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Water system · PWSID CA3610705

US ARMY FORT IRWIN

FORT IRWIN, CA · ~15,701 people served

Check your exact address → FORT IRWIN overview
100
Excellent
PurityRadar safety score

PWSID

CA3610705

State

California

City

FORT IRWIN

Population served

15,701

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

Lithium

11,000 ppt

limit —

No federal limit

Violations & enforcement

61

Violations on record

0

Unaddressed

60

Health-based

7

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2019. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2017 Resolved
Max contaminant level (MCL) · Fluoride health-based began Apr 2016 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2016 Resolved
Max contaminant level (MCL) · Fluoride health-based began Jan 2016 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2016 Resolved
Max contaminant level (MCL) · Fluoride health-based began Oct 2015 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2015 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2015 Resolved
Max contaminant level (MCL) · Fluoride health-based began Jul 2015 Resolved
Max contaminant level (MCL) · Fluoride health-based began Apr 2015 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2015 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2015 Resolved

Recent enforcement actions

  • State action · SOX Apr 2019
  • State action · SFL Sep 2018
  • State action · SOX Sep 2016
  • State action · SFL Feb 2012
  • State action · SFL Feb 2009
  • EPA/federal action · EOX Mar 2000
  • EPA/federal action · EFJ May 1993

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

21 stations · latest Oct 2023

4.3 · max 11.5 mg/l as N · 42

Arsenic

18 stations · latest Mar 2022

21 · max 65.9 ug/l · 18

Fluoride

18 stations · latest Mar 2022

5.14 · max 21.9 mg/l · 18

Uranium

18 stations · latest Mar 2022

7.01 · max 90.7 ug/l · 18

Copper

16 stations · latest Mar 2022

2.5 · max 10.1 ug/l · 16

Manganese

6 stations · latest Mar 2022

5.48 · max 743 ug/l · 6

Lead

2 stations · latest Mar 2022

0.034 · max 0.048 ug/l · 2

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 CA3610705 — 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.