Water Quality: Monsey, CT

2 water systems • 381 people served

Multiple Health Violations
296
Total Violations
15
Health-Based Violations
2
Water Systems
381
Population Served

Water Quality Summary

Monsey is served by 2 public water systems with a combined service population of 381 people, and has 296 EPA Safe Drinking Water Act violations on record. Critically, 15 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Monsey's violation count is 17% above the national average for Connecticut. Contaminants associated with violations include Chlorine Dioxide, Disinfection Byproducts, E. coli, Stage 2 DBP.

Contaminants Found

Chlorine Dioxide

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

Disinfection Byproducts

Broad category of chemicals formed during disinfection, associated with increased cancer risk and adverse reproductive effects.

Common source: Reaction of disinfectants (chlorine, ozone, chloramines) with organic matter

E. coli

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)

Stage 2 DBP

Trihalomethanes and haloacetic acids that increase cancer risk and may cause adverse reproductive outcomes.

Common source: Chlorine disinfection reacting with natural organic matter in source water

EPA limit: TTHM: 0.080 mg/L; HAA5: 0.060 mg/L

Water Systems Serving Monsey

System Name PWSID Source Population Violations
COLCHESTER ESTATES CT0280041 Groundwater 276 235
MOUNTVIEW APARTMENTS CT0861051 Groundwater 105 61

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 Connecticut

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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.

Verify at epa.govSearch ECHO for CT