Water Quality: Plymouth, NH
5 water systems • 7,439 people served
Some ConcernsWater Quality Summary
Plymouth is served by 5 public water systems with a combined service population of 7,439 people, and has 25 EPA Safe Drinking Water Act violations on record. Critically, 3 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Plymouth's violation count is 40% below the national average for New Hampshire. Contaminants associated with violations include Chlorine Dioxide, Disinfection Byproducts, E. coli.
Contaminants Found
Can cause anemia in infants and young children; may cause nervous system effects at high levels.
Common source: Water treatment disinfectant used to control taste, odor, and microorganisms
EPA limit: 0.8 mg/L
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 gastrointestinal illness; certain strains (e.g., O157:H7) can cause severe kidney failure and death.
Common source: Fecal contamination from humans or animals entering the water supply
EPA limit: Zero (no E. coli permitted in drinking water)
Water Systems Serving Plymouth
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| PLYMOUTH VLG WATER AND SEWER | NH1941010 | Groundwater | 6,700 | 3 |
| VILLAGE AT RIVERBEND | NH0102020 | Groundwater | 258 | 1 |
| TENNEY BROOK II | NH1942010 | Groundwater | 228 | 8 |
| WHIP O WILL | NH1943010 | Groundwater | 165 | 7 |
| HIGHLAND COLONY | NH1162010 | Groundwater | 88 | 6 |
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.