WaterQ
Wyoming State Report All States
Official Status: March 2026

Is Casper tap water safe to drink?

✓ Generally Safe
A

Mostly yes — Casper scores 94/100.

Safety Score
94
out of 100

Still not sure if you need a filter in Casper?

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Casper

Wyoming

View Wyoming state report Verified: Apr 2026

Is Casper tap water safe to drink?

Mostly yes — Casper scores 94/100. This report aggregates EPA drinking water data across 1 local system in Casper. We found 0 total violations (0 unresolved).

Real-Time Environment

Live: 02:45 PM
0mm Precipitation

☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Casper.

Water Quality Impact

✅ Minimal Impact Localized weather conditions may influence test result variability.

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Casper?

Requirement Status
Optional
🟢
💡

Expert Advice

Your water quality is excellent. Standard filtration is optional but can further enhance taste.

Buying a Filter?

Should you buy a water purifier in Casper? See our analysis.

Baby Formula Safety

Is Casper tap water safe for infants? Critical safety guide.

Homebuyer's Perspective

For those looking to relocate to Casper, water quality is a key factor in long-term property maintenance. The high safety score (94/100) suggests lower risk for plumbing corrosion and appliance scaling.

Property Impact: Positive / Stable

Health & Family Safety

Residents should monitor Copper levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.

View Health Risk Glossary →

Score Breakdown for Casper

EPA Compliance & Violations 85/100
Contaminant Safety Margin 94%

*Scores are calculated using weighted EPA monitoring data from the past 5 years.

Frequently Asked Questions

Is Casper tap water safe to drink?

Mostly yes — Casper scores 94/100.

How many water systems serve Casper?

Casper is served by 1 public water system in our latest EPA-backed dataset.

How can I check water quality for my exact address in Casper?

Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Casper.

What is the water quality score for Casper?

The water quality score for Casper is N/A out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.

What are the top contaminants in Casper?

The top contaminants detected in Casper include Copper, PFAS (Per- and Polyfluoroalkyl Substances), Benzene. View detailed information on our contaminants page.

Water Quality Score
94/100
Grade
A
Water Systems
4
Population
64,828

Casper Water Quality Summary

Casper, WY receives a water quality score of 94/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 4 public water systems serving the area.

Casper's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.

Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology →

Key Contaminants

Copper Violation
2.7499 / 1.3 mg/L
0 mg/L MCL: 1.3 mg/L
PFAS (Per- and Polyfluoroalkyl Substances) Violation
0.0068 / 0.004 μg/L
0 μg/L MCL: 0.004 μg/L
Benzene
4.4396 / 5 μg/L
0 μg/L MCL: 5 μg/L
PFOS (Perfluorooctane Sulfonate)
0.0034 / 0.004 μg/L
0 μg/L MCL: 0.004 μg/L
PFOA (Perfluorooctanoic Acid)
0.0032 / 0.004 μg/L
0 μg/L MCL: 0.004 μg/L
Nitrite
0.6104 / 1 mg/L
0 mg/L MCL: 1 mg/L
Chlorine
2.1046 / 4 mg/L
0 mg/L MCL: 4 mg/L
Arsenic
3.3106 / 10 μg/L
0 μg/L MCL: 10 μg/L

Water Systems Serving Casper (1)

Related

Compare Casper water quality: View all states · Contaminant library · How we score water quality