F18/100
Star Valley Ranch Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 2,030 residents · Wyoming
What's In Star Valley Ranch's Tap Water?
1
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.008 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
1
Unresolved
1
Health-Related
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, 2024 – December 31, 2024Rule: 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, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 2Unresolved
Monitoring violation
When: April 21, 2023Rule: Total Coliform RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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
STAR VALLEY RANCH, TOWN OF
Population Served
2,030
Water Source
Groundwater
System ID
WY5600287
Frequently Asked Questions About Star Valley Ranch Water
Is Star Valley Ranch tap water safe to drink?
Star Valley Ranch, Wyoming tap water receives a grade of F (18/100), which is considered failing. 0 contaminant(s) exceed EPA maximum contaminant levels and 51 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Star Valley Ranch's water?
Of the 1 contaminants tested in Star Valley Ranch's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Star Valley Ranch have any water quality violations?
Yes, Star Valley Ranch has 51 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, TT, Other. 7 of these are health-based violations, which are the most serious category.
Do I need a water filter in Star Valley Ranch?
Star Valley Ranch 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. 1 contaminant(s) exceed these stricter goals.
Where does Star Valley Ranch's tap water come from?
Star Valley Ranch's drinking water is sourced from groundwater and supplied by STAR VALLEY RANCH, TOWN OF. The system serves approximately 2,030 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Star Valley Ranch'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. Star Valley Ranch'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 Star Valley Ranch's water compare to other cities in Wyoming?
Star Valley Ranch's water quality score of 18/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our Wyoming state page to see how all cities in the state compare.
What should I do if I'm concerned about Star Valley Ranch's water quality?
If you have concerns about Star Valley Ranch'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 (STAR VALLEY RANCH, TOWN OF) 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.