two or more acres of land with no existing impervious cover, and c. Which are undertaken on land with a Soil Slope Phase that is identified as an E or F, or the map unit name is inclusive of 25% or greater slope, on the USDA Soil Survey for the County where the disturbance will occur. 10 (Part I.F.8.c.iii) (iii) Executed Memorandum of Agreement, or d. Documentation that: (i) SHPA Section 14.09 has been completed by NYS DEC or another state agency. 9. Discharges from construction activities that are subject to an existing SPDES individual or general permit where a SPDES permit for construction activity has been terminated or denied; or where the owner or operator has failed to renew an expired individual permit. Part II. OBTAINING PERMIT COVERAGE A.Notice of Intent (NOI) Submittal 1 An owner or operator of a construction activity that is not subject to the requirements of a regulated, traditional land use control MS4 must first prepare a SWPPP in accordance with all applicable requirements of this permit and then submit a completed NOI form to the Department in order to be authorized to discharge under this permit. An owner or operator shall use either the electronic (eNO1) or paper version of the NOI that the Department prepared. Both versions of the NOI are located on the Department's website (http://www.dec.ny.gov/ ). The paper version of the NOI shall be signed in accordance with Part VII.H. of this permit and submitted to the following address. NOTICE OF INTENT NYS DEC, Bureau of Water Permits 625 Broadway, 4t" Floor Albany, New York 12233-3505 2 An owner or operator of a construction activity that is subject to the requirements of a regulated, traditional land use control MS4 must first prepare a SWPPP in accordance with all applicable requirements of this permit and then have its SWPPP reviewed and accepted by the regulated, traditional land use control MS4 prior to submitting the NOI to the Department. The owner or operator shall have the "MS4 SWPPP Acceptance" form signed in accordance with Part VII.H., and then submit that form along with a completed NOI to the Department. An owner or operator shall use either the electronic (eNO1) or paper version of the NOI. The paper version of the NOI shall be signed in accordance with Part VII.H. of this permit and submitted to the address in Part II.A.1. 12 (Part II.A.2) The requirement for an owner or operator to have its SWPPP reviewed and accepted by the MS4 prior to submitting the NOI to the Department does not apply to an owner or operator that is obtaining permit coverage in accordance with the requirements in Part II.E. (Change of Owner or Operator) or where the owner or operator of the construction activity is the regulated, traditional land use control MS4. 3. The owner or operator shall have the SWPPP preparer sign the "SWPPP Preparer Certification" statement on the NOI prior to submitting the form to the Department. 4. As of the date the NOI is submitted to the Department, the owner or operator shall make the NOI and SWPPP available for review and copying in accordance with the requirements in Part VII.F. of this permit. B. Permit Authorization (Part 11.6.4) 1 An owner or operator shall not commence construction activity until their authorization to discharge under this permit goes into effect. 2 Authorization to discharge under this permit will be effective when the owner or operator has satisfied all of the following criteria: a. project review pursuant to the State Environmental Quality Review Act ("SEQRA") have been satisfied, when SEQRA is applicable. See the Department's website (http://www.dec.ny.gov/) for more information, b. where required, all necessary Department permits subject to the Uniform Procedures Act ("UPA') (see 6 NYCRR Part 621) have been obtained, unless otherwise notified by the Department pursuant to 6 NYCRR 621.3(a)(4). Owners or operators of construction activities that are required to obtain UPA permits must submit a preliminary SWPPP to the appropriate DEC Permit Administrator at the Regional Office listed in Appendix F at the time all other necessary UPA permit applications are submitted. The preliminary SWPPP must include sufficient information to demonstrate that the construction activity qualifies for authorization under this permit, c. the final SWPPP has been prepared, and d. a complete NOI has been submitted to the Department in accordance with the requirements of this permit. 3. An owner oroperatorthat has satisfied the requirements of Part 11.6.2 above 13 under this permit if the Department determines that the SWPPP does not meet the permit requirements. In accordance with statute, regulation, and the terms and conditions of this permit, the Department may deny coverage under this permit and require submittal of an application for an individual SPDES permit based on a review of the NOI or other information pursuant to Part 11. ;. Coverage under this permit authorizes stormwater discharges from only those areas of disturbance that are identified in the NOI. If an owner or operator wishes to have stormwater discharges from future or additional areas of disturbance authorized, they must submit a new NOI that addresses that phase of the development, unless otherwise notified by the Department. The owner or operator shall not commence construction activity on the future or additional areas until their authorization to discharge under this permit goes into effect in accordance with Part II.B. of this permit. C. General Requirements For Owners or Operators With Permit Coverage .i The owner or operator shall ensure that the provisions of the SWPPP are implemented from the commencement of construction activity until all areas of disturbance have achieved final stabilization and the Notice of Termination ("NOT") has been submitted to the Department in accordance with Part V. of this permit. This includes any changes made to the SWPPP pursuant to Part III.A.4. of this permit. 2 The owner or operator shall maintain a copy of the General Permit (GP -0- 15-002), NOI, N01 Acknowledgment Letter, SWPPP, MS4 SWPPP Acceptance form, inspection reports, and all documentation necessary to demonstrate eligibility with this permit at the construction site until all disturbed areas have achieved final stabilization and the NOT has been submitted to the Department. The documents must be maintained in a secure location, such as a job trailer, on-site construction office, or mailbox with lock. The secure location must be accessible during normal business hours to an individual performing a compliance inspection. 3. The owner or operator of a construction activity shall not disturb greater than five (5) acres of soil at any one time without prior written authorization from the Department or, in areas under the jurisdiction of a regulated, traditional land use control MS4, the regulated, traditional land use control MS4 (provided the regulated, traditional land use control MS4 is not the owner or operator of the construction activity). At a minimum, the owner or operator must comply with the following requirements in order to be authorized to disturb greater than five (5) acres of soil at any one time: a. The owner or operator shall 15 (Part II.B.3) will be authorized to discharge stormwater from their construction activity in accordance with the following schedule: a. For construction activities that are not subject to the requirements of a regulated, traditional land use control MS4: (i) Five (5) business days from the date the Department receives a complete electronic version of the NOI (eN01) for construction activities with a SWPPP that has been prepared in conformance with the design criteria in the technical standard referenced in Part III.B.1 and the performance criteria in the technical standard referenced in Parts III.B., 2 or 3, for construction activities that require post -construction stormwater management practices pursuant to Part III.C.; or (ii) Sixty (60) business days from the date the Department receives a complete NOI (electronic or paper version) for construction activities with a SWPPP that has not been prepared in conformance with the design criteria in technical standard referenced in Part 111.8.1. or, for construction activities that require post -construction stormwater management practices pursuant to Part III.C., the performance criteria in the technical standard referenced in Parts III.B., 2 or 3, or; (iii) Ten (10) business days from the date the Department receives a complete paper version of the NOI for construction activities with a SWPPP that has been prepared in conformance with the design criteria in the technical standard referenced in Part III.B.1 and the performance criteria in the technical standard referenced in Parts III.B., 2 or 3, for construction activities that require post - construction stormwater management practices pursuant to Part III.C. b. For construction activities that are subject to the requirements of a regulated, traditional land use control MS4: (i) Five (5) business days from the date the Department receives both a complete electronic version of the NOI (eN01) and signed "MS4 SWPPP Acceptance" form, or (ii) Ten (10) business days from the date the Department receives both a complete paper version of the NOI and signed "MS4 SWPPP Acceptance" form. 4. The Department may suspend or deny an owner's or operator's coverage 14 (Part II.C.3.a) have a qualified inspector conduct at least two (2) site inspections in accordance with Part IV.C. of this permit every seven (7) calendar days, for as long as greater than five (5) acres of soil remain disturbed. The two (2) inspections shall be separated by a minimum of two (2) full calendar days. b. In areas where soil disturbance activity has temporarily or permanently ceased, the application of soil stabilization measures must be initiated by the end of the next business day and completed within seven (7) days from the date the current soil disturbance activity ceased. The soil stabilization measures selected shall be in conformance with the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated August 2005. c. The owner oroperatorshall prepare a phasing plan that defines maximum disturbed area per phase and shows required cuts and fills. d. The owner or operator shall install any additional site specific practices needed to protect water quality. e. The owner or operator shall include the requirements above in their SWPPP. I In accordance with statute, regulations, and the terms and conditions of this permit, the Department may suspend or revoke an owner's or operator's coverage under this permit at any time if the Department determines that the SWPPP does not meet the permit requirements. Upon a finding of significant non-compliance with the practices described in the SWPPP or violation of this permit, the Department may order an immediate stop to all activity at the site until the non-compliance is remedied. The stop work order shall be in writing, describe the non-compliance in detail, and be