D
53

Poor Water Quality

Cheyenne, OK 73628

Roger Mills County · Population served: 978 · Data updated March 2026

Water Systems Serving This Area

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CHEYENNE
Surface water · Pop. 778
PWSID: OK1010803
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ROGER MILLS RWS & SWMD #1
Groundwater · Pop. 200
PWSID: OK2006502

Violation History (Last 5 Years)

85Total (5yr)
9Health-Based
71Major

Water Quality Summary

Understanding Your Water in Cheyenne

Tap water quality in Cheyenne, Oklahoma (73628) receives an overall grade of D (Poor) with a score of 53 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 6 points below the Oklahoma state average of 59. Compared to the national average (75), this area scores significantly lower. The area is served by 2 water systems providing water to approximately 978 people, using surface water and groundwater sources. Over the past 5 years, water systems here have accumulated 85 violations, including 9 health-based violations.

Your Score 53/100 D
vs State 6 pts below Oklahoma avg (59)
vs National 22 pts below national avg (75)

What a Grade D Means

A score of 53/100 signals poor water quality in Cheyenne, OK. Significant issues have been identified, which may include multiple violations, contaminant levels near or above regulatory limits, or PFAS contamination. We recommend reviewing the detailed contaminant data below, considering a certified water filter, and checking your utility's Consumer Confidence Report for the latest information.

Surface water: sourced from rivers, lakes, or reservoirs
Groundwater: drawn from underground aquifers via wells

Common Questions

Frequently Asked Questions

Tap water in Cheyenne, Oklahoma receives a grade of D (Poor) with a score of 53/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 73628 is served by 2 water systems using surface water, groundwater sources, providing water to approximately 978 people. Multiple source types mean your water may come from a blend of surface and underground sources.

No lead data is currently available for ZIP code 73628. This may mean lead testing results haven't been reported recently, or the serving water system uses monitoring waivers. You can request a free lead test kit from most water utilities or purchase a certified home testing kit.

No PFAS ("forever chemicals") were detected in water systems serving Cheyenne, Oklahoma during the most recent EPA monitoring period (UCMR5). However, not all water systems have been tested for all PFAS compounds, and new contamination can occur over time.

Water systems serving Cheyenne, Oklahoma have received 85 violations in the last 5 years, including 9 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Water in Cheyenne, Oklahoma shows no major contaminant concerns based on available data. A basic carbon filter can improve taste and reduce chlorine. For extra peace of mind, an NSF-certified pitcher filter or faucet-mount filter provides an affordable layer of protection.

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