Is Derry, NH tap water safe?
The short answer
3 of the 14 utilities serving Derry have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Centennial Estates, Old Coach Village and Running Brook.
Derry Water Dept, which serves the most people here, has 1 result above EPA’s new limit, which takes effect in 2029. The worst: PFOA at 4.6 ppt, above EPA’s new limit, which takes effect in 2029.
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 Derry’s ZIP codes, from EPA’s estimates.
- Open report
Derry Water Dept
New Hampshire · serves 17,528 people · about 9,300 in Derry
1 result above EPA’s new limit, which takes effect in 2029. The worst: PFOA at 4.6 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
- Open report
Drew Woods
New Hampshire · serves 1,413 people · nearly all in Derry
1 result above the health goal. The worst: Arsenic at 1.6 ppb, above the health goal.
No health-based violations since 2016
- Open report
Maple Hill Acres
New Hampshire · serves 500 people · about 340 in Derry
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
Hi and Lo Estates
New Hampshire · serves 150 people · nearly all in Derry
2 results above the health goal. The worst: Arsenic at 1.1 ppb, above the health goal.
No health-based violations since 2016
- Open report
Maple Haven
New Hampshire · serves 258 people · nearly all in Derry
2 results above the health goal. The worst: Arsenic at 2.6 ppb, above the health goal.
No health-based violations since 2016
- Open report
Centennial Estates
New Hampshire · serves 140 people · nearly all in Derry
1 result above the legal limit and 1 result above the health goal. The worst: Nitrate at 6.3 ppm, above the legal limit.
1 health-based violation since 2016
- Open report
Glen Ridge Dev
New Hampshire · serves 263 people · about 200 in Derry
1 result above the health goal. The worst: Uranium at 13.6 ppb, above the health goal.
No health-based violations since 2016
- Open report
Willow Bend
New Hampshire · serves 55 people · nearly all in Derry
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
Annie Oakley MHP
New Hampshire · serves 127 people · under 100 in Derry
2 results above the health goal. The worst: Arsenic at 4.9 ppb, above the health goal.
No health-based violations since 2016
- Open report
Old Coach Village
New Hampshire · serves 50 people · nearly all in Derry
1 result above the health goal. The worst: Arsenic at 1.4 ppb, above the health goal.
4 health-based violations since 2016
4 more utilities in Derry
By EPA’s estimate, each serves fewer people in Derry than those above.
- Running Brookserves 47 people · under 100 in Derry · no health-based violations since 2016
- Farmstead Acresserves 93 people · under 100 in Derry · no health-based violations since 2016
- Autumn Woodsserves 73 people · under 100 in Derry · no health-based violations since 2016
- Oakwood Terraceserves 310 people · lists Derry among the places it serves · no health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Derry Water Dept’s water, which serves the most people here. Another utility’s report names what handles its own results.
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ZeroWater 10 Cup Pitcher (ZP-010)
Pitcher
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53checked Oct. 4, 2026
Certified for: PFOA
Aquasana Claryum Direct Connect (AQ-MF-1)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOA
Express Water StreamLine Direct Connect System (USC001)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOA
Water testing near Derry
The 3 labs New Hampshire certifies closest to Derry, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Eurofins Derry
Derry, NH · under a mile
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
Nelson Analytical LLC
Manchester, NH · about 8 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Seacoast Analytical Services LLC
Lee, NH · about 24 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
ZIP codes in Derry
Which ZIP codes are in Derry: 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 Derry
Other towns in Rockingham County with a page of their own.
What to do next
- Read Derry Water Dept’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for PFOARanked by certification and what they cost over five years.The best water filters for PFAS, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water