A
89

US Water Score: A

Manchester, NH 03109

Hillsborough County · Population served: 123,500 · Data updated July 2026

Service-area evidence: EPA service-area records associate the listed system with this ZIP. Boundaries may still overlap or change.

Water Systems Serving This Area

🏔
MANCHESTER WATER WORKS
Surface water · Pop. 123,500
PWSID: NH1471010
🌊
THE MEADOWS
Groundwater · Pop. 200
PWSID: NH1193010
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DEER MEADOWS
Groundwater · Pop. 150
PWSID: NH1193030
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BROOKSIDE CROSSING
Groundwater · Pop. 138
PWSID: NH0882180
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OLDE COUNTRY VILLAGE
Groundwater · Pop. 130
PWSID: NH1392030

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
36.0
15 ppb 1 ppb

PFAS / Forever Chemicals

1 detected 1 above comparison value

UCMR5 occurrence results are screening information, not a finding of regulatory compliance or noncompliance. PFAS rules and compliance dates are evolving.

CompoundLevelEPA MCLHealth GuidelineStatus
PFOA5.0 ppt4 ppt4 pptAbove comparison value

Violation History (Last 5 Years)

8Total (5yr)
1Health-Based
3Major

Water Quality Summary

Understanding Your Water in Manchester

Tap water quality in Manchester, New Hampshire (03109) receives an overall grade of A (Lower record-based concern) with a score of 89 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 89. Compared to the national average (75), this area performs significantly better. The area is served by 10 water systems providing water to approximately 123,500 people, using surface water and groundwater sources. Notably, 1 PFAS compound exceeds the EPA final MCL value used for comparison — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 8 violations, including 1 health-based violations.

Your Score 89/100 A
vs State 0 pts above New Hampshire avg (89)
vs National 14 pts above national avg (75)

What a Grade A Means

A score of 89/100 means public water-system records for Manchester, NH show relatively few concerns in the US Water Score model. This is an internal score, not an EPA safety rating, and it does not guarantee conditions at any specific tap.

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

Based on public water-system records, Manchester, New Hampshire receives an internal US Water Score grade of A (Lower record-based concern) with a score of 89/100. This indicates relatively few system-level concerns in our model, but it is not an EPA safety rating and does not guarantee tap conditions inside individual homes.

ZIP code 03109 is served by 10 water systems using surface water, groundwater sources, providing water to approximately 123,500 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead levels in the public-system record for Manchester, New Hampshire are 36.0 ppb, above the currently applicable EPA action level of 15 ppb. EPA's Lead and Copper Rule Improvements lower that action level to 10 ppb when the new requirements take effect. This system-level result does not measure an individual tap; consider a certified lead-removal filter and independent tap testing.

Yes — 1 PFAS compounds were detected in records associated with water serving Manchester, New Hampshire, and 1 result exceeded the numerical EPA MCL value used for comparison. UCMR5 occurrence results alone are not a regulatory compliance determination. PFAS rules and compliance timelines are evolving; verify current information with the utility and EPA.

Water systems serving Manchester, New Hampshire have received 8 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.

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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