B78/100
SOUTH CHEYENNE WATER & SEWER DISTRICT — Water Quality Report 2026
Serving 10,000 people · Wyoming
Water Source
Purchased Surface Water
County
—
System ID
WY5600239
Violations
11
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.006 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2024 – March 3, 2025Enforcement: 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 SOUTH CHEYENNE WATER & SEWER DISTRICT
Is SOUTH CHEYENNE WATER & SEWER DISTRICT water safe to drink?
SOUTH CHEYENNE WATER & SEWER DISTRICT water receives a grade of B (78/100), which is considered good. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has SOUTH CHEYENNE WATER & SEWER DISTRICT detected?
31 contaminants were tested in SOUTH CHEYENNE WATER & SEWER DISTRICT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does SOUTH CHEYENNE WATER & SEWER DISTRICT have any EPA violations?
Yes, SOUTH CHEYENNE WATER & SEWER DISTRICT has 11 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MR, MCL. 2 are health-based violations.
How many people does SOUTH CHEYENNE WATER & SEWER DISTRICT serve?
SOUTH CHEYENNE WATER & SEWER DISTRICT serves approximately 10,000 people, Wyoming. The system provides water to 1 community: Cheyenne.
What type of water does SOUTH CHEYENNE WATER & SEWER DISTRICT provide?
SOUTH CHEYENNE WATER & SEWER DISTRICT 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 WY5600239.
How does SOUTH CHEYENNE WATER & SEWER DISTRICT compare to other utilities in Wyoming?
SOUTH CHEYENNE WATER & SEWER DISTRICT scores 78/100 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.