F0/100
NEWMARKET WATER WORKS — Water Quality Report 2026
Serving 5,030 people · New Hampshire
Water Source
Groundwater
County
—
System ID
NH1731010
Violations
86
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2017.
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 NEWMARKET WATER WORKS
Is NEWMARKET WATER WORKS water safe to drink?
NEWMARKET WATER WORKS water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 86 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has NEWMARKET WATER WORKS detected?
31 contaminants were tested in NEWMARKET WATER WORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does NEWMARKET WATER WORKS have any EPA violations?
Yes, NEWMARKET WATER WORKS has 86 EPA violation(s) on record, with the most recent in 2017. Violation types include MR, TT, MCL. 6 are health-based violations.
How many people does NEWMARKET WATER WORKS serve?
NEWMARKET WATER WORKS serves approximately 5,030 people, New Hampshire. The system provides water to 1 community: Newmarket.
What type of water does NEWMARKET WATER WORKS provide?
NEWMARKET WATER WORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is NH1731010.
How does NEWMARKET WATER WORKS compare to other utilities in New Hampshire?
NEWMARKET WATER WORKS scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our New Hampshire state page for a full comparison of water systems.