PWSID
NH1951020
State
New Hampshire
City
PORTSMOUTH
Population served
9,900
Primary source
Groundwater
Score history
No change since tracking began Jun 18, 2026.
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 May 2025). Levels in parts per trillion (ppt).
PFBA
15 ppt
limit —
Violations & enforcement
1
Violations on record
0
Unaddressed
0
Health-based
7
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Apr 2011. Official EPA record →
Recent enforcement actions
- State action · SOX Apr 2011
- State action · SIA Apr 2011
- State action · SIF Jan 1995
- State action · SIA Dec 1994
- State action · SIE Dec 1994
- State action · SIE Sep 1988
- State action · SIA Sep 1988
This profile is built from EPA public records for system NH1951020 — 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.