D20/100
DOVER WATER DEPT — Water Quality Report 2026
Serving 29,000 people · New Hampshire
Water Source
Groundwater
County
—
System ID
NH0651010
Violations
34
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 380.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2021 – October 12, 2021Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About DOVER WATER DEPT
Is DOVER WATER DEPT water safe to drink?
DOVER WATER DEPT water receives a grade of D (20/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 34 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has DOVER WATER DEPT detected?
66 contaminants were tested in DOVER WATER DEPT's water. Notable contaminants include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 exceed EPA health goals (MCLGs).
Does DOVER WATER DEPT have any EPA violations?
Yes, DOVER WATER DEPT has 34 EPA violation(s) on record, with the most recent in 2021. Violation types include MR, Other, MCL. 10 are health-based violations.
How many people does DOVER WATER DEPT serve?
DOVER WATER DEPT serves approximately 29,000 people, New Hampshire. The system provides water to 1 community: Dover.
What type of water does DOVER WATER DEPT provide?
DOVER WATER DEPT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is NH0651010.
How does DOVER WATER DEPT compare to other utilities in New Hampshire?
DOVER WATER DEPT scores 20/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our New Hampshire state page for a full comparison of water systems.