B
81

Good Water Quality

Warner, NH 03278

Merrimack County · Population served: 878 · Data updated March 2026

Water Systems Serving This Area

🌊
WARNER VILLAGE WATER DIST
Groundwater · Pop. 660
PWSID: NH2411010
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PLEASANT LAKE MHP
Groundwater · Pop. 218
PWSID: NH2413010

Violation History (Last 5 Years)

8Total (5yr)
0Health-Based
3Major

Water Quality Summary

Understanding Your Water in Warner

Tap water quality in Warner, New Hampshire (03278) receives an overall grade of B (Good) with a score of 81 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is roughly in line with the New Hampshire state average of 77. The area is served by 2 water systems providing water to approximately 878 people, using groundwater sources.

Your Score 81/100 B
vs State 4 pts above New Hampshire avg (77)
vs National 6 pts above national avg (75)

What a Grade B Means

A score of 81/100 means the water in Warner, NH is generally good and meets EPA standards, with only minor areas of concern. There may be low levels of detectable contaminants or a small number of non-critical violations. Most residents can feel comfortable with their tap water quality, though basic filtration can provide an extra layer of protection.

Groundwater: drawn from underground aquifers via wells

Common Questions

Frequently Asked Questions

Based on EPA data, tap water in Warner, New Hampshire receives a grade of B (Good) with a score of 81/100. This indicates the water meets federal standards and has relatively few concerns. However, individual homes may still have localized issues such as lead from old plumbing.

ZIP code 03278 is served by 2 water systems using groundwater sources, providing water to approximately 878 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.

No lead data is currently available for ZIP code 03278. This may mean lead testing results haven't been reported recently, or the serving water system uses monitoring waivers. You can request a free lead test kit from most water utilities or purchase a certified home testing kit.

No PFAS ("forever chemicals") were detected in water systems serving Warner, New Hampshire during the most recent EPA monitoring period (UCMR5). However, not all water systems have been tested for all PFAS compounds, and new contamination can occur over time.

Water systems serving Warner, New Hampshire have received 8 violations in the last 5 years. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Water in Warner, New Hampshire shows no major contaminant concerns based on available data. A basic carbon filter can improve taste and reduce chlorine. For extra peace of mind, an NSF-certified pitcher filter or faucet-mount filter provides an affordable layer of protection.

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