June 17, 2026
Bacteria & Pathogens in New Hampshire Drinking Water 2026
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Bacteria & Pathogens in New Hampshire Drinking Water 2026
Bacteria & Pathogens contamination has been detected in drinking water systems across New Hampshire. Bacteria including E. coli and coliforms indicate sewage contamination and can cause gastrointestinal illness. Our analysis of New Hampshire water quality reports found Bacteria & Pathogens present in 70 cities and water systems statewide. If you live in one of these communities, a certified home filter can significantly reduce your exposure -- browse Bacteria & Pathogens filters at PureWaterGuys.
Cities in New Hampshire with Bacteria & Pathogens Detected
The following 70 water systems in New Hampshire reported Bacteria & Pathogens in their annual water quality reports. Click any city to read the full report.
| City / Water System | Water Quality Report |
|---|---|
| Alton Nh Water Quality Report 2026 | View Report |
| Amesbury Nh Water Quality Report 2026 | View Report |
| Antrim Nh Water Quality Report 2026 | View Report |
| Barrington Nh Water Quality Report 2026 | View Report |
| Berlin Nh Water Quality Report 2026 | View Report |
| Bethlehem Nh Water Quality Report 2026 | View Report |
| Boston Nh Water Quality Report 2026 | View Report |
| Bristol Nh Water Quality Report 2026 | View Report |
| Brunswick Nh Water Quality Report 2026 | View Report |
| Center Harbor Nh Water Quality Report 2026 | View Report |
| Center Tuftonboro Nh Water Quality Report 2026 | View Report |
| Chocorua Nh Water Quality Report 2026 | View Report |
| Claremont Nh Water Quality Report 2026 | View Report |
| Claymont Nh Water Quality Report 2026 | View Report |
| Colebrook Nh Water Quality Report 2026 | View Report |
| Columbia Nh Water Quality Report 2026 | View Report |
| Contoocook Nh Water Quality Report 2026 | View Report |
| Danville Nh Water Quality Report 2026 | View Report |
| Deering Nh Water Quality Report 2026 | View Report |
| E Kingston Nh Water Quality Report 2026 | View Report |
| East Hampstead Nh Water Quality Report 2026 | View Report |
| Enfield Nh Water Quality Report 2026 | View Report |
| Errol Nh Water Quality Report 2026 | View Report |
| Francestown Nh Water Quality Report 2026 | View Report |
| Fremont Nh Water Quality Report 2026 | View Report |
| Goffstown Nh Water Quality Report 2026 | View Report |
| Great Neck Nh Water Quality Report 2026 | View Report |
| Greenfield Nh Water Quality Report 2026 | View Report |
| Hales Location Nh Water Quality Report 2026 | View Report |
| Hanover Nh Water Quality Report 2026 | View Report |
| Haverhill Nh Water Quality Report 2026 | View Report |
| Henniker Nh Water Quality Report 2026 | View Report |
| Hillsboro Nh Water Quality Report 2026 | View Report |
| Hopkinton Nh Water Quality Report 2026 | View Report |
| Intervale Nh Water Quality Report 2026 | View Report |
| Kingston Nh Water Quality Report 2026 | View Report |
| Loudon Nh Water Quality Report 2026 | View Report |
| Lowell Nh Water Quality Report 2026 | View Report |
| Lynn Nh Water Quality Report 2026 | View Report |
| Madbury Nh Water Quality Report 2026 | View Report |
| Manchester Nh Water Quality Report 2026 | View Report |
| Marlborough Nh Water Quality Report 2026 | View Report |
| Milford Nh Water Quality Report 2026 | View Report |
| Monroe Nh Water Quality Report 2026 | View Report |
| Moultonborough Nh Water Quality Report 2026 | View Report |
| N Stratford Nh Water Quality Report 2026 | View Report |
| New London Nh Water Quality Report 2026 | View Report |
| North Conway Nh Water Quality Report 2026 | View Report |
| North Haverhill Nh Water Quality Report 2026 | View Report |
| North Woodstock Nh Water Quality Report 2026 | View Report |
| Northfield Nh Water Quality Report 2026 | View Report |
| Northwood Nh Water Quality Report 2026 | View Report |
| Orford Nh Water Quality Report 2026 | View Report |
| Pawtucket Nh Water Quality Report 2026 | View Report |
| Pembroke Nh Water Quality Report 2026 | View Report |
| Peterborough Nh Water Quality Report 2026 | View Report |
| Plainville Nh Water Quality Report 2026 | View Report |
| Plymouth Nh Water Quality Report 2026 | View Report |
| Quincy Nh Water Quality Report 2026 | View Report |
| Rochester Nh Water Quality Report 2026 | View Report |
| Rye Nh Water Quality Report 2026 | View Report |
| Seabrook Nh Water Quality Report 2026 | View Report |
| Surry Nh Water Quality Report 2026 | View Report |
| Tamworth Nh Water Quality Report 2026 | View Report |
| W Stewartstown Nh Water Quality Report 2026 | View Report |
| Waltham Nh Water Quality Report 2026 | View Report |
| Weare Nh Water Quality Report 2026 | View Report |
| Westborough Nh Water Quality Report 2026 | View Report |
| Whitefield Nh Water Quality Report 2026 | View Report |
| Windsor Nh Water Quality Report 2026 | View Report |
What Does This Mean For You?
Detecting Bacteria & Pathogens in your water supply does not necessarily mean immediate danger, but long-term exposure -- even at low levels -- carries measurable health risk. UV purification systems and sub-micron filters (0.2 micron) eliminate bacteria and pathogens.
Our recommendation: View Bacteria & Pathogens filters certified for New Hampshire water conditions or take our free Water Finder Quiz to get a personalized recommendation.
Filter Bacteria & Pathogens From Your New Hampshire Tap Water
PureWaterGuys carries NSF-certified filters proven to reduce Bacteria & Pathogens and other contaminants found in New Hampshire water.
Shop Bacteria & Pathogens Filters Take the Water QuizFrequently Asked Questions
What is Bacteria & Pathogens?
Bacteria including E. coli and coliforms indicate sewage contamination and can cause gastrointestinal illness.
Is New Hampshire tap water safe to drink?
Water quality varies by city. Of the New Hampshire systems we analyzed, 70 detected Bacteria & Pathogens. Most levels are below EPA action thresholds, but long-term low-level exposure carries health risk. Check your city's report above or use a certified home filter as a precaution.
What filter removes Bacteria & Pathogens from tap water?
UV purification systems and sub-micron filters (0.2 micron) eliminate bacteria and pathogens. See our Bacteria & Pathogens filter options.
Data sourced from EPA-mandated annual water quality reports (Consumer Confidence Reports). Last updated: 2026. Not all systems are required to test for every contaminant.