MAYWOOD MUTUAL WATER CO. #1

HUNTINGTON PARK, CA · ~5,500 people served

Check your exact address → HUNTINGTON PARK overview

Fair

PurityRadar safety score

PWSID

CA1910084

State

California

City

HUNTINGTON PARK

Population served

5,500

Primary source

SWP

Score history

▼ 33 points — the score moved from 100 to 67 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 67

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 Aug 2024). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

11 ppt

limit 4 ppt

Above EPA limit · 2.6×

Lithium

11,200 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2017. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2017 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2017 Resolved

Max contaminant level (MCL) · Total coliform health-based began Feb 1994 Resolved

Max contaminant level (MCL) · Total coliform health-based began Mar 1993 Resolved

Recent enforcement actions

State action · SOX Aug 2017
State action · SFJ Aug 2017
State action · SFJ Mar 1994
State action · SOX Mar 1994
State action · SFJ May 1993
State action · SOX May 1993

This profile is built from EPA public records for system CA1910084 — 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.