PWSID
CA4410001
State
California
City
IRVINE
Population served
1,120
Primary source
Groundwater
Score history
No change since tracking began Jun 18, 2026.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.
Violations & enforcement
50
Violations on record
0
Unaddressed
26
Health-based
24
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Oct 2023. Official EPA record →
Recent enforcement actions
- State action · SOX Oct 2023
- State action · SOX Nov 2022
- State action · SOX Aug 2022
- State action · SFL Aug 2022
- State action · SFL Jun 2022
- State action · SOX Jan 2022
- State action · SFL Dec 2021
- State action · SOX Dec 2021
Area water-quality monitoring
Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.
Arsenic
1 station · latest Jun 2021
Fluoride
1 station · latest Jun 2021
Lead
1 station · latest Jun 2021
Manganese
1 station · latest Jun 2021
Uranium
1 station · latest Jun 2021
Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.
This profile is built from EPA public records for system CA4410001 — 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.