PWSID
090600147
State
California
City
Valley Center
Population served
7,003
Primary source
Groundwater
Score history
▼ 51 points — the score moved from 100 to 49 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 Feb 2024). Levels in parts per trillion (ppt).
PFOS
Perfluorooctanesulfonic acid
8.9 ppt
limit 4 ppt
PFOA
Perfluorooctanoic acid
5.6 ppt
limit 4 ppt
PFHxA
5.9 ppt
limit —
PFPeA
5 ppt
limit —
PFBS
3.4 ppt
limit —
Violations & enforcement
88
Violations on record
0
Unaddressed
4
Health-based
285
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Feb 2017. Official EPA record →
Recent enforcement actions
- EPA/federal action · EOX Feb 2017
- EPA/federal action · EOX Sep 2013
- EPA/federal action · EIC Dec 2011
- EPA/federal action · EIC Dec 2011
- EPA/federal action · EIC Dec 2011
- EPA/federal action · EIC Nov 2011
- EPA/federal action · EIC Nov 2011
- EPA/federal action · EIC Nov 2011
This profile is built from EPA public records for system 090600147 — 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.