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Water system · PWSID CA4800561

SNUG HARBOR RV LP

WALNUT GROVE, CA · ~125 people served

Check your exact address → WALNUT GROVE overview
100
Excellent
PurityRadar safety score

PWSID

CA4800561

State

California

City

WALNUT GROVE

Population served

125

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

47

Violations on record

0

Unaddressed

44

Health-based

13

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2023. Official EPA record →

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2023 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2022 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2022 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2021 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2017 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2017 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2016 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2016 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2016 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2016 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2016 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2016 Resolved

Recent enforcement actions

  • State action · SOX Jun 2023
  • State action · SFL Sep 2022
  • State action · SOX Aug 2021
  • State action · SFL Jun 2021
  • State action · SOX Jul 2018
  • State action · SOX Jan 2018
  • State action · SFL Mar 2015
  • State action · SOX Sep 2001

This profile is built from EPA public records for system CA4800561 — 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.