Tap Water Quality Report
Tap water quality in MANCHESTER, New Hampshire
Tap water in MANCHESTER, New Hampshire receives a grade of B (87/100) from TapWaterSafety.org. It's served by MANCHESTER WATER WORKS. The most significant water quality concerns are: PFAS contamination; Haloacetic acids (HAA9) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in MANCHESTER's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving MANCHESTER.
PFAS contamination
Severe concernPerfluorooctanoic acid (PFOA) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 5.03 ppb, 84x above the EWG health guideline of 0.06 ppb.
EPA compliance record
Official U.S. EPA records for MANCHESTER WATER WORKS (system ID NH1471010) for the last 3 years. Checked 2026-10-07.
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Recommended filters for MANCHESTER
Filters matched to the specific contaminants in MANCHESTER's water supply.
Filter certified for PFOA/PFOS (NSF/ANSI 53 or 58)
$180-$750Reverse osmosis and some carbon block filters reduce PFAS. Look for certification to NSF/ANSI 53 or 58 for PFOA/PFOS.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
All contaminants detected in MANCHESTER's tap water
Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Perfluorooctanoic acid (PFOA) PFAS |
4.32 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | EPA violation |
| Haloacetic acids (HAA9) Disinfection byproduct |
5.03 ppb | 0.06 | — | — | — | — | — | 84× over |
| Chromium (hexavalent) Heavy metal |
0.0598 ppb | 0.02 | — | — | — | — | — | 3.0× over |
| Chlorate Disinfection byproduct |
180.9 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
13.0 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Vanadium Other |
0.36 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.661 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
0.291 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0476 ppb | 1500.0 | — | — | — | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from MANCHESTER WATER WORKS.