Schenectady County, New York: drinking water report. Schenectady County in eastern New York has about 158,000 residents.
Schenectady County in eastern New York has about 158,000 residents. The City of Schenectady draws from the Mohawk River and the Watervliet Reservoir system. General Electric's turbine and electrical equipment manufacturing defined the city's economy for most of the 20th century, and the company's operations left a substantial environmental footprint.
GE's Schenectady campus and associated facilities discharged PCBs and industrial solvents into the Mohawk River and local groundwater for decades. According to NYSDEC's 2024 site database, the county has 28 active remediation sites, many related to GE operations. TCE plumes from manufacturing areas have migrated into residential neighborhoods.
The Schenectady County Airport has documented AFFF use. A 2024 NYSDEC PFAS investigation found combined PFAS at 14 ppt in monitoring wells near the airport. The EPA's UCMR5 data showed low-level PFAS in the Schenectady water system, consistent with multiple diffuse sources in the urban area.
Schenectady's Mohawk River supply is treated and meets all standards, but the industrial legacy in the county means localized groundwater contamination exists near former GE properties. If you are on a private well in the city or surrounding areas, testing for VOCs and PFAS gives you the clearest picture.
Start by checking your water for current results. For industrial solvents and PFAS, reverse osmosis handles both. Our water filter guide covers systems suited to urban well water. Pull your detailed report for historical data, and visit our New York page for statewide patterns.
Drinking water is one exposure route. These federal datasets also cover Schenectady County, NY.
The EPA places Schenectady County, NY in Zone 2 - a moderate-risk category, with a predicted average indoor radon level between 2 and 4 pCi/L. Zone maps predict an area's radon potential from geology and existing indoor readings; they say nothing about a specific house. Testing is the only way to know your own level.
77% of homes in Schenectady County, NY were built before 1980, and 42% before 1950. Residential lead paint was banned in 1978, so housing age is the strongest available proxy for lead-paint exposure. This describes the county's housing stock, not any one home.
Modelled annual fine-particle pollution (PM2.5) in Schenectady County, NY averages 6.6 µg/m³, within the EPA's annual standard of 9 µg/m³. These are CDC modelled county estimates rather than readings from a specific monitor.
How radon zones work · Air quality by county · Lead exposure guide
15 public water systems serving Schenectady County, NY have EPA lead testing on record. The reported lead sample skews toward systems that already flagged a problem, so its exceedance rate is not directly comparable with other areas. 4 water systems serving Schenectady County, NY carry a health-based EPA Safe Drinking Water Act violation.
| Most-cited violation type | Systems affected |
|---|---|
| Lead and Copper Rule | 2 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | 1 |
| Total Trihalomethanes (TTHM) | 1 |
| Haloacetic Acids (HAA5) | 1 |
| Copper | 1 |
Source: EPA Lead and Copper Rule 90th-percentile tap sampling and EPA SDWIS Safe Drinking Water Act enforcement records, aggregated from the public water systems serving this county. Figures are counts of water systems, not a test of any individual home or tap.