Fort Irwin, CA Water Safety: 72/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Throughout Fort Irwin and across its water systems, EPA compliance data for CA shows above-average performance — violations are minimal, none of the tracked systems have recorded repeated MCL exceedances in recent cycles, and the safety picture has held steady across multiple reporting periods.
How Fort Irwin Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Fort Irwin Water
- Homes built before 1986: 35% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 11.58.
Who Supplies Your Water in Fort Irwin
Most residential addresses in Fort Irwin, CA are served by a single water utility — the dominant system among the 1 provider tracked in federal data.
Overview
We track water quality and home safety data for 1 ZIP code in Fort Irwin, California (population ~8,791), covering 1 community water system serving approximately 15,701 people region-wide.
No EPA violations recorded across any ZIP codes in Fort Irwin — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Fort Irwin: B (72/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Fort Irwin water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Fort Irwin
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 92310 | B | Us Army Fort Irwin | 15,701 |
All ZIP Codes in Fort Irwin
- 92310 [B]
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Health Outcomes in Fort Irwin
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Housing & Infrastructure in Fort Irwin
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Over the decades, Fort Irwin accumulated housing from multiple construction periods. The median build year of 1995 places the midpoint of that stock near the 1986 threshold when lead solder in plumbing became federally prohibited — leaving a sizable share of homes on each side of that safety line.
Most homes in Fort Irwin were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Lead Exposure Risk for Children in Fort Irwin
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Practically, the structural drivers in Fort Irwin — 35% pre-rule stock and citywide monitoring at or beyond the regulatory benchmark — make an in-home draw the practical way to translate aggregate averages into the specific conditions at one address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Fort Irwin, CA