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WaterSafeCheck

Noble, OK Tap Water Quality

Water safety reports for all 1 ZIP code in Noble, Oklahoma

Average Score

76/100

Health Violations

7

ZIP Codes

1

High Lead Risk

0

of 1 ZIP codes

B

About Tap Water in Noble, OK

The drinking water in Noble, OK generally meets all federal health standards, earning a solid B grade with a composite safety score of 76/100 across 1 ZIP code. While the primary water utility, Noble Utilities Authority, 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 Oklahoma Department of Environmental Quality.

The accumulation of 7 health-based violations over the past 5 years highlights systemic challenges within Noble's water infrastructure. When violations occur, it means that drinking water tests revealed contaminant levels exceeding safe limits, triggering mandatory corrective actions by Oklahoma Department of Environmental Quality. The city relies on ground water, which may require significant treatment upgrades to address these recurring issues.

Fortunately, the modeled risk for widespread lead exposure in Noble'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 Noble

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

Stage 2 DBP RuleGross Alpha

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 — Noble, OK

Click any ZIP code for the full water quality report

B
73068

Noble, OK

Score: 76/1007 violations

Frequently Asked Questions — Noble Water Quality

Is tap water safe to drink in Noble, OK?+
Yes — tap water in Noble 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 Noble?+
The average water quality score across 1 ZIP code in Noble, OK is 76/100. 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 Noble have lead in its tap water?+
Lead risk ratings in Noble 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 Noble?+
Each ZIP code in Noble 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 Noble's tap water come from?+
Tap water in Noble, 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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