Excellent Water Quality
Water Quality Summary
Tap water quality in Somersworth, New Hampshire (03878) receives an overall grade of A (Excellent) with a score of 90 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 13 points above the New Hampshire state average of 77. Compared to the national average (75), this area performs significantly better. The area is served by 3 water systems providing water to approximately 12,160 people, using surface water and groundwater sources. Over the past 5 years, water systems here have accumulated 3 violations, including 1 health-based violations.
A score of 90/100 means the water supply in Somersworth, NH meets or exceeds all EPA standards with minimal issues. Contaminant levels are well within safe limits, and the water system has maintained a strong compliance record. While no water supply is guaranteed perfect at the tap due to household plumbing, this is among the best-scoring areas in the country.
Common Questions
Based on EPA data, tap water in Somersworth, New Hampshire receives a grade of A (Excellent) with a score of 90/100. 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 03878 is served by 3 water systems using surface water, groundwater sources, providing water to approximately 12,160 people. Multiple source types mean your water may come from a blend of surface and underground sources.
No lead data is currently available for ZIP code 03878. 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 Somersworth, 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 Somersworth, New Hampshire have received 3 violations in the last 5 years, including 1 health-based violation. 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 Somersworth, 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.