Steuben County, New York: drinking water report. Steuben County spans New York's Southern Tier, encompassing communities like Corning, Hornell, Bath, and…
Steuben County spans New York's Southern Tier, encompassing communities like Corning, Hornell, Bath, and Canisteo. The county draws water from the Canisteo River, Cohocton River, Chemung River watershed, and numerous small municipal wells serving rural populations. Many residents outside incorporated villages rely on private wells drilled into fractured bedrock aquifers, which present distinct monitoring challenges compared to regulated public systems.
New York's 2023 water quality reporting reveals that smaller municipal systems and private wells in the Southern Tier region face elevated risks for several contaminants. PFAS compounds, particularly PFOA and PFOS, have been detected across the Finger Lakes region and Southern Tier at levels that warrant attention under EPA's updated health advisories. The state's drinking water program has prioritized testing in areas with historical manufacturing, airports, and military installations, all of which exist within or near Steuben County's borders. Corning's legacy glassmaking industry and the presence of small airports increase the likelihood of per- and polyfluoroalkyl substances in groundwater.
Lead service lines remain a concern in older municipalities like Hornell and Bath, where infrastructure dates to the early 20th century. The state Lead Service Line Replacement Program has identified priority areas, but thousands of homes across the county still receive water through pipes that can leach lead, especially in homes built before 1986. Corrosion control isn't always optimized in smaller systems, and private well owners have no regulatory requirement to test for lead even though household plumbing can be a source.
Nitrate contamination affects rural wells throughout agricultural portions of the county. The Canisteo River valley supports dairy and crop farming, activities that contribute nitrogen runoff into shallow aquifers. Private wells in these areas have shown nitrate levels above 5 mg/L in regional surveys, though comprehensive county-wide data remains sparse because testing is voluntary. Microbial contamination after heavy rainfall poses additional risks for shallow wells and aging septic systems common in unincorporated areas.
If you're on a private well, annual testing for nitrate, bacteria, and lead is your responsibility since no agency monitors your water. Municipal customers should request their utility's latest Consumer Confidence Report and ask specifically about PFAS testing results, lead service line inventories, and corrosion control methods. Check your water to see current testing data for your area, review the water filter guide for treatment options that address specific contaminants, and access your detailed report for comprehensive data. Visit the New York state page for context on statewide water quality trends and regulatory updates.
Drinking water is one exposure route. These federal datasets also cover Steuben County, NY.
The EPA places Steuben 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.
68% of homes in Steuben County, NY were built before 1980, and 38% 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 Steuben County, NY averages 5.9 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