Water system · PWSID CT1480011
WALLINGFORD WATER DEPARTMENT
PWSID
CT1480011
State
Connecticut
City
WALLINGFORD
Population served
37,267
Primary source
Surface water
Score history
▼ 43 points — the score moved from 100 to 57 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 Jul 2025). Levels in parts per trillion (ppt).
PFOS
Perfluorooctanesulfonic acid
14 ppt
limit 4 ppt
PFHxS
Perfluorohexanesulfonic acid
11 ppt
limit 10 ppt
PFBS
4 ppt
limit —
Violations & enforcement
63
Violations on record
0
Unaddressed
0
Health-based
24
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Jul 2025. Official EPA record →
Recent enforcement actions
- State action · SIF Jul 2025
- State action · SOX Sep 2024
- State action · SIA Aug 2024
- State action · SIE Aug 2024
- State action · SIA Aug 2024
- State action · SOX Jul 2024
- State action · SOX Jul 2023
- State action · SIA Sep 2010
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.
Nitrate
3 stations · latest Aug 2023
Copper
1 station · latest Sep 2023
Fluoride
1 station · latest Sep 2023
Lead
1 station · latest Sep 2023
Manganese
1 station · latest Sep 2023
Uranium
1 station · latest Sep 2023
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 CT1480011 — 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.