sent to the owner or operator. a For construction activities that are subject to the requirements of a regulated, traditional land use control MS4, the owner or operator shall notify the regulated, traditional land use control MS4 in writing of any planned amendments or modifications to the post -construction stormwater management practice component of the SWPPP required by Part III.A. 4. and 5. of this permit. Unless otherwise notified by the regulated, traditional land use control MS4, the owner or operator shall have the SWPPP amendments or modifications reviewed and accepted by the regulated, traditional land use control MS4 prior to commencing construction of the post -construction stormwater management practice 16 (Part II.D) D. Permit Coverage for Discharges Authorized Under GP -0-10-001 1 . Upon renewal of SPDES General Permit for Stormwater Discharges from Construction Activity (Permit No. GP -0-10-001), an owner or operator of a construction activity with coverage under GP -0-10-001, as of the effective date of GP -0-15-002, shall be authorized to discharge in accordance with GP -0-15-002, unless otherwise notified by the Department. An owner or operator may continue to implement the technical/design components of the post -construction stormwater management controls provided that such design was done in conformance with the technical standards in place at the time of initial project authorization. However, they must comply with the other, non -design provisions of GP -0-15-002. E. Change of Owner or Operator (Part III.A.5) When property ownership changes or when there is a change in operational control over the construction plans and specifications, the original owner or operator must notify the new owner or operator, in writing, of the requirement to obtain permit coverage by submitting a NOI with the Department. Once the new owner or operator obtains permit coverage, the original owner or operator shall then submit a completed NOT with the name and permit identification number of the new owner or operator to the Department at the address in Part II.A.1. of this permit. If the original owner or operator maintains ownership of a portion of the construction activity and will disturb soil, they must maintain their coverage under the permit. Permit coverage for the new owner or operator will be effective as of the date the Department receives a complete NOI, provided the original owner or operatorwas not subject to a sixty (60) business day authorization period that has not expired as of the date the Department receives the NOI from the new owner or operator. SWPPP does not meet one or more of the minimum requirements of this permit. The notification shall be in writing and identify the provisions of the SWPPP that require modification. Within fourteen (14) calendar days of such notification, or as otherwise indicated by the Department, the owner or operator shall make the required changes to the SWPPP and submit written notification to the Department that the changes have been made. If the owner or operator does not respond to the Department's comments in the specified time frame, the Department may suspend the owner's or operator's coverage under this permit or require the owner or operator to obtain coverage under an individual SPDES permit in accordance with Part II.C.4. of this permit. Prior to the commencement of construction activity, the owner or operator must identify the contractor(s) and subcontractor(s) that will be responsible for installing, constructing, repairing, replacing, inspecting and maintaining the erosion and sediment control practices included in the SWPPP; and the contractor(s) and subcontractor(s) that will be responsible for constructing the post -construction stormwater management practices included in the SWPPP. The owner or operator shall have each of the contractors and subcontractors identify at least one person from their company that will be responsible for implementation of the SWPPP. This person shall be known as the trained contractor. The owner or operator shall ensure that at least one trained contractor is on site on a daily basis when soil disturbance activities are being performed. The owner or operator shall have each of the contractors and subcontractors identified above sign a copy of the following certification statement below before they commence any construction activity: "I hereby certify under penalty of law that I understand and agree to comply with the terms and conditions of the SWPPP and agree to implement any corrective actions identified by the qualified inspector during a site inspection. I also understand that the owner or operator must comply with the terms and conditions of the most current version of the New York State Pollutant Discharge Elimination System ("SPDES") general permit for stormwater discharges from construction activities and that it is unlawful for any person to cause or contribute to a violation of water quality standards. Furthermore, I am aware that there are significant penalties for submitting false information, that I do not believe to be true, including the possibility of fine and imprisonment for knowing violations" In addition to providing the certification statement above, the certification page must also identify the specific elements of the SWPPP that each contractor and subcontractor will be responsible for and include the name and title of the person providing the signature; the name and title of the 19 (Part III) Part III. STORMWATER POLLUTION PREVENTION PLAN (SWPPP) A. General SWPPP Requirements 1. A SWPPP shall be prepared and implemented by the owner or operator of each construction activity covered by this permit. The SWPPP must document the selection, design, installation, implementation and maintenance of the control measures and practices that will be used to meet the effluent limitations in Part I.B. of this permit and where applicable, the post -construction stormwater management practice requirements in Part I.C. of this permit. The SWPPP shall be prepared prior to the submittal of the NOI. The NOI shall be submitted to the Department prior to the commencement of construction activity. A copy of the completed, final NOI shall be included in the SWPPP. 2 The SWPPP shall describe the erosion and sediment control practices and where required, post -construction stormwater management practices that will be used and/or constructed to reduce the pollutants in stormwater discharges and to assure compliance with the terms and conditions of this permit. In addition, the SWPPP shall identify potential sources of pollution which may reasonably be expected to affect the quality of stormwater discharges. 3. All SWPPPs that require the post -construction stormwater management practice component shall be prepared by a qualified professional that is knowledgeable in the principles and practices of stormwater management and treatment. 4 The owner or operator must keep the SWPPP current so that it at all times accurately documents the erosion and sediment controls practices that are being used or will be used during construction, and all post -construction stormwater management practices that will be constructed on the site. At a minimum, the owner or operator shall amend the SWPPP: a. whenever the current provisions prove to be ineffective in minimizing pollutants in stormwater discharges from the site; b. whenever there is a change in design, construction, or operation at the construction site that has or could have an effect on the discharge of pollutants; and c. to address issues or deficiencies identified during an inspection by the qualified inspector, the Department or other regulatory authority. 5. The Department may notify the owner or operator at any time that the (Part III.A.6) trained contractor responsible for SWPPP implementation; the name, address and telephone number of the contracting firm; the address (or other identifying description) of the site; and the date the certification statement is signed. The owner or operator shall attach the certification statement(s) to the copy of the SWPPP that is maintained at the construction site. If new or additional contractors are hired to implement measures identified in the SWPPP after construction has commenced, they must also sign the certification statement and provide the information listed above. 7. For projects where the Department requests a copy of the SWPPP or inspection reports, the owner or operator shall submit the documents in both electronic (PDF only) and paper format within five (5) business days, unless otherwise notified by the Department. B. Required SWPPP Contents 1 Erosion and sediment control component - All SWPPPs prepared pursuant to this permit shall include erosion and sediment control practices designed in conformance with the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated August 2005. Where erosion and sediment control practices are not designed in conformance with the design criteria included in the technical standard, the owner or operator must demonstrate equivalence to the technical standard. At a minimum, the erosion and sediment control component of the SWPPP shall include the following: a. Background information about the scope of the project, including the location, type and size of project; b. A site map/construction drawing(s) for the project, including a general location map. At a minimum, the site map shall show the total site area; all improvements; areas of disturbance; areas that will not be disturbed. existing vegetation; on-site and adjacent off-site surface water(s), flood plain/floodway boundaries; wetlands and drainage patterns that could be affected by the construction activity; existing and final contours ; locations of different soil types with boundaries; material, waste, borrow or equipment storage areas located on adjacent properties; and location(s) of the stormwater discharge(s); c. A description of the soil(s) present at the site, including an identification of the Hydrologic Soil Group (HSG); d. A construction phasing plan and sequence of operations describing the intended order of construction activities, including clearing and grubbing, excavation and grading, utility and infrastructure installation and any other 20 (Part III.B.1.d) activity at the site that results in soil disturbance; e. A description of the minimum erosion and sediment control practices to be installed or implemented for each construction activity that will result in soil disturbance. Include a schedule that identifies the timing of initial placement or implementation of each erosion and sediment control practice and the minimum time frames that each practice should remain in place or be implemented; f. A temporary and permanent soil stabilization plan that meets the requirements of this general permit and the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated August 2005, for each stage of the project, including initial land clearing and grubbing to project completion and