PWSID
CA1910004
State
California
City
ANAHEIM
Population served
50,375
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 Nov 2023). Levels in parts per trillion (ppt).
PFOS
Perfluorooctanesulfonic acid
11 ppt
limit 4 ppt
PFHxS
Perfluorohexanesulfonic acid
3.4 ppt
limit 10 ppt
Violations & enforcement
1
Violations on record
0
Unaddressed
1
Health-based
4
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Nov 2005. Official EPA record →
Recent enforcement actions
- State action · SIA Nov 2005
- State action · SOX Oct 2005
- EPA/federal action · EOX Mar 2000
- EPA/federal action · EOX Dec 1993
This profile is built from EPA public records for system CA1910004 — 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.