Water Quality in Westerly, RI (02804)
EPA violation data for public water systems serving ZIP code 02804.
Active Health Violations
5 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 97% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
2,609
Population
17
Water Systems
128
Violations (5yr)
5
Health-Based
Location
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Water Systems Serving This Area (17)
Westerly Water Department
All resolvedNorth Kingstown Town Of
Veolia Water Wakefield Rhode Island Inc
2 health-basedFrontier Camper Park Inc
1 health-basedHolly Tree Camper Park, Inc.
Bethel Village Water Assn
Pilgrims Baptist Church, The
Hopkinton Industrial Park, Llc
All resolvedHopkinton, Town Of
1 health-basedLucky House Llc
Ashaway Line & Twine Mfg. Co.-Lower Mill
All resolvedTrinity Lutheran Pre-School
All resolvedCrandall House-Sr. Citizens
1 health-basedForestdale Water Assn
Ashaway Line & Twine Mfg. Co.-Upper Mill
Hopkinton Town Hall
Thames River Tube Company
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
At high levels, nitrate can cause blue baby syndrome in infants.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Annual water quality report delivery requirement.
A naturally occurring element that can cause cancer and other health effects at high levels.
Similar to nitrate — harmful to infants at high levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Westerly (02804) has more violations than 97% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 128.
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
One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.
Targets:Nitrate, Nitrite, Dissolved Solids
Look for:NSF/ANSI 58 certified
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 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.