achievement of final stabilization; g. A site map/construction drawing(s) showing the specific location(s), size(s), and length(s) of each erosion and sediment control practice; h. The dimensions, material specifications, installation details, and operation and maintenance requirements for all erosion and sediment control practices. Include the location and sizing of any temporary sediment basins and structural practices that will be used to divert flows from exposed soils; i. A maintenance inspection schedule for the contractor(s) identified in Part III.A.6. of this permit, to ensure continuous and effective operation of the erosion and sediment control practices. The maintenance inspection schedule shall be in accordance with the requirements in the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated August 2005; j. A description of the pollution prevention measures that will be used to control litter, construction chemicals and construction debris from becoming a pollutant source in the stormwater discharges; k. A description and location of any stormwater discharges associated with industrial activity other than construction at the site, including, but not limited to, stormwater discharges from asphalt plants and concrete plants located on the construction site; and I. Identification of any elements of the design that are not in conformance with the design criteria in the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated August 2005. Include the reason for the deviation or alternative design 21 (Part 111.B.2.c.iv) that each post -construction stormwater management practice has been designed in conformance with the sizing criteria included in the Design Manual; (v) Identification of any sizing criteria that is not required based on the requirements included in Part I.C. of this permit; and (vi) Identification of any elements of the design that are not in conformance with the performance criteria in the Design Manual. Include the reason(s) for the deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the Design Manual; d. Soil testing results and locations (test pits, borings); e. Infiltration test results, when required; and f. An operations and maintenance plan that includes inspection and maintenance schedules and actions to ensure continuous and effective operation of each post -construction stormwater management practice. The plan shall identify the entity that will be responsible for the long term operation and maintenance of each practice. 3. Enhanced Phosphorus Removal Standards - All construction projects identified in Table 2 of Appendix B that are located in the watersheds identified in Appendix C shall prepare a SWPPP that includes post - construction stormwater management practices designed in conformance with the applicable sizing criteria in Part I.C.2. b., c. or d. of this permit and the performance criteria, Enhanced Phosphorus Removal Standards included in the Design Manual. At a minimum, the post -construction stormwater management practice component of the SWPPP shall include items 2.a - 2.f. above. C. Required SWPPP Components by Project Type Unless otherwise notified by the Department, owners or operators of construction activities identified in Table 1 of Appendix B are required to prepare a SWPPP that only includes erosion and sediment control practices designed in conformance with Part III.B.1 of this permit. Owners or operators of the construction activities identified in Table 2 of Appendix B shall prepare a SWPPP that also includes post -construction stormwater management practices designed in conformance with Part III.B.2 or 3 of this permit. (Part III.B.1.1) and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. 2 Post -construction stormwater management practice component — The owner or operator of any construction project identified in Table 2 of Appendix B as needing post -construction stormwater management practices shall prepare a SWPPP that includes practices designed in conformance with the applicable sizing criteria in Part I.C.2.a., c. or d. of this permit and the performance criteria in the technical standard, New York State Stormwater Management Design Manual dated January 2015 Where post -construction stormwater management practices are not designed in conformance with the performance criteria in the technical standard, the owner or operator must include in the SWPPP the reason(s) for the deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. The post -construction stormwater management practice component of the SWPPP shall include the following: a. Identification of all post -construction stormwater management practices to be constructed as part of the project. Include the dimensions, material specifications and installation details for each post -construction stormwater management practice; b. A site map/construction drawing(s) showing the specific location and size of each post -construction stormwater management practice; c. A Stormwater Modeling and Analysis Report that includes: (i) Map(s) showing pre -development conditions, including watershed/subcatchments boundaries, flow paths/routing, and design points; (ii) Map(s) showing post -development conditions, including watershed/subcatchments boundaries, flow paths/routing, design points and post -construction stormwater management practices; (iii) Results of stormwater modeling (i.e. hydrology and hydraulic analysis) for the required storm events. Include supporting calculations (model runs), methodology, and a summary table that compares pre and post -development runoff rates and volumes for the different storm events; (iv) Summary table, with supporting calculations, which demonstrates 22 (Part IV) Part IV. INSPECTION AND MAINTENANCE REQUIREMENTS A. General Construction Site Inspection and Maintenance Requirements 1 . The owner or operator must ensure that all erosion and sediment control practices (including pollution prevention measures) and all post - construction stormwater management practices identified in the SWPPP are inspected and maintained in accordance with Part IV.B. and C. of this permit. 2 The terms of this permit shall not be construed to prohibit the State of New York from exercising any authority pursuant to the ECL, common law or federal law, or prohibit New York State from taking any measures, whether civil or criminal, to prevent violations of the laws of the State of New York, or protect the public health and safety and/or the environment. B. Contractor Maintenance Inspection Requirements 1 . The owner or operator of each construction activity identified in Tables 1 and 2 of Appendix B shall have a trained contractor inspect the erosion and sediment control practices and pollution prevention measures being implemented within the active work area daily to ensure that they are being maintained in effective operating condition at all times. If deficiencies are identified, the contractor shall begin implementing corrective actions within one business day and shall complete the corrective actions in a reasonable time frame. r' For construction sites where soil disturbance activities have been temporarily suspended (e.g. winter shutdown) and temporary stabilization measures have been applied to all disturbed areas, the trained contractor can stop conducting the maintenance inspections. The trained contractor shall begin conducting the maintenance inspections in accordance with Part IV.B.1. of this permit as soon as soil disturbance activities resume. 3. For construction sites where soil disturbance activities have been shut down with partial project completion, the trained contractor can stop conducting the maintenance inspections if all areas disturbed as of the project shutdown date have achieved final stabilization and all post -construction stormwater management practices required for the completed portion of the project have been constructed in conformance with the SWPPP and are operational. C. Qualified Inspector Inspection Requirements 23 24 (Part IV.C) The owner or operator shall have a qualified inspector conduct site inspections in conformance with the following requirements: [Note: The trained contractor identified in Part III.A.6. and IV.B. of this permit cannot conduct the qualified inspector site inspections unless they meet the qualified inspector qualifications included in Appendix A. In order to perform these inspections, the trained contractor would have to be a- - licensed Professional Engineer, - Certified Professional in Erosion and Sediment Control (CPESC), - Registered Landscape Architect, or - someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided they have received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity]. 1. A qualified inspector shall conduct site inspections for all construction activities identified in Tables 1 and 2 of Appendix B, with the exception of: a. the construction of a single family residential subdivision with 25% or less impervious cover at total site build -out that involves a soil disturbance of one (1) or more acres of land but less than five (5) acres and is not located in one of the watersheds listed in Appendix C and not directly discharging to one of the 303(d) segments listed in Appendix E; b. the construction of a single family home that involves a soil disturbance of one (1) or more acres of land but less than five (5) acres and is not located in one of the watersheds listed in Appendix C and not directly discharging to one of the 303(d) segments listed in Appendix E; c. construction on agricultural property that involves a soil disturbance of one (1) or more acres of land but less than five (5) acres; and d. construction activities located in the watersheds identified in Appendix D that involve soil disturbances between five thousand (5,000) square feet and one (1) acre of land. `. Unless otherwise notified by the Department, the qualified inspector shall conduct site inspections in accordance with the following timetable: (Part IV.C.2.e) a. For construction sites where soil disturbance activities are on-going, the qualified inspector shall conduct a site inspection at least once every seven (7) calendar days. b. For construction sites where soil disturbance activities are on-going and 25 be separated by a minimum of two (2) full calendar days. 3. At a minimum, the qualified inspectorshall inspect all erosion and sediment control practices and pollution prevention measures to ensure integrity and effectiveness, all post -construction stormwater management practices under construction to ensure that they are constructed in conformance with the SWPPP, all areas of disturbance that have not achieved final stabilization, all points of discharge to natural surface waterbodies located within, or immediately adjacent to, the property boundaries of the construction site, and all points of discharge from the construction site. 4. The qualified inspector shall prepare an inspection report subsequent to each and every inspection. At a minimum, the inspection report