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WaterSafeCheck

Custer City, OK Tap Water Quality

Water safety reports for all 1 ZIP code in Custer City, Oklahoma

Average Score

89/100

Health Violations

1

ZIP Codes

1

High Lead Risk

1

of 1 ZIP codes

A

About Tap Water in Custer City, OK

Tap water in Custer City, OK ranks among the best in the state, maintaining a remarkable average water quality score of 89/100 across its 1 ZIP code. Based on recent EPA Safe Drinking Water Act compliance records, water provided by Custer County Rwd #3 and other municipal suppliers has consistently met or exceeded federal safety standards. This top-tier "A" grade reflects strong infrastructure, diligent monitoring by Oklahoma Department of Environmental Quality, and low contaminant levels.

Over the past 5 years, Custer City has recorded 1 health-based violation. While occasional violations can occur due to seasonal changes or temporary infrastructure issues, Custer County Rwd #3 is legally required to resolve these quickly and notify the public via their annual Consumer Confidence Report. The city's water supply, primarily drawn from ground water, is treated to address these specific contaminants.

Additionally, lead exposure risk remains a critical issue for certain neighborhoods. EPA data indicates that 1 out of 1 ZIP codes in Custer City are rated as High or Very High risk for lead. This risk is often driven by aging homes with pre-1986 plumbing containing lead solder or service lines. Families in these areas should test their tap water and consider NSF/ANSI 53 certified filters.

⚠ Lead Risk Alert: Some ZIP codes in Custer City are rated High or Very High for lead exposure risk based on EPA data. Search your specific ZIP code for a detailed lead level report.

Health-Based Contaminant Violations in Custer City

EPA records indicate that the following contaminants have exceeded Safe Drinking Water Act Maximum Contaminant Levels (MCLs) in Custer City water systems over the past 5 years.

Stage 2 DBP Rule

Note: The presence of a past violation does not necessarily mean current water is unsafe. Utilities are required to take corrective action. Review your Consumer Confidence Report for the latest status.

Water Quality by ZIP Code — Custer City, OK

Click any ZIP code for the full water quality report

A
73639

Custer City, OK

Score: 89/1001 violation

Frequently Asked Questions — Custer City Water Quality

Is tap water safe to drink in Custer City, OK?+
Yes — tap water in Custer City meets all federal EPA standards and earns a A grade. It is generally safe for healthy adults. As always, running your tap for 30 seconds before use and using a filter adds extra protection for vulnerable populations.
What is the water quality score for Custer City?+
The average water quality score across 1 ZIP code in Custer City, OK is 89/100. Scores are derived from EPA violation history, lead levels, enforcement actions, and infrastructure risk indicators. Individual ZIP codes may vary — search your specific ZIP above for a personalized report.
Does Custer City have lead in its tap water?+
1 out of 1 ZIP codes in Custer City are rated High or Very High for lead exposure risk. Older homes built before 1986 may have lead service lines or plumbing fixtures. Residents should run their tap for 30 seconds before use and consider a certified NSF/ANSI 53 lead filter.
How do I get the water quality report for Custer City?+
Each ZIP code in Custer City has a full water quality report on this site — click any ZIP code below. You can also get the annual Consumer Confidence Report (CCR) from your local water utility. The CCR is required to be published every year by July 1 and contains actual contaminant measurements and violation history.
Where does Custer City's tap water come from?+
Tap water in Custer City, OK primarily comes from ground water. Groundwater systems pump water from underground aquifers, which is naturally filtered through soil and rock but can still contain naturally occurring contaminants.

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