Home/ Directory/ CA/ EAST VALLEY WATER DISTRICT

Water system · PWSID CA3610064

EAST VALLEY WATER DISTRICT

HIGHLAND, CA · ~108,629 people served

Check your exact address → HIGHLAND overview
34
Action needed
PurityRadar safety score

PWSID

CA3610064

State

California

City

HIGHLAND

Population served

108,629

Primary source

Surface water

Score history

▼ 66 points — the score moved from 100 to 34 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 34

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 Apr 2025). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

12 ppt

limit 4 ppt

Above EPA limit · 3.0×

PFOA

Perfluorooctanoic acid

9 ppt

limit 4 ppt

Above EPA limit · 2.3×

PFHxS

Perfluorohexanesulfonic acid

3.8 ppt

limit 10 ppt

Below EPA limit

Lithium

13,400 ppt

limit —

No federal limit

PFBS

7.4 ppt

limit —

No federal limit

PFPeA

4.2 ppt

limit —

No federal limit

PFHxA

4.1 ppt

limit —

No federal limit

PFHpA

3.1 ppt

limit —

No federal limit

Violations & enforcement

3

Violations on record

0

Unaddressed

3

Health-based

9

Enforcement actions

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

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2017 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2017 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2017 Resolved

Recent enforcement actions

  • State action · SOX Mar 2023
  • State action · SFL Apr 2017
  • State action · SOX Jul 2011
  • State action · SFL Jun 2010
  • EPA/federal action · EOX Mar 2000
  • EPA/federal action · EOX Dec 1993
  • EPA/federal action · EO+ Nov 1993
  • EPA/federal action · EFL Dec 1992

This profile is built from EPA public records for system CA3610064 — 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.