shall include and/or address the following: a. Date and time of inspection; b. Name and title of person(s) performing inspection; c. A description of the weather and soil conditions (e.g. dry, wet, saturated) at the time of the inspection; d. A description of the condition of the runoff at all points of discharge from the construction site. This shall include identification of any discharges of sediment from the construction site. Include discharges from conveyance systems (i.e. pipes, culverts, ditches, etc.) and overland flow; e. A description of the condition of all natural surface waterbodies located within, or immediately adjacent to, the property boundaries of the construction site which receive runoff from disturbed areas. This shall include identification of any discharges of sediment to the surface waterbody; f. Identification of all erosion and sediment control practices and pollution prevention measures that need repair or maintenance; g. Identification of all erosion and sediment control practices and pollution prevention measures that were not installed properly or are not functioning as designed and need to be reinstalled or replaced; h. Description and sketch of areas with active soil disturbance activity, areas that have been disturbed but are inactive at the time of the inspection, and areas that have been stabilized (temporary and/or final) since the last inspection; (Part IV.C.2.b) (Part IV.C.4.i) the owner or operator has received authorization in accordance with Part II.C.3 to disturb greater than five (5) acres of soil at any one time, the qualified inspector shall conduct at least two (2) site inspections every seven (7) calendar days. The two (2) inspections shall be separated by a minimum of two (2) full calendar days. c. For construction sites where soil disturbance activities have been temporarily suspended (e.g. winter shutdown) and temporary stabilization measures have been applied to all disturbed areas, the qualified inspector shall conduct a site inspection at least once every thirty (30) calendar days. The owner or operator shall notify the DOW Water (SPDES) Program contact at the Regional Office (see contact information in Appendix F) or, in areas under the jurisdiction of a regulated, traditional land use control MS4, the regulated, traditional land use control MS4 (provided the regulated, traditional land use control MS4 is not the owner or operator of the construction activity) in writing prior to reducing the frequency of inspections. d. For construction sites where soil disturbance activities have been shut down with partial project completion, the qualified inspector can stop conducting inspections if all areas disturbed as of the project shutdown date have achieved final stabilization and all post -construction stormwater management practices required for the completed portion of the project have been constructed in conformance with the SWPPP and are operational. The owner or operator shall notify the DOW Water (SPDES) Program contact at the Regional Office (see contact information in Appendix F) or, in areas under the jurisdiction of a regulated, traditional land use control MS4, the regulated, traditional land use control MS4 (provided the regulated, traditional land use control MS4 is not the owner or operator of the construction activity) in writing prior to the shutdown. If soil disturbance activities are not resumed within 2 years from the date of shutdown, the owner or operator shall have the qualified inspector perform a final inspection and certify that all disturbed areas have achieved final stabilization, and all temporary, structural erosion and sediment control measures have been removed, and that all post -construction stormwater management practices have been constructed in conformance with the SWPPP by signing the "Final Stabilization" and "Post -Construction Stormwater Management Practice" certification statements on the NOT. The owner or operator shall then submit the completed NOT form to the address in Part II.A.1 of this permit. e. For construction sites that directly discharge to one of the 303(d) segments listed in Appendix E or is located in one of the watersheds listed in Appendix C, the qualified inspector shall conduct at least two (2) site inspections every seven (7) calendar days. The two (2) inspections shall 26 Current phase of construction of all post -construction stormwater management practices and identification of all construction that is not in conformance with the SWPPP and technical standards; j. Corrective action(s) that must be taken to install, repair, replace or maintain erosion and sediment control practices and pollution prevention measures; and to correct deficiencies identified with the construction of the post -construction stormwater management practice(s); k. Identification and status of all corrective actions that were required by previous inspection; and I. Digital photographs, with date stamp, that clearly show the condition of all practices that have been identified as needing corrective actions. The qualified inspector shall attach paper color copies of the digital photographs to the inspection report being maintained onsite within seven (7) calendar days of the date of the inspection. The qualified inspector shall also take digital photographs, with date stamp, that clearly show the condition of the practice(s) after the corrective action has been completed. The qualified inspector shall attach paper color copies of the digital photographs to the inspection report that documents the completion of the corrective action work within seven (7) calendar days of that inspection. :5. Within one business day of the completion of an inspection, the qualified inspector shall notify the owner or operator and appropriate contractor or subcontractor identified in Part III.A.6. of this permit of any corrective actions that need to be taken. The contractor or subcontractor shall begin implementing the corrective actions within one business day of this notification and shall complete the corrective actions in a reasonable time frame. 6 All inspection reports shall be signed by the qualified inspector. Pursuant to Part II.C.2. of this permit, the inspection reports shall be maintained on site with the SWPPP. Part V. TERMINATION OF PERMIT COVERAGE A. Termination of Permit Coverage 1. An owner or operator that is eligible to terminate coverage under this permit must submit a completed NOT form to the address in Part II.A.1 of this permit. The NOT form shall be one which is associated with this permit, signed in accordance with Part VII.H of this permit. 27 28 (Part V.A.2) }° An owner or operator may terminate coverage when one or more the following conditions have been met: a. Total project completion - All construction activity identified in the SWPPP has been completed; and all areas of disturbance have achieved final stabilization; and all temporary, structural erosion and sediment control measures have been removed; and all post -construction stormwater management practices have been constructed in conformance with the SWPPP and are operational; b. Planned shutdown with partial project completion - All soil disturbance activities have ceased; and all areas disturbed as of the project shutdown date have achieved final stabilization; and all temporary, structural erosion and sediment control measures have been removed; and all post - construction stormwater management practices required for the completed portion of the project have been constructed in conformance with the SWPPP and are operational; c. A new owner or operator has obtained coverage under this permit in accordance with Part II.E. of this permit. d. The owner or operator obtains coverage under an alternative SPDES general permit or an individual SPDES permit. �. For construction activities meeting subdivision 2a. or 2b. of this Part, the owner or operator shall have the qualified inspector perform a final site inspection prior to submitting the NOT. The qualified inspector shall, by signing the "Final Stabilization" and "Post -Construction Stormwater Management Practice certification statements on the NOT, certify that all the requirements in Part V.A.2.a. or b. of this permit have been achieved. 4. For construction activities that are subject to the requirements of a regulated, traditional land use control MS4 and meet subdivision 2a. or 2b. of this Part, the owner or operator shall have the regulated, traditional land use control MS4 sign the "MS4 Acceptance" statement on the NOT in accordance with the requirements in Part VII.H. of this permit. The regulated, traditional land use control MS4 official, by signing this statement, has determined that it is acceptable for the owner or operator to submit the NOT in accordance with the requirements of this Part. The regulated, traditional land use control MS4 can make this determination by performing a final site inspection themselves or by accepting the qualified inspector's final site inspection certification(s) required in Part V.A.3. of this permit. 29 (Part VII) Part VII. STANDARD PERMIT CONDITIONS A. Duty to Comply The owner or operator must comply with all conditions of this permit. All contractors and subcontractors associated with the project must comply with the terms of the SWPPP. Any non-compliance with this permit constitutes a violation of the Clean Water Act (CWA) and the ECL and is grounds for an enforcement action against the owner or operator and/or the contractor/subcontractor; permit revocation, suspension or modification; or denial of a permit renewal application. Upon a finding of significant non-compliance with this permit or the applicable SWPPP, the Department may order an immediate stop to all construction activity at the site until the non-compliance is remedied. The stop work order shall be in writing, shall describe the non-compliance in detail, and shall be sent to the owner or operator. If any human remains or archaeological remains are encountered during excavation, the owner or operator must immediately cease, or cause to cease, all construction activity in the area of the remains and notify the appropriate Regional Water Engineer (RWE). Construction activity shall not resume until written permission to do so has been received from the RWE. B. Continuation of the Expired General Permit This permit expires five (5) years from the effective date. If a new general permit is not issued prior to the expiration of this general permit, an owner or operator with coverage under this permit may continue to operate and discharge in accordance with the terms and conditions of this general permit, if it is extended pursuant to the State Administrative Procedure Act and 6 NYCRR Part 621, until a new general permit is issued. C. Enforcement Failure of the owner or operator, its contractors, subcontractors, agents and/or assigns to strictly adhere to any of the permit requirements contained herein shall constitute a violation of this permit. There are substantial