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HomeMy WebLinkAbout20260627 Brook Rd Verizon Communications Facility Site Plan Generator Noise Letter Verizon Wireless 1275 John Street, Suite #100 West Henrietta, NY 14586 ATTN: Ms. Kathy Pomponio March 16, 2026 RE: GENERATOR NOISE LETTER VERIZON WIRELESS PROPOSED TELECOMMUNICATION FACILITY SITE NAME: SARATOGA QUARRY BROOK ROAD, CITY OF SARATOGA SPRINGS, SARATOGA COUNTY, NY 12866 TECTONIC W.O. 12396.068 Dear Ms. Pomponio: Tectonic Engineering was asked to provide a noise analysis/comparison letter for the proposed Verizon Wireless emergency backup power generator that is part of the above referenced project. We obtained noise specifications from the manufacturer Rehlko for their proposed standard 50kW outdoor diesel fueled AC generator including a level 2 sound-attenuating enclosure. The average sound pressure level for the generator is 67.4 dBA at a reference distance of 23.0 feet. We understand that consistent with normal Verizon Wireless procedure, absent exigent circumstances, the generator is expected to run once every two weeks during daytime hours for approximately 30 minutes for routine testing purposes. Sound attenuation for a point source (stationary source) equals a sound level reduction of 6 dBA per doubling of distance between a noise source and a receptor when there are no obstructions present between the two elements. Using this information, we can deduce the following noise levels that one would anticipate when the equipment is in use: • The distance between the generator and the nearest property line of an adjacent property which is not associated with the project is approximately 469-feet away, located to the east of the generator; the anticipated noise level at this point would be approximately 41.8 dBA. • The distance between the generator and the nearest residence is approximately 627-feet away, located to the southeast of the generator; the anticipated noise level at this point would be approximately 39.3 dBA. For comparison purposes, approximate decibel levels for normal conversation equal 60 dBA, for vehicular traffic equal 85 dBA, and for a running lawnmower equal 107 dBA. Based on the calculated values for the equipment, the anticipated noise levels will be lower than that experienced for normal conversation. page 2 of 2 Should you have any questions, please do not hesitate to contact the undersigned at (518) 783-1630. Sincerely, Tectonic Engineering Consultants, Geologists & Land Surveyors, D.P.C. Steven M. Matthews, PE Director of Engineering