PWSID
CA3710021
State
California
City
ENCINITAS
Population served
40,405
Primary source
SWP
Score history
▼ 10 points — the score moved from 100 to 90 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 2024). Levels in parts per trillion (ppt).
PFOA
Perfluorooctanoic acid
4.3 ppt
limit 4 ppt
Lithium
40,000 ppt
limit —
PFHxA
4.3 ppt
limit —
PFPeA
4.1 ppt
limit —
PFBS
3.4 ppt
limit —
Violations & enforcement
1
Violations on record
0
Unaddressed
0
Health-based
3
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Jul 2023. Official EPA record →
Recent enforcement actions
- State action · SOX Jul 2023
- State action · SFL Oct 2022
- State action · SIA Dec 2003
This profile is built from EPA public records for system CA3710021 — 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.