criminal, civil, and administrative penalties associated with violating the provisions of this permit. Fines of up to $37,500 per day for each violation and imprisonment for up to fifteen (15) years may be assessed depending upon the nature and degree of the offense. D. Need to Halt or Reduce Activity Not a Defense It shall not be a defense for an owner or operator in an enforcement action that it would have been necessary to halt or reduce the construction activity in order to maintain compliance with the conditions of this permit. (Part V.A.5) 5. For construction activities that require post -construction stormwater management practices and meet subdivision 2a. of this Part, the owner or operator must, prior to submitting the NOT, ensure one of the following: a. the post -construction stormwater management practice(s) and any right- of-way(s) needed to maintain such practice(s) have been deeded to the municipality in which the practice(s) is located, b. an executed maintenance agreement is in place with the municipality that will maintain the post -construction stormwater management practice(s), c. for post -construction stormwater management practices that are privately owned, the owner or operator has a mechanism in place that requires operation and maintenance of the practice(s) in accordance with the operation and maintenance plan, such as a deed covenant in the owner or operator's deed of record, d. for post -construction stormwater management practices that are owned by a public or private institution (e.g. school, university, hospital), government agency or authority, or public utility; the owner or operator has policy and procedures in place that ensures operation and maintenance of the practices in accordance with the operation and maintenance plan. Part VI. REPORTING AND RETENTION OF RECORDS A. Record Retention The owner or operator shall retain a copy of the NOI, NOI Acknowledgment Letter, SWPPP, MS4 SWPPP Acceptance form and any inspection reports that were prepared in conjunction with this permit for a period of at least five (5) years from the date that the Department receives a complete NOT submitted in accordance with Part V. of this general permit. B. Addresses With the exception of the NOI, NOT, and MS4 SWPPP Acceptance form (which must be submitted to the address referenced in Part II.A.1 of this permit), all written correspondence requested by the Department, including individual permit applications, shall be sent to the address of the appropriate DOW Water (SPDES) Program contact at the Regional Office listed in Appendix F. (Part VILE) E. Duty to Mitigate The owner or operator and its contractors and subcontractors shall take all reasonable steps to minimize or prevent any discharge in violation of this permit which has a reasonable likelihood of adversely affecting human health or the environment. F. Duty to Provide Information The owner or operator shall furnish to the Department, within a reasonable specified time period of a written request, all documentation necessary to demonstrate eligibility and any information to determine compliance with this permit or to determine whether cause exists for modifying or revoking this permit, or suspending or denying coverage under this permit, in accordance with the terms and conditions of this permit. The NOI, SWPPP and inspection reports required by this permit are public documents that the owner or operator must make available for review and copying by any person within five (5) business days of the owner or operator receiving a written request by any such person to review these documents. Copying of documents will be done at the requester's expense. G. Other Information When the owner or operator becomes aware that they failed to submit any relevant facts, or submitted incorrect information in the NOI or in any of the documents required by this permit , or have made substantive revisions to the SWPPP (e.g. the scope of the project changes significantly, the type of post -construction stormwater management practice(s) changes, there is a reduction in the sizing of the post - construction stormwater management practice, or there is an increase in the disturbance area or impervious area), which were not reflected in the original NOI submitted to the Department, they shall promptly submit such facts or information to the Department using the contact information in Part II.A. of this permit. Failure of the owner or operator to correct or supplement any relevant facts within five (5) business days of becoming aware of the deficiency shall constitute a violation of this permit. H. Signatory Requirements 1. All NOls and NOTs shall be signed as follows: a. For a corporation these forms shall be signed by a responsible corporate officer. For the purpose of this section, a responsible corporate officer means: (i) a president, secretary, treasurer, or vice-president of the (Part VII.H.1.a.i) corporation in charge of a principal business function, or any other person who performs similar policy or decision-making functions for the corporation; or (ii) the manager of one or more manufacturing, production or operating facilities, provided the manager is authorized to make management decisions which govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long term environmental compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures; b. For a partnership or sole proprietorship these forms shall be signed by a general partner or the proprietor, respectively; or c. For a municipality, State, Federal, or other public agency these forms shall be signed by either a principal executive officer or ranking elected official. For purposes of this section, a principal executive officer of a Federal agency includes: the chief executive officer of the agency, or (ii) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency (e.g., Regional Administrators of EPA). ' The SWPPP and other information requested by the Department shall be signed by a person described in Part VII.H.1. of this permit or by a duly authorized representative of that person. A person is a duly authorized representative only if: (Part VII.K.1) a. The authorization is made in writing by a person described in Part VII.H.1. of this permit; b. The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity, such as the position of plant manager, operator of a well or a well field, superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the company. (A duly authorized representative may thus be either a named 33 discharge under this general permit shall be terminated. Applications must be submitted to the appropriate Permit Administrator at the Regional Office. The Department may grant additional time upon demonstration, to the satisfaction of the Department, that additional time to apply for an alternative authorization is necessary or where the Department has not provided a permit determination in accordance with Part 621 of this Title. 2 When an individual SPDES permit is issued to a discharger authorized to discharge under a general SPDES permit for the same discharge(s), the general permit authorization for outfalls authorized under the individual SPDES permit is automatically terminated on the effective date of the individual permit unless termination is earlier in accordance with 6 NYCRR Part 750. L. Proper Operation and Maintenance The owner or operator shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the owneroroperatorto achieve compliance with the conditions of this permit and with the requirements of the SWPPP. M. Inspection and Entry The owner or operator shall allow an authorized representative of the Department, EPA, applicable county health department, or, in the case of a construction site which discharges through an MS4, an authorized representative of the MS4 receiving the discharge, upon the presentation of credentials and other documents as may be required by law, to: 1. Enter upon the owner's or operator's premises where a regulated facility or activity is located or conducted or where records must be kept under the conditions of this permit; Have access to and copy at reasonable times, any records that must be kept under the conditions of this permit; and 3. Inspect at reasonable times any facilities or equipment (including monitoring and control equipment), practices or operations regulated or required by this permit. 4. Sample or monitor at reasonable times, for purposes of assuring permit compliance or as otherwise authorized by the Act or ECL, any substances or parameters at any location. (Part VII.H.2.b) individual or any individual occupying a named position) and, c. The written authorization shall include the name, title and signature of the authorized representative and be attached to the SWPPP. 3. All inspection reports shall be signed by the qualified inspector that performs the inspection. 4. The MS4 SWPPP Acceptance form shall be signed by the principal executive officer or ranking elected official from the regulated, traditional land use control MS4, or by a duly authorized representative of that person. It shall constitute a permit violation if an incorrect and/or improper signatory authorizes any required forms, SWPPP and/or inspection reports. I. Property Rights The issuance of this permit does not convey any property rights of any sort, nor any exclusive privileges, nor does it authorize any injury to private property nor any invasion of personal rights, nor any infringement of Federal, State or local laws or regulations. Owners or operators must obtain any applicable conveyances, easements, licenses and/or access to real property prior to commencing construction activity. J. Severability The provisions of this permit are severable, and if any provision of this permit, or the application of any provision of this permit to any circumstance, is held invalid, the application of such provision to other circumstances, and the remainder of this permit shall not be affected thereby. K. Requirement to Obtain Coverage Under an Alternative Permit 1. The Department may require any owner or operator authorized by this permit to apply for and/or obtain either an individual SPDES permit or another SPDES general permit. When the Department requires any discharger authorized by a general permit to apply for an individual SPDES permit, it shall notify the discharger in writing that a permit application is required. This notice shall include a brief statement of the reasons for this decision, an application form, a statement setting a time frame for the owner or operator to file the application for an individual SPDES permit, and a deadline, not sooner than 180 days from owner or operator receipt of the notification letter, whereby the authorization to 34 (Part VII.N) N. Permit Actions This permit may, at any time, be modified, suspended, revoked, or renewed by the Department in accordance with 6 NYCRR Part 621. The filing of a request by the owner or operator for a permit modification, revocation and reissuance, termination, a