B67/100
RIVERTON, CITY OF — Water Quality Report 2026
Serving 10,330 people · Wyoming
Water Source
Surface Water
County
—
System ID
WY5600047
Violations
6
Contaminant Test Results
3 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFHxS | 0.037 µg/L | 0.010 µg/L | Over Limit |
PFOS | 0.007 µg/L | 0.004 µg/L | Over Limit |
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
2
Health-Related
TIER 2Resolved
Violation related to Lead and Copper Rule
When: June 1, 2023 – August 10, 2023Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Failed treatment technique requirements
When: May 1, 2021 – May 31, 2021Rule: Surface Water Treatment RuleEnforcement: 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 RIVERTON, CITY OF
Is RIVERTON, CITY OF water safe to drink?
RIVERTON, CITY OF water receives a grade of B (67/100), which is considered good. Out of 72 contaminants tested, 2 exceed EPA legal limits. 3 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has RIVERTON, CITY OF detected?
72 contaminants were tested in RIVERTON, CITY OF's water. Notable contaminants include PFHxS, PFOS, Lead (90th percentile). 2 exceed EPA legal limits (MCLs). 3 exceed EPA health goals (MCLGs).
Does RIVERTON, CITY OF have any EPA violations?
Yes, RIVERTON, CITY OF has 6 EPA violation(s) on record, with the most recent in 2023. Violation types include TT, MR. 2 are health-based violations.
How many people does RIVERTON, CITY OF serve?
RIVERTON, CITY OF serves approximately 10,330 people, Wyoming. The system provides water to 1 community: Riverton.
What type of water does RIVERTON, CITY OF provide?
RIVERTON, CITY OF sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is WY5600047.
How does RIVERTON, CITY OF compare to other utilities in Wyoming?
RIVERTON, CITY OF scores 67/100 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.