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Water system · PWSID CA1010003

CITY OF CLOVIS

CLOVIS, CA · ~130,130 people served

Check your exact address → CLOVIS overview
31
Action needed
PurityRadar safety score

PWSID

CA1010003

State

California

City

CLOVIS

Population served

130,130

Primary source

Surface water

Score history

▼ 69 points — the score moved from 100 to 31 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 31

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 2023). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

41 ppt

limit 4 ppt

Above EPA limit · 10.3×

PFOA

Perfluorooctanoic acid

18 ppt

limit 4 ppt

Above EPA limit · 4.5×

PFNA

Perfluorononanoic acid

6.9 ppt

limit 10 ppt

Near EPA limit

PFHxS

Perfluorohexanesulfonic acid

3.2 ppt

limit 10 ppt

Below EPA limit

PFPeA

8.4 ppt

limit —

No federal limit

PFHxA

8 ppt

limit —

No federal limit

PFBA

6.1 ppt

limit —

No federal limit

PFBS

6.1 ppt

limit —

No federal limit

PFHpA

5.7 ppt

limit —

No federal limit

PFDA

3 ppt

limit —

No federal limit

Violations & enforcement

5

Violations on record

0

Unaddressed

4

Health-based

14

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2014. Official EPA record →

Monitoring & reporting · Total coliform began Aug 2013 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 1993 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 1992 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1992 Resolved
Max contaminant level (MCL) · EPA contaminant 2931 health-based began Jul 1989 Resolved

Recent enforcement actions

  • State action · SOX Jul 2014
  • State action · SIA Oct 2013
  • EPA/federal action · EOX Mar 2000
  • EPA/federal action · EOX Dec 1993
  • State action · SOX May 1993
  • State action · SFL May 1993
  • EPA/federal action · EFL Dec 1992
  • EPA/federal action · EOX Dec 1992

This profile is built from EPA public records for system CA1010003 — 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.