Water Quality in Dover, NH (03820)
EPA violation data for public water systems serving ZIP code 03820.
Active Health Violations
2 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 75% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
33,440
Population
22
Water Systems
16
Violations (5yr)
2
Health-Based
Location
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Water Systems Serving This Area (22)
Dover Water Dept
All resolvedRochester Water Dept
1 health-basedPortsmouth Christian Academy
Wentworth Douglass Med Off
Toy'S Manufactured Housing
Barrington Mobile Home Estates
Cottage By The Bay
New England Sports Academy
Amazon Park
Drew Pond
Jolly Rogers Ps Inf Care Ctr
Brookfield Plaza
Concord Estates Mhp, Llc.
Ralph Jannuzzi
Ellison Farm Apts
All resolvedApi Franklin, Llc
1 health-basedMiss Pattys Childcare
All resolvedHeritage Hill Apartments
Jeremiah Smith Grange
Johnson Creek Village
Elliott Rose Company/ Madbury
Demerritt Apartments
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Dover (03820) has more violations than 75% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 16.
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
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
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.