Frederick, Maryland Water Quality Report
Water quality data for 21 water systems serving 147,122 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFPeA | 0.004 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
Get a Free Water Quality Consultation
Connect with a certified water treatment professional in Frederick, Maryland.
Get Water Quality Alerts
Be the first to know when water quality changes in Frederick.
Compliance & Violations
Active Violations (2)
75
Mar 7, 2024
20
Mar 1, 2024
Resolved Violations (498)
3A
Apr 1, 2025 — Apr 30, 2025
3A
Apr 1, 2025 — Apr 30, 2025
3A
Apr 1, 2025 — Apr 30, 2025
4G
Oct 17, 2024
2E
Oct 17, 2024
+ 493 more resolved violations
Frequently Asked Questions
Is Frederick tap water safe to drink?
Frederick's water meets all EPA maximum contaminant levels. However, 1 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Frederick tap water?
1 contaminants have been detected in Frederick's water supply across 21 water systems. See the full contaminant table above for details.
How can I improve my water quality in Frederick?
Install a water filter rated for the specific contaminants found in Frederick's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Frederick have any water quality violations?
Yes, Frederick currently has 46 active violations. See the violations section above for details.