notification of planned changes or anticipated noncompliance does not limit, diminish and/or stay compliance with any terms of this permit. O. Definitions Definitions of key terms are included in Appendix A of this permit. P. Re -Opener Clause 1. If there is evidence indicating potential or realized impacts on water quality due to any stormwater discharge associated with construction activity covered by this permit, the owner or operator of such discharge may be required to obtain an individual permit or alternative general permit in accordance with Part VII.K. of this permit or the permit may be modified to include different limitations and/or requirements. f Any Department initiated permit modification, suspension or revocation will be conducted in accordance with 6 NYCRR Part 621, 6 NYCRR 750-1.18, and 6 NYCRR 750-1.20. Q. Penalties for Falsification of Forms and Reports In accordance with 6NYCRR Part 750-2.4 and 750-2.5, any person who knowingly makes any false material statement, representation, or certification in any application, record, report or other document filed or required to be maintained under this permit, including reports of compliance or noncompliance shall, upon conviction, be punished in accordance with ECL §71-1933 and or Articles 175 and 210 of the New York State Penal Law. R. Other Permits Nothing in this permit relieves the owner or operator from a requirement to obtain any other permits required by law. 35 36 APPENDIX A Definitions Alter Hydrology from Pre to Post -Development Conditions - means the post - development peak flow rate(s) has increased by more than 5% of the pre -developed condition for the design storm of interest (e.g. 10 yr and 100 yr). Combined Sewer - means a sewer that is designed to collect and convey both "sewage" and "stormwater". Commence (Commencement of) Construction Activities - means the initial disturbance of soils associated with clearing, grading or excavation activities; or other construction related activities that disturb or expose soils such as demolition, stockpiling of fill material, and the initial installation of erosion and sediment control practices required in the SWPPP. See definition for "Construction Activity(ies)" also. Construction Activity(ies) - means any clearing, grading, excavation, filling, demolition or stockpiling activities that result in soil disturbance. Clearing activities can include, but are not limited to, logging equipment operation, the cutting and skidding of trees, stump removal and/or brush root removal. Construction activity does not include routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of a facility. Direct Discharge (to a specific surface waterbody) - means that runoff flows from a construction site by overland flow and the first point of discharge is the specific surface waterbody, or runoff flows from a construction site to a separate storm sewer system and the first point of discharge from the separate storm sewer system is the specific surface waterbody. Discharge(s) - means any addition of any pollutant to waters of the State through an outlet or point source. Environmental Conservation Law (ECL) - means chapter 43-B of the Consolidated Laws of the State of New York, entitled the Environmental Conservation Law. Equivalent (Equivalence) — means that the practice or measure meets all the performance, longevity, maintenance, and safety objectives of the technical standard and will provide an equal or greater degree of water quality protection. Final Stabilization - means that all soil disturbance activities have ceased and a uniform, perennial vegetative cover with a density of eighty (80) percent over the entire pervious surface has been established; or other equivalent stabilization measures, such as permanent landscape mulches, rock rip -rap or washed/crushed stone have been applied ditches, man-made channels, or storm drains): (i) Owned or operated by a State, city, town, borough, county, parish, district, association, or other public body (created by or pursuant to State law) having jurisdiction over disposal of sewage, industrial wastes, stormwater, or other wastes, including special districts under State law such as a sewer district, flood control district or drainage district, or similar entity, or an Indian tribe or an authorized Indian tribal organization, or a designated and approved management agency under section 208 of the CWA that discharges to surface waters of the State, (ii) Designed or used for collecting or conveying stormwater; (iii) Which is not a combined sewer, and (iv) Which is not part of a Publicly Owned Treatment Works (POTW) as defined at 40 CFR 122.2. National Pollutant Discharge Elimination System (NPDES) - means the national system for the issuance of wastewater and stormwater permits under the Federal Water Pollution Control Act (Clean Water Act). New Development — means any land disturbance that does not meet the definition of Redevelopment Activity included in this appendix. NOI Acknowledgment Letter - means the letter that the Department sends to an owner or operator to acknowledge the Department's receipt and acceptance of a complete Notice of Intent. This letter documents the owner's or operator's authorization to discharge in accordance with the general permit for stormwater discharges from construction activity. Owner or Operator - means the person, persons or legal entity which owns or leases the property on which the construction activity is occurring; and/or an entity that has operational control over the construction plans and specifications, including the ability to make modifications to the plans and specifications. Performance Criteria — means the design criteria listed under the "Required Elements" sections in Chapters 5, 6 and 10 of the technical standard, New York State Stormwater Management Design Manual, dated January 2015. It does not include the Sizing Criteria (i.e. WQv, RRv, Cpv, Qp and Qf ) in Part I.C.2. of the permit. Pollutant - means dredged spoil, filter backwash, solid waste, incinerator residue, sewage, garbage, sewage sludge, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand and industrial, municipal, agricultural waste and ballast discharged into water; which may cause or might reasonably be expected to cause pollution of the waters of the state in contravention of the standards or guidance values adopted as provided in 6 NYCRR Parts 700 et seq . on all disturbed areas that are not covered by permanent structures, concrete or pavement. General SPDES permit - means a SPDES permit issued pursuant to 6 NYCRR Part 750 1.21 and Section 70-0117 of the ECL authorizing a category of discharges. Groundwater(s) - means waters in the saturated zone. The saturated zone is a subsurface zone in which all the interstices are filled with water under pressure greater than that of the atmosphere. Although the zone may contain gas-filled interstices or interstices filled with fluids other than water, it is still considered saturated. Historic Property — means any building, structure, site, object or district that is listed on the State or National Registers of Historic Places or is determined to be eligible for listing on the State or National Registers of Historic Places. Impervious Area (Cover) - means all impermeable surfaces that cannot effectively infiltrate rainfall. This includes paved, concrete and gravel surfaces (i.e. parking lots, driveways, roads, runways and sidewalks); building rooftops and miscellaneous impermeable structures such as patios, pools, and sheds. Infeasible — means not technologically possible, or not economically practicable and achievable in light of best industry practices. Larger Common Plan of Development or Sale - means a contiguous area where multiple separate and distinct construction activities are occurring, or will occur, under one plan. The term "plan" in "larger common plan of development or sale" is broadly defined as any announcement or piece of documentation (including a sign, public notice or hearing, marketing plan, advertisement, drawing, permit application, State Environmental Quality Review Act (SEQRA) environmental assessment form or other documents, zoning request, computer design, etc.) or physical demarcation (including boundary signs, lot stakes, surveyor markings, etc.) indicating that construction activities may occur on a specific plot. For discrete construction projects that are located within a larger common plan of development or sale that are at least 1/4 mile apart, each project can be treated as a separate plan of development or sale provided any interconnecting road, pipeline or utility project that is part of the same "common plan" is not concurrently being disturbed. Minimize — means reduce and/or eliminate to the extent achievable using control measures (including best management practices) that are technologically available and economically practicable and achievable in light of best industry practices. Municipal Separate Storm Sewer (MS4) - a conveyance or system of conveyances (including roads with drainage systems, municipal streets, catch basins, curbs, gutters, Qualified Inspector - means a person that is knowledgeable in the principles and practices of erosion and sediment control, such as a licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered Landscape Architect, or other Department endorsed individual(s). It can also mean someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided that person has training in the principles and practices of erosion and sediment control. Training in the principles and practices of erosion and sediment control means that the individual working under the direct supervision of the licensed Professional Engineer or Registered Landscape Architect has received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity. After receiving the initial training, the individual working under the direct supervision of the licensed Professional Engineer or Registered Landscape Architect shall receive four (4) hours of training every three (3) years. It can also mean a person that meets the Qualified Professional qualifications in addition to the Qualified Inspector qualifications. Note: Inspections of any post -construction stormwater management practices that include structural components, such as a dam for an impoundment, shall be performed by a licensed Professional Engineer. Qualified Professional - means a person that is knowledgeable in the principles and practices of stormwater management and treatment, such as a licensed Professional Engineer, Registered Landscape Architect or other Department endorsed individual(s). Individuals preparing SWPPPs that require the post -construction stormwater management practice component must have an understanding of the principles of hydrology, water quality management practice design, water quantity control design, and, in many cases, the principles of hydraulics. All components of the SWPPP that involve the practice of engineering, as defined by the NYS Education