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Water system · PWSID CA3310006

BANNING, CITY OF

BANNING, CA · ~31,680 people served

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

PWSID

CA3310006

State

California

City

BANNING

Population served

31,680

Primary source

Groundwater

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

Lithium

16,000 ppt

limit —

No federal limit

PFBA

8 ppt

limit —

No federal limit

Violations & enforcement

10

Violations on record

0

Unaddressed

7

Health-based

20

Enforcement actions

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

Monitoring & reporting · Nitrate began Jan 2021 Resolved
Monitoring & reporting · Total coliform began May 2011 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2004 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2003 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2000 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 1996 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 1993 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 1993 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 1993 Resolved

Recent enforcement actions

  • State action · SFL Jun 2022
  • State action · SOX Jan 2022
  • State action · SOX Jun 2011
  • State action · SIA Jun 2011
  • State action · SIA Mar 2006
  • State action · SOX Jan 2006
  • State action · SOX Sep 2004
  • State action · SFL Sep 2004

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

9 stations · latest Apr 2022

2.15 · max 5.65 mg/l as N · 18

Fluoride

9 stations · latest Apr 2022

0.38 · max 1.23 mg/l · 9

Uranium

9 stations · latest Apr 2022

1.61 · max 2.71 ug/l · 9

Arsenic

8 stations · latest Apr 2022

0.38 · max 4.4 ug/l · 8

Lead

3 stations · latest Aug 2021

0.077 · max 0.357 ug/l · 3

Manganese

3 stations · latest Apr 2022

0.67 · max 1.09 ug/l · 3

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system CA3310006 — 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.