D
48

Poor Water Quality

Manchester, NH 03103

Hillsborough County · Population served: 133,447 · Data updated March 2026

Water Systems Serving This Area

🏔
LITTLE POND ESTATES
Surface water · Pop. 3,000
PWSID: NH0192080
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VILLAGES AT CHESTER CONDOS
Groundwater · Pop. 245
PWSID: NH0432010
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SHERBURN WOODS
Groundwater · Pop. 25
PWSID: NH0594030
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SAMOSET AT WINNIPESAUKEE
Groundwater · Pop. 343
PWSID: NH0882160
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GREENFIELD COMMONS
Groundwater · Pop. 48
PWSID: NH0974010

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
16.0
15 ppb 1 ppb Exceeded

PFAS / Forever Chemicals

3 detected 3 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFOA6.4 ppt4 ppt4 pptExceeded
PFOA5.4 ppt4 ppt4 pptExceeded
PFOA5.0 ppt4 ppt4 pptExceeded

Violation History (Last 5 Years)

7Total (5yr)
3Health-Based
0Major

Water Quality Summary

Understanding Your Water in Manchester

Tap water quality in Manchester, New Hampshire (03103) receives an overall grade of D (Poor) with a score of 48 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 29 points below the New Hampshire state average of 77. Compared to the national average (75), this area scores significantly lower. The area is served by 9 water systems providing water to approximately 133,447 people, using surface water and groundwater sources. Testing has found elevated levels of Lead that warrant attention. Notably, 3 PFAS compounds exceed EPA limits — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 7 violations, including 3 health-based violations.

Your Score 48/100 D
vs State 29 pts below New Hampshire avg (77)
vs National 27 pts below national avg (75)

What a Grade D Means

A score of 48/100 signals poor water quality in Manchester, NH. Significant issues have been identified, which may include multiple violations, contaminant levels near or above regulatory limits, or PFAS contamination. We recommend reviewing the detailed contaminant data below, considering a certified water filter, and checking your utility's Consumer Confidence Report for the latest information.

Surface water: sourced from rivers, lakes, or reservoirs
Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

⚠️

Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Tap water in Manchester, New Hampshire receives a grade of D (Poor) with a score of 48/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 03103 is served by 9 water systems using surface water, groundwater sources, providing water to approximately 133,447 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Yes — lead levels in Manchester, New Hampshire are 16.0 ppb, which exceeds the EPA action level of 15 ppb. This is a serious concern. We strongly recommend using a certified lead-removal filter for all drinking and cooking water, and having your water independently tested.

Yes — 3 PFAS compounds were detected in water serving Manchester, New Hampshire, and 3 exceed EPA maximum contaminant levels. PFAS are persistent chemicals linked to cancer, immune system effects, and developmental issues. A reverse osmosis or activated carbon filter certified for PFAS removal is recommended.

Water systems serving Manchester, New Hampshire have received 7 violations in the last 5 years, including 3 health-based violations. 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.

Based on detected contaminants (lead, PFAS), residents in Manchester, New Hampshire should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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