Mercedes, Texas Water Quality Report
Water quality data for 3 water systems serving 17,858 people.
Water Source
Detected Contaminants
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Compliance & Violations
Active Violations (36)
66
Sep 29, 2025
66
Sep 29, 2025
75
May 1, 2025
2E
Oct 17, 2024
4G
Oct 17, 2024
4G
Oct 17, 2024
2E
Oct 17, 2024
57
Oct 1, 2022
57
Oct 1, 2022
57
Oct 1, 2022
57
Apr 1, 2022
57
Apr 1, 2022
57
Apr 1, 2022
57
Mar 31, 2022
57
Mar 31, 2022
57
Mar 31, 2022
57
Feb 26, 2022
57
Feb 26, 2022
57
Feb 26, 2022
56
Oct 1, 2021
56
Oct 1, 2021
56
Oct 1, 2021
65
Aug 31, 2019
65
Aug 31, 2019
65
Aug 31, 2019
56
Oct 1, 2018
56
Oct 1, 2018
56
Oct 1, 2018
56
Oct 1, 2018
75
Jul 13, 2013
75
Apr 15, 2011
75
Apr 15, 2011
75
Apr 15, 2011
75
Jan 10, 2011
75
Jan 10, 2011
75
Jan 10, 2011
Resolved Violations (464)
66
Apr 1, 2025
66
Apr 1, 2025
66
Apr 1, 2025
66
Apr 1, 2025
75
Mar 10, 2025
+ 459 more resolved violations
Frequently Asked Questions
Is Mercedes tap water safe to drink?
Mercedes's water meets all EPA maximum contaminant levels. However, 2 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Mercedes tap water?
2 contaminants have been detected in Mercedes's water supply across 3 water systems. See the full contaminant table above for details.
How can I improve my water quality in Mercedes?
Install a water filter rated for the specific contaminants found in Mercedes's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Mercedes have any water quality violations?
Yes, Mercedes currently has 60 active violations. See the violations section above for details.