State
New Hampshire: drinking water records
EPA lists 681 community water systems serving homes in New Hampshire. 48 took part in EPA's national PFAS survey (UCMR 5), and 17 found at least one PFAS above the level laboratories can measure.
In focus681community water systems
Public records. Clearer context.
0
ZIP reports published
681
community water systems
200
systems with a health-based violation since 2016
64
systems that reached the lead action level since 2016
Counties
- Belknap County 65 systems
- Carroll County 104 systems
- Cheshire County 31 systems
- Coos County 18 systems
- Grafton County 70 systems
- Hillsborough County 69 systems
- Merrimack County 61 systems
- Rockingham County 187 systems
- Strafford County 48 systems
- Sullivan County 16 systems
ZIP reports
Sources
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.