Water system · PWSID CA1910160
TRACT 349 MUTUAL WATER CO.
PWSID
CA1910160
State
California
City
CUDAHY
Population served
8,700
Primary source
Groundwater
Score history
▼ 69 points — the score moved from 100 to 31 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 Sep 2023). Levels in parts per trillion (ppt).
PFOS
Perfluorooctanesulfonic acid
37 ppt
limit 4 ppt
PFOA
Perfluorooctanoic acid
8.2 ppt
limit 4 ppt
PFHxS
Perfluorohexanesulfonic acid
6.6 ppt
limit 10 ppt
PFBA
5.3 ppt
limit —
Violations & enforcement
3
Violations on record
0
Unaddressed
1
Health-based
10
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement May 2023. Official EPA record →
Recent enforcement actions
- State action · SFL May 2023
- State action · SOX Jul 2019
- State action · SFL Jul 2019
- State action · SFL Jul 2019
- State action · SFL Jul 2019
- EPA/federal action · EOX Mar 2000
- State action · SOX Apr 1996
- State action · SIC Apr 1996
This profile is built from EPA public records for system CA1910160 — 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.