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Water system · PWSID CA0510001

UNION PUBLIC UTILITY DISTRICT

MURPHYS, CA · ~4,774 people served

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

PWSID

CA0510001

State

California

City

MURPHYS

Population served

4,774

Primary source

Surface water

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

Latest detections from EPA’s UCMR5 monitoring (through Nov 2024). Levels in parts per trillion (ppt).

Lithium

50,000 ppt

limit —

No federal limit

Violations & enforcement

12

Violations on record

0

Unaddressed

11

Health-based

19

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2022. Official EPA record →

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2021 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2021 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2020 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2006 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2005 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2005 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2005 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2005 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2004 Resolved
Other · EPA contaminant 7000 began Jul 2001 Resolved

Recent enforcement actions

  • State action · SOX Apr 2022
  • State action · SFL Jul 2020
  • State action · SOX Jun 2006
  • State action · SIA Nov 2001
  • State action · SOX Nov 2001
  • State action · SIA Nov 2001
  • EPA/federal action · EOX Mar 2000
  • EPA/federal action · EOX Dec 1993

This profile is built from EPA public records for system CA0510001 — 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.