TapSafetyReport
B74/100

F.E. Warren Afb Tap Water Quality: Is It Safe to Drink? (2026 Report)

Serving 5,500 residents · Wyoming

What's In F.E. Warren Afb's Tap Water?

35
Contaminants Tested
1
Exceed EPA Limits
0
Above EPA Goals
1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Copper (90th percentile)
1.40 mg/L1.30 mg/LOver Limit

EPA Violation History

6

Violations (last 5yr)

0

Unresolved

0

Health-Related

TIER 3Resolved

Failed to complete routine monitoring

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2023 – April 30, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2023 – April 30, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2023 – March 31, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2023 – March 31, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: September 1, 2021 – November 30, 2021Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: September 1, 2021 – November 30, 2021Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway

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

USAF F.E. WARREN AFB
Population Served

5,500

Water Source

Purchased Surface Water

System ID

WY5680122

Frequently Asked Questions About F.E. Warren Afb Water

Is F.E. Warren Afb tap water safe to drink?

F.E. Warren Afb, Wyoming tap water receives a grade of B (74/100), which is considered good. Out of 35 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.

What contaminants are in F.E. Warren Afb's water?

Of the 35 contaminants tested in F.E. Warren Afb's water supply, the most notable include Copper (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.

Does F.E. Warren Afb have any water quality violations?

Yes, F.E. Warren Afb has 14 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, MON, MCL. 1 of these are health-based violations, which are the most serious category.

Do I need a water filter in F.E. Warren Afb?

Based on EPA data, using a water filter in F.E. Warren Afb is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.

Where does F.E. Warren Afb's tap water come from?

F.E. Warren Afb's drinking water is sourced from purchased surface water and supplied by USAF F.E. WARREN AFB. The system serves approximately 5,500 people. Surface water sources include rivers, lakes, and reservoirs.

How often is F.E. Warren Afb'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. F.E. Warren Afb'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 F.E. Warren Afb's water compare to other cities in Wyoming?

F.E. Warren Afb's water quality score of 74/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Wyoming state page to see how all cities in the state compare.

What should I do if I'm concerned about F.E. Warren Afb's water quality?

If you have concerns about F.E. Warren Afb'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 (USAF F.E. WARREN AFB) 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.

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