PWSID
NH1201010
State
New Hampshire
City
HUDSON
Population served
16,700
Primary source
Groundwater
Score history
▼ 33 points — the score moved from 100 to 67 on Jun 18, 2026, as newly published EPA data was incorporated.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
Latest detections from EPA’s UCMR5 monitoring (through Jan 2025). Levels in parts per trillion (ppt).
PFOA
Perfluorooctanoic acid
9 ppt
limit 4 ppt
PFPeA
5 ppt
limit —
PFHxA
4 ppt
limit —
Violations & enforcement
3
Violations on record
0
Unaddressed
0
Health-based
10
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Aug 2021. Official EPA record →
Recent enforcement actions
- State action · SIF Aug 2021
- State action · SIF Aug 2021
- State action · SOX Aug 2021
- State action · SOX Aug 2021
- State action · SIE Jul 2021
- State action · SIE Jul 2021
- State action · SIA Jul 2021
- State action · SIA Jul 2021
Area water-quality monitoring
Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.
Arsenic
1 station · latest Feb 2022
Copper
1 station · latest Feb 2022
Lead
1 station · latest Feb 2022
Uranium
1 station · latest Feb 2022
Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.
This profile is built from EPA public records for system NH1201010 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.