Law (see Article 145), shall be prepared by, or under the direct supervision of, a professional engineer licensed to practice in the State of New York.. Redevelopment Activity(ies) — means the disturbance and reconstruction of existing impervious area, including impervious areas that were removed from a project site within five (5) years of preliminary project plan submission to the local government (i.e. site plan, subdivision, etc.). Regulated, Traditional Land Use Control MS4 - means a city, town or village with land use control authority that is required to gain coverage under New York State DEC's SPDES General Permit For Stormwater Discharges from Municipal Separate Stormwater Sewer Systems (MS4s). Routine Maintenance Activity - means construction activity that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of a facility, including, but not limited to- - Re -grading of gravel roads or parking lots, - Stream bank restoration projects (does not include the placement of spoil material), - Cleaning and shaping of existing roadside ditches and culverts that maintains the approximate original line and grade, and hydraulic capacity of the ditch, - Cleaning and shaping of existing roadside ditches that does not maintain the approximate original grade, hydraulic capacity and purpose of the ditch if the changes to the line and grade, hydraulic capacity or purpose of the ditch are installed to improve water quality and quantity controls (e.g. installing grass lined ditch), - Placement of aggregate shoulder backing that makes the transition between the road shoulder and the ditch or embankment, - Full depth milling and filling of existing asphalt pavements, replacement of concrete pavement slabs, and similar work that does not expose soil or disturb the bottom six (6) inches of subbase material, - Long-term use of equipment storage areas at or near highway maintenance facilities, - Removal of sediment from the edge of the highway to restore a previously existing sheet -flow drainage connection from the highway surface to the highway ditch or embankment, - Existing use of Canal Corp owned upland disposal sites for the canal, and - Replacement of curbs, gutters, sidewalks and guide rail posts. Site limitations — means site conditions that prevent the use of an infiltration technique and or infiltration of the total WQv. Typical site limitations include: seasonal high groundwater, shallow depth to bedrock, and soils with an infiltration rate less than 0.5 inches/hour. The existence of site limitations shall be confirmed and documented using actual field testing (i.e. test pits, soil borings, and infiltration test) or using information from the most current United States Department of Agriculture (USDA) Soil Survey for the County where the project is located. Sizing Criteria — means the criteria included in Part I.C.2 of the permit that are used to size post -construction stormwater management control practices. The criteria include; Water Quality Volume (WQv), Runoff Reduction Volume (RRv), Channel Protection Volume (Cpv), Overbank Flood (Qp), and Extreme Flood (Qf). State Pollutant Discharge Elimination System (SPDES) - means the system established pursuant to Article 17 of the ECL and 6 NYCRR Part 750 for issuance of permits authorizing discharges to the waters of the state. Steep Slope — means land area with a Soil Slope Phase that is identified as an E or F, or 621 of the Environmental Conservation Law (ECL), Article 70. Water Quality Standard - means such measures of purity or quality for any waters in relation to their reasonable and necessary use as promulgated in 6 NYCRR Part 700 et seq. the map unit name is inclusive of 25% or greater slope, on the United States Department of Agriculture ("USDA") Soil Survey for the County where the disturbance will occur. Surface Waters of the State - shall be construed to include lakes, bays, sounds, ponds, impounding reservoirs, springs, rivers, streams, creeks, estuaries, marshes, inlets, canals, the Atlantic ocean within the territorial seas of the state of New York and all other bodies of surface water, natural or artificial, inland or coastal, fresh or salt, public or private (except those private waters that do not combine or effect a junction with natural surface waters), which are wholly or partially within or bordering the state or within its jurisdiction. Waters of the state are further defined in 6 NYCRR Parts 800 to 941. Temporarily Ceased — means that an existing disturbed area will not be disturbed again within 14 calendar days of the previous soil disturbance. Temporary Stabilization - means that exposed soil has been covered with material(s) as set forth in the technical standard, New York Standards and Specifications for Erosion and Sediment Control, to prevent the exposed soil from eroding. The materials can include, but are not limited to, mulch, seed and mulch, and erosion control mats (e.g. jute twisted yarn, excelsior wood fiber mats). Total Maximum Daily Loads (TMDLs) - A TMDL is the sum of the allowable loads of a single pollutant from all contributing point and nonpoint sources. It is a calculation of the maximum amount of a pollutant that a waterbody can receive on a daily basis and still meet water quality standards, and an allocation of that amount to the pollutant's sources. A TMDL stipulates wasteload allocations (WLAs) for point source discharges, load allocations (LAS) for nonpoint sources, and a margin of safety (MOS). Trained Contractor - means an employee from the contracting (construction) company, identified in Part III.A.6., that has received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity. After receiving the initial training, the trained contractor shall receive four (4) hours of training every three (3) years. It can also mean an employee from the contracting (construction) company, identified in Part I II.A.6., that meets the qualified inspector qualifications (e.g. licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered Landscape Architect, or someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided they have received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity). The trained contractor is responsible for the day to day implementation of the SWPPP. Uniform Procedures Act (UPA) Permit - means a permit required under 6 NYCRR Part 42 APPENDIX B Required SWPPP Components by Project Type Table 1 CONSTRUCTION ACTIVITIES THAT REQUIRE THE PREPARATION OF A SWPPP THAT ONLY INCLUDES EROSION AND SEDIMENT CONTROLS The following construction activities that involve soil disturbances of one (1) or more acres of land, but less than five (5) acres: • Single family home not located in one of the watersheds listed in Appendix C or not directly discharging to one of the 303(d) segments listed in Appendix E • Single family residential subdivisions with 25% or less impervious cover at total site build -out and not located in one of the watersheds listed in Appendix C and not directly discharging to one of the 303(d) segments listed in Appendix E • Construction of a barn or other agricultural building, silo, stock yard or pen. The following construction activities that involve soil disturbances of one (1) or more acres of land: • Installation of underground, linear utilities; such as gas lines, fiber-optic cable, cable TV, electric, telephone, sewer mains, and water mains • Environmental enhancement projects, such as wetland mitigation projects, stormwater retrofits and stream restoration projects • Bike paths and trails • Sidewalk construction projects that are not part of a road/ highway construction or reconstruction project • Slope stabilization projects • Slope flattening that changes the grade of the site, but does not significantly change the runoff characteristics • Spoil areas that will be covered with vegetation • Land clearing and grading for the purposes of creating vegetated open space (i.e. recreational parks, lawns, meadows, fields), excluding projects that alter hydrology from pre to post development conditions • Athletic fields (natural grass) that do not include the construction or reconstruction of impervious area and do not alter hydrology from pre to post development conditions • Demolition project where vegetation will be established and no redevelopment is planned • Overhead electric transmission line project that does not include the construction of permanent access roads or parking areas surfaced with impervious cover • Structural practices as identified in Table II in the "Agricultural Management Practices Catalog for Nonpoint Source Pollution in New York State", excluding projects that involve soil disturbances of less than five acres and construction activities that include the construction or reconstruction of impervious area The following construction activities that involve soil disturbances between five thousand (5000) square feet and one (1) acre of land: All construction activities located in the watersheds identified in Appendix D that involve soil disturbances between five thousand (5,000) square feet and one (1) acre of land. 43 44 Table 2 CONSTRUCTION ACTIVITIES THAT REQUIRE THE PREPARATION OF A SWPPP THAT INCLUDES POST -CONSTRUCTION STORMWATER MANAGEMENT PRACTICES The following construction activities that involve soil disturbances of one (1) or more acres of land: • Single family home located in one of the watersheds listed in Appendix C or directly discharging to one of the 303(d) segments listed in Appendix E • Single family residential subdivisions located in one of the watersheds listed in Appendix C or directly discharging to one of the 303(d) segments listed in Appendix E • Single family residential subdivisions that involve soil disturbances of between one (1) and five (5) acres of land with greater than 25% impervious cover at total site build -out • Single family residential subdivisions that involve soil disturbances of five (5) or more acres of land, and single family residential subdivisions that involve soil disturbances of less than five (5) acres that are part of a larger common plan of development or sale that will ultimately disturb five or more acres of land • Multi -family residential developments; includes townhomes, condominiums, senior housing complexes, apartment complexes, and mobile home parks • Airports • Amusement parks • Campgrounds • Cemeteries that include the construction or reconstruction of impervious area (>5% of disturbed area) or alter the hydrology from pre to post development conditions • Commercial developments • Churches and other places of worship • Construction of a barn or other agricultural building(e.g. silo) and structural practices as identified in Table II in the "Agricultural Management Practices Catalog for Nonpoint Source Pollution in New York State" that include the construction or reconstruction of impervious area, excluding projects that involve soil disturbances of less than five acres. • Golf courses • Institutional, includes hospitals, prisons, schools and colleges • Industrial facilities, includes industrial parks • Landfills • Municipal facilities; includes highway garages, transfer stations, office buildings, POTW's and water treatment plants • Office complexes • Sports complexes • Racetracks, includes racetracks with earthen (dirt) surface • Road construction or reconstruction • Parking lot construction or reconstruction • Athletic fields (natural grass) that include the construction or reconstruction of impervious area (>5% of disturbed area) or alter the hydrology from pre to post development conditions • Athletic fields with artificial turf • Permanent access roads, parking areas, substations, compressor stations and well drilling pads, surfaced with impervious cover, and constructed as part of an over -head electric transmission line project , wind -power project, cell tower project, oil or gas well drilling project, sewer or water main project or other linear utility project • All other construction activities that include the construction or reconstruction of impervious area or alter the hydrology from pre to post development conditions, and are not listed in Table 1 45 Figure 1 - New York City Watershed East of the Hudson EEKIVIAN EAST FISHKILL PAWL ING � d { y ATTERSO N , NT SOUTHEAST o PUT AM VAL L r-+ B&�WSTER CARMEL � F�TH SAI.E�I S�?hdEFS ..Y RKTOW EDFO:RD M UN K GO W CA.9TLE !