CITY REPORT NH

Dover, NH: 1 Violation - Home Safety Score unavailable

3 ZIP codes · 2 water systems · Updated

Data: EPA SDWIS

3
ZIP Codes
2
Water Systems
1
ZIPs Linked to Systems with Violations
Zone 2
County Radon Potential (Moderate)
$398K
Median Home Value

Key Facts for Dover Residents

  • Water systems mapped to your city have 1 violation on record since 2021.
  • Average of reported 90th-percentile lead results: 0.001 mg/L.
  • Health risk index (ZipCheckup composite of CDC data): 11.41.

Dover's Water Providers

Multiple utilities show up for Dover, NH: 2 are listed here out of 2 tracked federally.

Overview

We track home safety data for 3 ZIP codes in Dover, New Hampshire (population ~33,150), covering 2 community water systems serving approximately 62,000 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 3 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Water Sources

Dover water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0010 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

3 of 3 ZIP records with known zones are in EPA Radon Zone 2.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Lead and Copper Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
03820 — 1 0 Dover Water Department

All ZIP Codes in Dover

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Dover Community Health Snapshot

10.7%
Asthma (US: 9.8%)
8.6%
Diabetes (US: 10.4%)
17.5%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 10.7% ↑
Diabetes 8.6% ↓
Mental Health 17.5% ↑

Vertical line = national average. ■ Above national · ■ Below national

What's in Dover's Water?

Lead and Copper Rule 2 violations
Treatment Technique
Developmental delays in children, kidney damage

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Dover: Lead Risk & Vulnerable Populations

0.001
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Available area-level lead records for Dover do not determine the lead level at an individual tap. Testing is the only way to confirm your water's lead content.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Dover: NFIP Claim Records and Water-Quality Context

45
Total FEMA Flood Claims
$28,016
Avg Reported Sum With Payment Data
50%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Dover contains 45 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $28,016. Among ZIP codes with claim records, 50% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

How many violations are on record for water systems serving Dover?
EPA records list 1 EPA violation for Dover water systems. These water-system violations are shown for 3 mapped ZIP codes.
Does Dover water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Dover is 0.001 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Dover?
Our records map 2 water systems to 3 ZIP codes in Dover. The related population figure in our data is approximately 33,150 people; it is not a count of people served citywide.
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How to cite this page

APA ZipCheckup. (2026). Dover, NH: 1 Violation - Home Safety Score unavailable. https://zipcheckup.com/cities/nh/dover/
BibTeX
@misc{zipcheckup-cities-nh-dover,
  author = {{ZipCheckup}},
  title  = {{Dover, NH: 1 Violation - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/nh/dover/}
}

Page version: October 2026.

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