Water Quality: Henniker, NH
3 water systems • 3,149 people served
Multiple Health ViolationsWater Quality Summary
Henniker is served by 3 public water systems with a combined service population of 3,149 people, and has 16 EPA Safe Drinking Water Act violations on record. Critically, 4 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Henniker's violation count is 61% below the national average for New Hampshire. Contaminants associated with violations include Disinfection Byproducts, Lead.
Contaminants Found
Broad category of chemicals formed during disinfection, associated with increased cancer risk and adverse reproductive effects.
Common source: Reaction of disinfectants (chlorine, ozone, chloramines) with organic matter
Causes neurological damage, developmental delays in children, and kidney damage in adults even at low exposure levels.
Common source: Old plumbing pipes, lead solder, brass fixtures
EPA limit: Action Level: 0.015 mg/L (15 ppb)
Water Systems Serving Henniker
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| COGSWELL SPRINGS WATER WORKS | NH1121010 | Groundwater | 3,000 | 6 |
| WOOD HILL VILLAGE | NH1123020 | Groundwater | 91 | 8 |
| WILSONS MHP | NH0753010 | Groundwater | 58 | 2 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in New Hampshire
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.