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Water system · PWSID CA1910090

MONROVIA-CITY, WATER DEPT.

MONROVIA, CA · ~37,931 people served

Check your exact address → MONROVIA overview
62
Fair
PurityRadar safety score

PWSID

CA1910090

State

California

City

MONROVIA

Population served

37,931

Primary source

Groundwater

Score history

▼ 38 points — the score moved from 100 to 62 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 62

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

6.1 ppt

limit 4 ppt

Above EPA limit · 1.5×

PFOA

Perfluorooctanoic acid

5.4 ppt

limit 4 ppt

Above EPA limit · 1.4×

PFHxS

Perfluorohexanesulfonic acid

3.5 ppt

limit 10 ppt

Below EPA limit

PFHxA

14 ppt

limit —

No federal limit

PFPeA

9.7 ppt

limit —

No federal limit

PFBA

5.2 ppt

limit —

No federal limit

Violations & enforcement

1

Violations on record

0

Unaddressed

0

Health-based

3

Enforcement actions

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

Monitoring & reporting · Nitrate began May 2023 Resolved

Recent enforcement actions

  • State action · SOX May 2024
  • State action · SFL May 2023
  • EPA/federal action · EFJ May 1993

This profile is built from EPA public records for system CA1910090 — 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.