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WaterSafeCheck

Washington, LA Tap Water Quality

Water safety reports for all 1 ZIP code in Washington, Louisiana

Average Score

89/100

Health Violations

1

ZIP Codes

1

High Lead Risk

0

of 1 ZIP codes

A

About Tap Water in Washington, LA

Tap water in Washington, LA 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 Town of Leonville Water System and other municipal suppliers has consistently met or exceeded federal safety standards. This top-tier "A" grade reflects strong infrastructure, diligent monitoring by Louisiana Department of Health, and low contaminant levels.

Over the past 5 years, Washington has recorded 1 health-based violation. While occasional violations can occur due to seasonal changes or temporary infrastructure issues, Town of Leonville Water System 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.

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

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

Contaminant 0700

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 — Washington, LA

Click any ZIP code for the full water quality report

A
70589

Washington, LA

Score: 89/1001 violation

Frequently Asked Questions — Washington Water Quality

Is tap water safe to drink in Washington, LA?+
Yes — tap water in Washington 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 Washington?+
The average water quality score across 1 ZIP code in Washington, LA 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 Washington have lead in its tap water?+
Lead risk ratings in Washington 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 Washington?+
Each ZIP code in Washington 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 Washington's tap water come from?+
Tap water in Washington, LA 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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