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Water system · PWSID CA1910101

ORCHARD DALE WATER DISTRICT

WHITTIER, CA · ~25,000 people served

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

PWSID

CA1910101

State

California

City

WHITTIER

Population served

25,000

Primary source

GWP

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

17 ppt

limit 4 ppt

Above EPA limit · 4.3×

PFOA

Perfluorooctanoic acid

9.9 ppt

limit 4 ppt

Above EPA limit · 2.5×

PFHxS

Perfluorohexanesulfonic acid

4 ppt

limit 10 ppt

Below EPA limit

PFPeA

10 ppt

limit —

No federal limit

PFBA

8.8 ppt

limit —

No federal limit

PFBS

7.2 ppt

limit —

No federal limit

PFHxA

7.2 ppt

limit —

No federal limit

Violations & enforcement

5

Violations on record

0

Unaddressed

4

Health-based

10

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2021. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2020 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2001 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 1999 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1993 Resolved

Recent enforcement actions

  • State action · SOX Jun 2021
  • State action · SFL Nov 2020
  • State action · SOX Dec 2008
  • State action · SFL Dec 2008
  • State action · SFL Dec 2001
  • State action · SOX Nov 2001
  • State action · SOX Nov 1999
  • State action · SFJ Nov 1999

This profile is built from EPA public records for system CA1910101 — 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.