Marshall, Oklahoma Water Quality Report
Water quality data for 2 water systems serving 1,876 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (20)
Violation
Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
Resolved Violations (128)
71
Jul 1, 2025
4G
Oct 17, 2024
4G
Oct 17, 2024
2E
Oct 17, 2024
2E
Oct 17, 2024
+ 123 more resolved violations
Frequently Asked Questions
Is Marshall tap water safe to drink?
Marshall's water meets all EPA maximum contaminant levels. However, 0 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Marshall tap water?
0 contaminants have been detected in Marshall's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Marshall?
Install a water filter rated for the specific contaminants found in Marshall's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Marshall have any water quality violations?
Yes, Marshall currently has 20 active violations. See the violations section above for details.