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B74/100

USAF F.E. WARREN AFB — Water Quality Report 2026

Serving 5,500 people · Wyoming

Water Source
Purchased Surface Water
County
—
System ID
WY5680122
Violations
14

Contaminant Test Results

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

Frequently Asked Questions About USAF F.E. WARREN AFB

Is USAF F.E. WARREN AFB water safe to drink?

USAF F.E. WARREN AFB water receives a grade of B (74/100), which is considered good. Out of 35 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.

What contaminants has USAF F.E. WARREN AFB detected?

35 contaminants were tested in USAF F.E. WARREN AFB's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).

Does USAF F.E. WARREN AFB have any EPA violations?

Yes, USAF F.E. WARREN AFB has 14 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, MON, MCL. 1 are health-based violations.

How many people does USAF F.E. WARREN AFB serve?

USAF F.E. WARREN AFB serves approximately 5,500 people, Wyoming. The system provides water to 1 community: Cheyenne.

What type of water does USAF F.E. WARREN AFB provide?

USAF F.E. WARREN AFB sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is WY5680122.

How does USAF F.E. WARREN AFB compare to other utilities in Wyoming?

USAF F.E. WARREN AFB scores 74/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Wyoming state page for a full comparison of water systems.

Cities Served

Cheyenne