WALNUT PARK MUTUAL WATER CO.

HUNTINGTON PARK, CA · ~16,180 people served

Check your exact address → HUNTINGTON PARK overview

100

Excellent

PurityRadar safety score

PWSID

CA1910169

State

California

City

HUNTINGTON PARK

Population served

16,180

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

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Other · EPA contaminant 2982 began Jun 2023 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2019 Resolved

Monitoring · Lead & Copper Rule began Oct 2016 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jan 1998 Resolved

Recent enforcement actions

State action · SOX Mar 2024
State action · SFL Jun 2023
State action · SOX Aug 2020
State action · SOX Aug 2020
State action · SFL Dec 2019
State action · SOX Dec 2016
State action · SFJ Dec 2016
EPA/federal action · EOX Mar 2000

This profile is built from EPA public records for system CA1910169 — 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.