- RTH CAS: M. U LEASANT HA SON E Old al ecshe�d APPENDIX C Watersheds Where Enhanced Phosphorus Removal Standards Are Required Watersheds where owners or operators of construction activities identified in Table 2 of Appendix B must prepare a SWPPP that includes post -construction stormwater management practices designed in conformance with the Enhanced Phosphorus Removal Standards included in the technical standard, New York State Stormwater Management Design Manual ("Design Manual"). • Entire New York City Watershed located east of the Hudson River - Figure 1 • Onondaga Lake Watershed - Figure 2 • Greenwood Lake Watershed -Figure 3 • Oscawana Lake Watershed — Figure 4 • Kinderhook Lake Watershed — Figure 5 46 Figure 2 - Onondaga Lake Watershed 47 48 APPENDIX E List of 303(d) segments impaired by pollutants related to construction activity (e.g. silt, sediment or nutrients). Owners or operators of single family home and single family residential subdivisions with 25% or less total impervious cover at total site build -out that involve soil disturbances of one or more acres of land, but less than 5 acres, and directly discharge to one of the listed segments below shall prepare a SWPPP that includes post -construction stormwater management practices designed in conformance with the New York State Stormwater Management Design Manual ("Design Manual"), dated January 2015. COUNTY WATERBODY COUNTY WATERBODY Albany Ann Lee (Shakers) Pond, Stump Pond Greene Sleepy Hollow Lake Albany Basic Creek Reservoir Herkimer Steele Creek tribs Allegheny Amity Lake, Saunders Pond Kings Hendrix Creek Bronx Van Cortlandt Lake Lewis Mill Creek/South Branch and tribs Broome Whitney Point Lake/Reservoir Livingston Conesus Lake Broome Fly Pond, Deer Lake Livingston Jaycox Creek and tribs Broome Minor Tribs to Lower Susquehanna Livingston Mill Creek and minor tribs BROOME, CAYUGA, CHENANGO, CORTLAND, MADISON, ONONDAGA, OSWEGO, TIOGA AND TOMPKINS (north) Livingston Bradner Creek and tribs Cattaraugus Allegheny River/Reservoir Livingston Christie Creek and tribs Cattaraugus Case Lake Monroe Lake Ontario Shoreline, Western Cattaraugus Linlyco/Club Pond Monroe Mill Creek/Blue Pond Outlet and tribs Cayuga Duck Lake Monroe Rochester Embayment - East Chautauqua Chautauqua Lake, North Monroe Rochester Embayment - West Chautauqua Chautauqua Lake, South Monroe Unnamed Trib to Honeoye Creek Chautauqua Bear Lake Monroe Genesee River, Lower, Main Stem Chautauqua Chadakoin River and tribs Monroe Genesee River, Middle, Main Stem Chautauqua Lower Cassadaga Lake Monroe Black Creek, Lower, and minor tribs Chautauqua Middle Cassadaga Lake Monroe Buck Pond Chautauqua Findley Lake Monroe Long Pond Clinton Great Chazy River, Lower, Main Stem Monroe Cranberry Pond Columbia Kinderhook Lake Monroe Mill Creek and tribs Columbia Robinson Pond Monroe Shipbuilders Creek and tribs Dutchess Hillside Lake Monroe Minor tribs to Irondequoit Bay Dutchess Wappinger Lakes Monroe Thomas Creek/White Brook and tribs Dutchess Fall Kill and tribs Nassau Glen Cove Creek, Lower, and tribs Erie Green Lake Nassau LI Tribs (fresh) to East Bay Erie Scajaquada Creek, Lower, and tribs Nassau East Meadow Brook, Upper, and tribs Erie Scajaquada Creek, Middle, and tribs Nassau Hempstead Bay Erie Scajaquada Creek, Upper, and tribs Nassau Hempstead Lake Erie Rush Creek and tribs Nassau Grant Park Pond Erie Ellicott Creek, Lower, and tribs Nassau Beaver Lake Erie Beeman Creek and tribs Nassau Camaans Pond Erie Murder Creek, Lower, and tribs Nassau Halls Pond Erie South Branch Smoke Cr, Lower, and Nassau LI Tidal Tribs to Hempstead Bay Westchester tribs Nassau Massapequa Creek and tribs Erie Little Sister Creek, Lower, and tribs Nassau Reynolds Channel, east Essex Lake George (primary county: Warren) Nassau Reynolds Channel, west Genesee Black Creek, Upper, and minor tribs Nassau Silver Lake, Lofts Pond Genesee Tonawanda Creek, Middle, Main Stem Nassau Woodmere Channel Genesee Oak Orchard Creek, Upper, and tribs Niagara Hyde Park Lake Genesee Bowen Brook and tribs Niagara Lake Ontario Shoreline, Western Genesee Bigelow Creek and tribs Niagara Bergholtz Creek and tribs Genesee Black Creek, Middle, and minor tribs Oneida Ballou, Nail Creeks Genesee LeRoy Reservoir Onondaga Ley Creek and tribs Greene Schoharie Reservoir Onondaga Onondaga Creek, Lower and tribs APPENDIX F LIST OF NYS DEC REGIONAL OFFICES Region COVERING THE FOLLOWING COUNTIES: DIVISION OF ENVIRONMENTAL PERMITS (DEP) PERMIT ADMINISTRATORS DIVISION OF WATER (DOW) WATER (SPDES) PROGRAM Onondaga 1 NASSAU AND SUFFOLK 50 CIRCLE ROAD STONY BROOK, NY 11790 TEL. (631) 444-0365 50 CIRCLE ROAD STONY BROOK, NY 11790-3409 TEL. (631) 444-0405 2 BRONX, KINGS, NEW YORK, QUEENS AND RICHMOND 1 HUNTERS POINT PLAZA, 47 -4021ST ST. LONG ISLAND CITY, NY 11101-5407 TEL. (718) 482-4997 1 HUNTERS POINT PLAZA, 47 -4021ST ST. LONG ISLAND CITY, NY 11101-5407 TEL. (718) 482-4933 3 DUTCHESS, ORANGE, PUTNAM, ROCKLAND, SULLIVAN, ULSTER AND WESTCHESTER 21 SOUTH PUTT CORNERS ROAD NEW PALTz, NY 1 2561-1 696 TEL. (845) 256-3059 100 HILLSIDE AVENUE, SUITE 1W WHITE PLAINS, NY 10603 TEL. (914) 428 - 2505 4 ALBANY, COLUMBIA, DELAWARE, GREENE, MONTGOMERY, OTSEGO, RENSSELAER, SCHENECTADY AND SCHOHARIE 1150 NORTH WESTCOTT ROAD SCHENECTADY, NY 12306-2014 TEL. (518) 357-2069 1130 NORTH WESTCOTT ROAD SCHENECTADY, NY 12306-2014 TEL. (518) 357-2045 5 CLINTON, ESSEX, FRANKLIN, FULTON, HAMILTON, SARATOGA, WARREN AND WASHINGTON 1115 STATE ROUTE 86, PO BOX 296 RAY BROOK, NY 12977-0296 TEL. (518) 897-1234 232 GOLF COURSE ROAD WARRENSBURG, NY 12885-1172 TEL. (518) 623-1200 6 HERKIMER, JEFFERSON, LEWIS, ONEIDA AND ST. LAWRENCE STATE OFFICE BUILDING 317 WASHINGTON STREET WATERTOWN, NY 13601-3787 TEL. (315) 785-2245 STATE OFFICE BUILDING 207 GENESEE STREET UTICA, NY 13501-2885 TEL. (315) 793-2554 7 BROOME, CAYUGA, CHENANGO, CORTLAND, MADISON, ONONDAGA, OSWEGO, TIOGA AND TOMPKINS 615 ERIE BLVD. WEST SYRACUSE, NY 13204-2400 TEL. (315) 426-7438 615 ERIE BLVD. WEST SYRACUSE, NY 13204-2400 TEL. (315) 426-7500 8 CHEMUNG, GENESEE, LIVINGSTON, MONROE, ONTARIO, ORLEANS, SCHUYLER,SENECA, STEUBEN, WAYNE AND YATES 6274 EAST AVON -LIMA ROAD AVON, NY 14414-9519 TEL. (585) 226-2466 6274 EAST AVON -LIMA RD. AVON, NY 14414-9519 TEL. (585) 226-2466 9 ALLEGANY, CATTARAUGUS, CHAUTAUQUA, ERIE, NIAGARA AND WYOMING 270 MICHIGAN AVENUE BUFFALO, NY 14203-2999 TEL. (716) 851-7165 270 MICHIGAN AVE. BUFFALO, NY 14203-2999 TEL. (716) 851-7070 APPENDIX E List of 303(d) segments impaired by pollutants related to construction activity, cont'd. COUNTY WATERBODY COUNTY WATERBODY Onondaga Onondaga Creek, Middle and tribs Suffolk Great South Bay, West Onondaga Onondaga Creek, Upp, and minor tribs Suffolk Mill and Seven Ponds Onondaga Harbor Brook, Lower, and tribs Suffolk Moriches Bay, East Onondaga Ninemile Creek, Lower, and tribs Suffolk Moriches Bay, West Onondaga Minor tribs to Onondaga Lake Suffolk Quantuck Bay Onondaga Onondaga Creek, Lower, and tribs Suffolk Shinnecock Bay (and Inlet) Ontario Honeoye Lake Sullivan Bodine, Montgomery Lakes Ontario Hemlock Lake Outlet and minor tribs Sullivan Davies Lake Ontario Great Brook and minor tribs Sullivan Pleasure Lake Orange Monhagen Brook and tribs Sullivan Swan Lake Orange Orange Lake Tompkins Cayuga Lake, Southern End Orleans Lake Ontario Shoreline, Western Tompkins Owasco Inlet, Upper, and tribs Oswego Pleasant Lake Ulster Ashokan Reservoir Oswego Lake Neatahwanta Ulster Esopus Creek, Upper, and minor Putnam Oscawana Lake tribs Putnam Palmer Lake Ulster Esopus Creek, Lower, Main Stem Putnam Lake Carmel Ulster Esopus Creek, Middle, and minor Queens Jamaica Bay, Eastern, and tribs (Queens) tribs Queens Bergen Basin Warren Lake George Queens Shellbank Basin Warren Tribs to L.George, Village of L Rensselaer Nassau Lake George Rensselaer Snyders Lake Warren Huddle/Finkle Brooks and tribs Richmond Grasmere, Arbutus and Wolfes Lakes Warren Indian Brook and tribs Rockland Congers Lake, Swartout Lake Warren Hague Brook and tribs Rockland Rockland Lake Washington Tribs to L.George, East Shr Lk Saratoga Ballston Lake George Saratoga Round Lake Washington Cossayuna Lake Saratoga Dwaas Kill and tribs Washington Wood Cr/Champlain Canal, minor Saratoga Tribs to Lake Lonely tribs Saratoga Lake Lonely Wayne Port Bay Schenectady Collins Lake Wayne Marbletown Creek and tribs Schenectady Duane Lake Westchester Lake Katonah Schenectady Mariaville Lake Westchester Lake Mohegan Schoharie Engleville Pond Westchester Lake Shenorock Schoharie Summit Lake Westchester Reservoir No.1 (Lake Isle) Schuyler Cayuta Lake Westchester Saw Mill River, Middle, and tribs St. Lawrence Fish Creek and minor tribs Westchester Silver Lake St. Lawrence Black Lake Outlet/Black Lake Westchester Teatown Lake Steuben Lake Salubria Westchester Truesdale Lake Steuben Smith Pond Westchester Wallace Pond Suffolk Millers Pond Westchester Peach Lake Suffolk Mattituck (Marratooka) Pond Westchester Mamaroneck River, Lower Suffolk Tidal tribs to West Moriches Bay Westchester Mamaroneck River, Upp, and tribs Suffolk Canaan Lake Westchester Sheldrake River and tribs Suffolk Lake Ronkonkoma Westchester Blind Brook, Lower Suffolk Beaverdam Creek and tribs Westchester Blind Brook, Upper, and tribs Suffolk Big/Little Fresh Ponds Westchester Lake Lincolndale Suffolk Fresh Pond Westchester Lake Meahaugh Suffolk Great South Bay, East Wyoming Java Lake Suffolk Great South Bay, Middle Wyoming Silver Lake Note: The list above identities those waters trom the tinal New York State "2014 Section 303(d) List of Impaired Waters Requiring a TMDL/Other Strategy", dated January 2015, that are impaired by silt, sediment or nutrients. 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