Iron County Water Quality
Iron County, Utah
Water Grade
F
Water Score
30.2
Violations
39
State Rank
#21
of 29 (1 = best)
EPA SDWIS Compliance
Drinking Water Quality
Water Quality Grade
F
Based on EPA compliance history and violation data
Water Score
30.2/100
Higher = better quality
Health Violations
39
Health-based violations
Violation Rate
66.1%
Systems with violations
Water Advisory: Iron County
Water Verdict
Iron County receives a poor water quality assessment with a grade of F and a score of 30.2 out of 100. The water supply has documented quality issues. Residents are strongly encouraged to use filtered or bottled water for drinking and to stay informed about utility improvement plans.
Violation Context
Iron County has recorded 39 health-based violations, indicating multiple instances where federal contaminant limits or treatment requirements were not met. At 66.1 violations per 1,000 residents, this rate is high and signals significant water quality management issues.
Consumer Guidance
Residents of Iron County are advised to use filtered or bottled water for drinking and cooking until water quality improves. A reverse-osmosis or activated-carbon filter certified to remove the contaminants listed in the utility's Consumer Confidence Report is recommended. With 39 recorded health violations, staying informed about utility communications and boil-water notices is especially important. For long-term peace of mind, request your utility's latest Consumer Confidence Report and consider independent water testing if you have specific health concerns.
Regional Context
Iron County has poorer water quality than the average county in Utah. Its water score is 17.5 points lower than the state average, suggesting more challenges with contamination control or infrastructure than neighboring counties.
Past 5 years
Water Quality Monitoring
Monitoring Sites
37
Active in the past 5 years
Measurements Recorded
4.2K
4,220 total readings
Most Measured
- Physical
- Nutrient
- Inorganics, Minor, Metals
Categories measured most frequently
Data from the EPA Water Quality Portal (WQP), aggregating monitoring records from federal, state, and tribal sources. Each measurement represents a single sample analyzed for a specific characteristic (e.g., E. coli, pH, dissolved oxygen, nitrogen).
Live USGS Streamgage
River & Stream Conditions
Current Discharge
27.4cfs
May 14, 7:10 PM UTC
vs Long-Term Average
83%
Below typicalPrimary Streamgage
COAL CREEK NEAR CEDAR CITY, UT
- USGS site
- 10242000
- Drainage area
- 80.9 sq mi
- Long-term mean
- 33.2 cfs
One representative streamgage (the one with the largest drainage area in the county). Many counties have multiple gauges — this view summarizes the primary one. The long-term mean is the full-record annual average; "% of typical" compares the latest reading against that average.
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Frequently Asked Questions
What is the water quality in Iron County, Utah?
Are there any water violations in Iron County?
How much water-quality monitoring happens in Iron County?
What's happening with rivers in Iron County right now?
How does Iron County water compare to the Utah average?
Is tap water safe to drink in Iron County?
Why does Iron County have so many water violations?
How does Iron County rank for water quality in Utah?
Counties with Similar Water Quality
Data Sources
Drinking-water compliance data from the EPA Safe Drinking Water Information System (SDWIS) via the ECHO enforcement database. Scores reflect compliance history and health-based violation counts.
Water-quality monitoring counts from the EPA Water Quality Portal (WQP) — federated USGS, EPA, and state agency sampling records over a rolling 5-year window.
Live streamflow from the USGS National Water Information System (NWIS) — continuous discharge measurements from the largest-drainage gauge in each county, compared against the full-record long-term annual mean.
Disclaimer: This data is informational only. It is not health, legal, or professional advice. For concerns about your specific water supply, contact your local water utility.