F0/100
Fort Irwin Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 15,701 residents · California
What's In Fort Irwin's Tap Water?
73
Contaminants Tested
0
Exceed EPA Limits
3
Above EPA Goals
3 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 630.00 µg/L | — | Above Goal |
molybdenum | 59.00 µg/L | — | Above Goal |
vanadium | 51.00 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2017.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
US ARMY FORT IRWIN
Population Served
15,701
Water Source
Groundwater
System ID
CA3610705
Frequently Asked Questions About Fort Irwin Water
Is Fort Irwin tap water safe to drink?
Fort Irwin, California tap water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA maximum contaminant levels and 61 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Fort Irwin's water?
Of the 73 contaminants tested in Fort Irwin's water supply, the most notable include chlorate, molybdenum, vanadium. No contaminants exceed EPA legal limits. 3 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Fort Irwin have any water quality violations?
Yes, Fort Irwin has 61 EPA violation(s) on record, with the most recent in 2017. Violation types include MR, MCL. 60 of these are health-based violations, which are the most serious category.
Do I need a water filter in Fort Irwin?
Fort Irwin water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 3 contaminant(s) exceed these stricter goals.
Where does Fort Irwin's tap water come from?
Fort Irwin's drinking water is sourced from groundwater and supplied by US ARMY FORT IRWIN. The system serves approximately 15,701 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Fort Irwin's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Fort Irwin's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Fort Irwin's water compare to other cities in California?
Fort Irwin's water quality score of 0/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our California state page to see how all cities in the state compare.
What should I do if I'm concerned about Fort Irwin's water quality?
If you have concerns about Fort Irwin's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (US ARMY FORT IRWIN) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.