Dutchess County, New York: drinking water report. Dutchess County in New York's Hudson Valley has a population of about 300,000, with Poughkeepsie as its…
Dutchess County in New York's Hudson Valley has a population of about 300,000, with Poughkeepsie as its largest city. Water sources are split – the City of Poughkeepsie draws directly from the Hudson River, while surrounding communities rely on reservoirs, wells, and small surface water intakes. The Hudson at Poughkeepsie carries the accumulated discharges of everything upstream, including Albany, Troy, and dozens of industrial facilities along the river corridor.
The Hudson River is one of the most historically contaminated rivers in the eastern United States. General Electric's PCB discharges from the Hudson Falls and Fort Edward plants created a contamination legacy that extends the full length of the river. According to the New York State Department of Health, while PCB levels in the river have declined since the EPA-mandated dredging program, trace amounts persist in sediment and water. Poughkeepsie's treatment plant is designed to handle this, but the source water requires more intensive treatment than a pristine reservoir would.
The EPA's UCMR5 data shows PFAS detections across several water systems in Dutchess County. Stewart Air National Guard Base in adjacent Orange County is a confirmed PFAS source, and the former Beacon and Fishkill industrial areas add local contamination. A 2024 NYSDOH report noted two public water systems in the county with PFAS detections above New York's MCLs of 10 ppt.
Drinking treated Hudson River water is not inherently dangerous – Poughkeepsie has done it for over a century – but it does require confidence in the treatment system's performance. Smaller systems on wells face different risks depending on local land use.
Check your water for current monitoring data at your address. For PFAS, reverse osmosis provides the strongest household protection. Our water filter guide explains which systems are certified for the contaminants found in this area. Get your detailed report for historical trends, and visit our New York page for statewide context.
Drinking water is one exposure route. These federal datasets also cover Dutchess County, NY.
The EPA places Dutchess County, NY in Zone 1 - the EPA's highest-risk category, where the predicted average indoor radon level is above 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.
65% of homes in Dutchess County, NY were built before 1980, and 23% 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 Dutchess County, NY averages 6.7 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