Ellicott City, Maryland Water Quality Report
Water quality data for 7 water systems serving 939 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (15)
72
Oct 1, 2024
75
Oct 11, 2020
75
Oct 11, 2020
75
Oct 11, 2020
75
Oct 11, 2020
72
Oct 1, 2020
72
Oct 1, 2020
71
Jul 1, 2020
71
Jul 1, 2020
75
May 3, 2020
75
May 3, 2020
4F
Mar 23, 2020
4F
Mar 23, 2020
2A
Mar 23, 2020
2A
Mar 23, 2020
Resolved Violations (485)
27
Jul 1, 2025 — Sep 30, 2025
27
Jul 1, 2025 — Sep 30, 2025
27
Jul 1, 2025 — Sep 30, 2025
71
Jul 1, 2025
27
Jul 1, 2025 — Sep 30, 2025
+ 480 more resolved violations
Frequently Asked Questions
Is Ellicott City tap water safe to drink?
Ellicott City'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 Ellicott City tap water?
0 contaminants have been detected in Ellicott City's water supply across 7 water systems. See the full contaminant table above for details.
How can I improve my water quality in Ellicott City?
Install a water filter rated for the specific contaminants found in Ellicott City's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Ellicott City have any water quality violations?
Yes, Ellicott City currently has 37 active violations. See the violations section above for details.