Water Quality: Ossining, NY
2 water systems • 30,130 people served
Multiple Health ViolationsWater Quality Summary
Ossining is served by 2 public water systems with a combined service population of 30,130 people, and has 343 EPA Safe Drinking Water Act violations on record. Critically, 10 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Ossining's violation count is 191% above the national average for New York. Contaminants associated with violations include Bromate, Chlorine Dioxide, Contaminant 2806, E. coli, Total Organic Carbon.
Contaminants Found
Probable human carcinogen that increases the risk of kidney and thyroid cancers.
Common source: Ozonation of bromide-containing water; used as flour improver
EPA limit: 0.010 mg/L (10 ppb)
Can cause anemia in infants and young children; may cause nervous system effects at high levels.
Common source: Water treatment disinfectant used to control taste, odor, and microorganisms
EPA limit: 0.8 mg/L
Causes gastrointestinal illness; certain strains (e.g., O157:H7) can cause severe kidney failure and death.
Common source: Fecal contamination from humans or animals entering the water supply
EPA limit: Zero (no E. coli permitted in drinking water)
Not a direct health risk but reacts with disinfectants to form carcinogenic byproducts such as trihalomethanes.
Common source: Decaying plant material, algae, soil organic matter in source water
EPA limit: Treatment technique (must reduce TOC based on source water level)
Water Systems Serving Ossining
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| OSSINING WATER DEPARTMENT | NY5903451 | Surface Water | 30,000 | 105 |
| SUNSHINE CHILDRENS HOME & REHAB CENTER | NY5910495 | Surface Water | 130 | 238 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in New York
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.