PWSID
CA3600152
State
California
City
LOMA LINDA
Population served
15,368
Primary source
Groundwater
Score history
▼ 9 points — the score moved from 100 to 91 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
4.2 ppt
limit 4 ppt
PFHxS
Perfluorohexanesulfonic acid
3.1 ppt
limit 10 ppt
Violations & enforcement
1
Violations on record
0
Unaddressed
0
Health-based
2
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Aug 2018. Official EPA record →
Recent enforcement actions
- State action · SOX Aug 2018
- State action · SFL Jul 2018
This profile is built from EPA public records for system CA3600152 — 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.