Genesee County, New York: drinking water report. Genesee County sits in western New York between Rochester and Buffalo, with Batavia as its county seat and…
Genesee County sits in western New York between Rochester and Buffalo, with Batavia as its county seat and smaller communities like Le Roy, Oakfield, and Alexander drawing water from a mix of municipal systems and private wells. The county's water supply comes primarily from Lake Ontario through the Monroe County Water Authority for some areas, while many rural residents rely on groundwater from shallow aquifer systems that underlie the region's agricultural landscape. This split between municipal and well water creates distinct exposure patterns across the county's 17 ZIP codes.
New York's aggressive PFAS testing under the 2020 Drinking Water Quality Council recommendations has revealed widespread contamination in communities across the state, and Genesee County fits the pattern seen in similar agricultural and light industrial regions. The state requires public water systems to test for PFOA and PFOS at detection levels far below the EPA's current standards, which means contamination shows up in testing here that might go undetected in other states. Areas served by municipal systems connected to Lake Ontario typically show lower PFAS levels than communities relying on local groundwater sources, where historical industrial activity and fire training sites have left their mark.
Lead remains a persistent concern in Genesee County's older housing stock, particularly in Batavia's pre-1950 neighborhoods where service lines and interior plumbing may still contain lead components. The state's Lead Service Line Replacement Program has identified potential lead infrastructure throughout western New York, though many properties have not yet been inventoried. Well water users face different challenges, with naturally occurring arsenic and manganese showing up in bedrock aquifers at levels that warrant attention, especially in the county's southern and eastern sections where geological formations differ from the Lake Ontario basin.
Agricultural activity shapes water quality across much of Genesee County, which ranks among New York's most productive farming regions. Nitrate contamination from fertilizer application appears in shallow wells with predictable seasonal variation, typically peaking after spring planting and heavy rainfall events that drive surface contamination into groundwater. Atrazine and other herbicides used in corn production show up in testing during growing months, though generally at levels below EPA maximum contaminant limits. Private well owners bear full responsibility for testing and treatment, unlike municipal customers who receive annual water quality reports documenting what the Batavia Water Department and other public systems find in their monitoring.
Municipal water customers should review their annual Consumer Confidence Reports for specific contaminant data, while private well owners need to arrange their own testing for PFAS, nitrates, and metals given the county's agricultural and geological context. Anyone concerned about their specific exposure should check your water for current data from their address, review the water filter guide for treatment options suited to different contaminant profiles, and access the detailed report for comprehensive testing information. Additional context on New York's water quality regulations and regional patterns appears on the state page.