Is Winchester, NH tap water safe?
The short answer
1 of the 3 utilities serving Winchester has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Green Valley Mobile Home Park.
Winchester Water Dept, which serves the most people here, has nothing above a health goal in EPA’s and CDC’s records. That data covers what its report lists, not everything.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Winchester’s ZIP codes, from EPA’s estimates.
- Open report
Winchester Water Dept
New Hampshire · serves 2,800 people · under 100 in Winchester
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
South Parrish
New Hampshire · serves 140 people · under 100 in Winchester
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
Green Valley Mobile Home Park
New Hampshire · serves 127 people · under 100 in Winchester
Nothing in its records is above a health goal.
1 health-based violation since 2016
Water testing near Winchester
The 3 labs New Hampshire certifies closest to Winchester, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Keene City Laboratory
Swanzey, NH · about 7 miles
Certified for bacteria
Nelson Analytical Lab - Keene Division
Swanzey, NH · about 14 miles
Certified for bacteria
Pace Analytical Services, LLC - East Longmeadow, MA
East Longmeadow, MA · about 50 miles
Certified for nitrate, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
ZIP codes in Winchester
Which ZIP codes are in Winchester: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: New Hampshire ELAP, drinking water labs, as listed in TNI LAMS; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Winchester
Other towns in Cheshire County with a page of their own.
What to do next
- Read Winchester Water Dept’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Decide if you want a filter at allA filter for taste or chlorine is a preference, not a need. The standards say what each kind can do.NSF/ANSI standards, decoded
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water