Home/ Directory/ CA/ DEL ORO RIVER ISLAND SERV TERR #2

Water system · PWSID CA5402048

DEL ORO RIVER ISLAND SERV TERR #2

CHICO, CA · ~89 people served

Check your exact address → CHICO overview
100
Excellent
PurityRadar safety score

PWSID

CA5402048

State

California

City

CHICO

Population served

89

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

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

38

Health-based

32

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2024. Official EPA record →

Monitoring · Lead & Copper Rule began Aug 2024 Resolved
Max contaminant level (MCL) · Combined radium-226/228 health-based began Oct 2020 Resolved
Max contaminant level (MCL) · Combined radium-226/228 health-based began Apr 2020 Resolved
Max contaminant level (MCL) · Combined radium-226/228 health-based began Jan 2020 Resolved
Max contaminant level (MCL) · Combined radium-226/228 health-based began Oct 2019 Resolved
Max contaminant level (MCL) · Nitrate health-based began Oct 2019 Resolved
Max contaminant level (MCL) · Combined radium-226/228 health-based began Jul 2019 Resolved
Max contaminant level (MCL) · Combined radium-226/228 health-based began Apr 2019 Resolved
Max contaminant level (MCL) · Combined radium-226/228 health-based began Jan 2019 Resolved
Max contaminant level (MCL) · Combined radium-226/228 health-based began Oct 2018 Resolved
Max contaminant level (MCL) · Combined radium-226/228 health-based began Jul 2018 Resolved
Max contaminant level (MCL) · Combined radium-226/228 health-based began Apr 2018 Resolved

Recent enforcement actions

  • State action · SOX Dec 2024
  • State action · SFL Dec 2024
  • State action · SOX Mar 2021
  • State action · SFL Sep 2019
  • State action · SOX Mar 2018
  • State action · SIA Aug 2016
  • State action · SIA May 2015
  • State action · SOX May 2013

This profile is built from EPA public records for system CA5402048 — 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.