Water Quality in Dayville, CT (06241)
EPA violation data for public water systems serving ZIP code 06241.
Active Health Violations
11 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 89% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
6,585
Population
33
Water Systems
42
Violations (5yr)
11
Health-Based
Location
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Water Systems Serving This Area (33)
Killingly High School & Agricultural Ctr
1 health-basedFrito-Lay
2 health-basedR & R Trailer Park
Chaplin Woods Condominiums
2 health-basedKnollbrook Village Elderly Housing
1 health-based474 Putnam Pike
2 health-basedRailside Tavern
430 Ledge Road
All resolvedPeter Green
Moosup Manor
2 health-basedJohn B Kettelle
Zips Diner Inc
Gorman Road Apartments
1 health-basedMcdonalds Of Dayville
Gloria’S Kitchen
Boundreaus Welding
Da-Zi Dairy
Trader J'S
Golden Greek Restaurant
Halls Hill Road Apts
St Joseph'S Church
Wildwood Park Restaurant
Travelers Shell Station
Anchor Glass
Four Gs Pizzeria
Holmslea Court Suppl
Black Pond Brews
Killingly Central School
The Lake Restraurant
Michael Brennan
Mr Bissonette
Westview Nursing Care & Rehab Ctr, Inc.
Killingly Daycare
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Used to disinfect water — generally safe at regulated levels.
Annual water quality report delivery requirement.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
Copper (Cu)
Exceeds limitSampled: Jan 2024
How Does This Compare?
Dayville (06241) has more violations than 89% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 42.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.