HomeMy WebLinkAbout20230861 400 Louden SUP Unitarian Universalist Congregation 1990 Hydrologist ReportI-.
}March 20, 1990
Kr, Geoff 1arnemaan
a
-City F lannar
City Hall
Sar&t0ga .prf ago , NY 12 B-U Q
RE 3 Groun4vate r Re*bu tc-& £ ha r mc: U , i x A r i 0-L, Pr4Dpor+1E!d 509 Mesdow'
Flanor . 0
Dear Kr. SoiY`*M&nn 3 r�
This lettag report Summarises o'er pros 1JM1 arY Ova luatiOh of t
ho
potential for devaloping Individual groundwater euppL valle *n
site. In ,gemsraL the mite is underlaid by two aquliars, the
e.Ur#fiXLal sand aquifer aM4 the bedsock aquil0r.
The surf Lci.a1 q&Q14 V of the site and 011rround ing stL dg area
incorporate glm&14Li lake depoaite consietlnq of ii" sands,
Urik1ing lrnfardatiDn *btained iram aImilar susident101
*ubd1ivisions within the surz,&unding area and information
obtained through trm U.S. CAP01091cal SurvOY B"katin CV-49 (ie•
Groundwater Studies in Saratoga nty, New Y6rk) idQntifl+ thus*
daposft; es rangivq in thick■ from 60 to 100 f&Ot.
Tout pit infontion caapiisd drei the alto cbrraborate th,i:
exi+t,ar ce of the ear facia 1 sond dapaa its - A carp+} Qf thO te0 t
pit rain Its h*va r, included as s n at,tachmcxnt to this l utt#r
rcq3ort ,
Aw l.erd thq■e� deposit* are typi4&& lY 1 aCtistrine si ltf"ar of LOW k■u 1 r' k�
p$rmsobility, The 1acustrina silt/1916Y dapesfts ire anticipat4d
t.9 range batUeen SO to 100 feet ilk total thiekrese. A* a result
of thA 1a,custrjrLe ■ 11tf c Lay deposits aerial axtuftt, and 1 uw
permeabiLity the wom/Clay .0hpaiite W411 act as a confining
layer betv"n the undarlying bedrock and surf tic is i sand
deposits.
A surficial u=onfined ageifar ■fit■ IN gxp&otad to exist
within the thi-uk glacial Lak* land deFcksit. static g=UndwaLQr
jgyVXa ar0 expected to range b$tV6*fh A t-9 $0 fast frova grg4* at
the site 4RP-Nndd`nt On
With the "g M"dox8rwk, whi-ch l ref preser tm. the regional
groun6water table f-pr the ptoxi"l study area-
gcgfon&l ytoandwat,er flow vjthir5 she y!noenfir`ed earfle"l
agulfer is antieipatad xa closely follCrw the Bogg maad v e�k
basin In an ea■t-vouthuait dirQCtiaa,. Ilipi-Cal Y
arntic ipot&d fro■ w1n j is C4Dmpl etad ilk the she l kcw aqul f or are
RO UY E 1 dB, OLIF70N P.&RIB, NEW YOM K 1 204S5 l5 y 03 37 1 -76:2 1
2B K4Ap19QN 157FhEE?. RU7LAND, VERMONT 0!57D'i 12027 775•31 OO
P.M" 2
Mr � GROJEf SCrra*M&rtin
Naralk 20, 1990
expected to range betw*-Orl 5 to 50 qpm, dependent on the rolative
permeability of the aquifer as each site sped f ic- drilling
locatLQn.
The site aAd p=xii l atedy area are 01*0 UnA&rl&in by badrOck
of the Canajoharie Shale Formation which fa (>p&awieian in age.
Th# CanakjQhazie shale is prf"pally a dark gray to black shale.
Porosity itt the Cara joharba SWO is poor. Most, wells in the
Cara joharie ShcLIn pro.da-ce groundwatsr from eecondarr poresity
features such as foviLa, fracture!Dr joints and beddinel planes.
Drilling reevlts QbtairhE!d from writla eompl$t4!pd within this
iorza,Irlon identify thu u�F,er surface k3% L he Ce rLe johari* Shale as
typically i ractured and vapthered wh i�-h oon L r ihute eiP f f scant
q"vandktat*r to wells installed in the unp4j a bed rock e-srf8C*
[,8ns3caYYy, praduc:tiv* partfone of th(i bedrock formatiora
typically range from p to 10 feet below the bedrock eurfaoe,
Thy bedrock f-ormotiori bade mere competent with th,
ree uiting in tgpi;.-o 1 residential v*11* completed with f it a h.&
upper 50 to 100 fcw5t surface of th* beArock formation. Typical
yields are 4spaored to range frpm 1 to 20 gpm.
PIJVAUb rtL Lo, the gsTwral bydrag&oloq is data aua i 1 ah Ls from the
Ourroonding. azva ft would appear vfabl* for the development of
31 residential to&llm within the prop"ad Louder, Road subdivision
site- B5th aquifers have a PdteAtia l to supply groundwater t*
arty individual building Jot• Test drilling would be n"woiazyy
to verify the wall yield for each lat.
should you have any qve*t i ¢rtr "Ja rd l M� rho f rtf ormat ior,
presented please contact our o f f tci!oe , am necessary.
Very truly} yQurt� o
enwiroFw*ntaj II}drogeology Corporation
Eric L. HaAaan
Prey id,ent
VAfaw
c.c. R. Eate
D. fpiteck
CP
0