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WaterSafeCheck

Oak Creek, WI Tap Water Quality

Water safety reports for all 1 ZIP code in Oak Creek, Wisconsin

Average Score

77/100

Health Violations

1

ZIP Codes

1

High Lead Risk

0

of 1 ZIP codes

B

About Tap Water in Oak Creek, WI

The drinking water in Oak Creek, WI generally meets all federal health standards, earning a solid B grade with a composite safety score of 77/100 across 1 ZIP code. While the primary water utility, Oak Creek Waterworks, maintains adequate compliance with EPA regulations, there have been minor or administrative violations on record. Overall, residents receive safe tap water that is actively monitored by Wisconsin Department of Natural Resources.

Over the past 5 years, Oak Creek has recorded 1 health-based violation. While occasional violations can occur due to seasonal changes or temporary infrastructure issues, Oak Creek Waterworks 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 surface water, is treated to address these specific contaminants.

Fortunately, the modeled risk for widespread lead exposure in Oak Creek's municipal water is relatively low compared to national averages. However, because lead typically enters drinking water through the corrosion of older, individual home plumbing rather than the main supply lines, residents in homes built before 1986 should still exercise caution by running the tap before use.

Health-Based Contaminant Violations in Oak Creek

EPA records indicate that the following contaminants have exceeded Safe Drinking Water Act Maximum Contaminant Levels (MCLs) in Oak Creek 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 — Oak Creek, WI

Click any ZIP code for the full water quality report

B
53154

Oak Creek, WI

Score: 77/1001 violation

Frequently Asked Questions — Oak Creek Water Quality

Is tap water safe to drink in Oak Creek, WI?+
Yes — tap water in Oak Creek meets all federal EPA standards and earns a B 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 Oak Creek?+
The average water quality score across 1 ZIP code in Oak Creek, WI is 77/100. 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 Oak Creek have lead in its tap water?+
Lead risk ratings in Oak Creek are relatively low based on EPA monitoring data. However, lead in home plumbing is a separate concern — if your home was built before 1986, individual tap testing is recommended.
How do I get the water quality report for Oak Creek?+
Each ZIP code in Oak Creek 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 Oak Creek's tap water come from?+
Tap water in Oak Creek, WI primarily comes from surface water. Surface water systems treat water from rivers, lakes, or reservoirs using filtration, sedimentation, and disinfection before it reaches your tap.

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