Frederick, Maryland Tap Water Quality

Free EPA data for 30 community water systems serving 152,348+ residents. Click any system to see violations, lead test results, and a safety grade.

NEW DESIGN - FREDERICK COUNTY A

FREDERICK, MD · 74,911 people · Surface Water ✓ No recent health violations

CITY OF FREDERICK A

FREDERICK, MD · 54,000 people · Surface Water ✓ No recent health violations

FREDERICK, MD · 7,900 people · Surface Water 3 health violations in past 5 yrs

FOUNTAINDALE SOUTH A

FREDERICK, MD · 2,610 people · GWUDI ✓ No recent health violations

LINGANORE HIGH SCHOOL A

FREDERICK, MD · 1,722 people · Groundwater ✓ No recent health violations

KNOLLS OF WINDSOR A

FREDERICK, MD · 1,553 people · GWUDI ✓ No recent health violations

FREDERICK, MD · 1,509 people · Surface Water Purchased ✓ No recent health violations

SAM HILL ESTATES A

FREDERICK, MD · 1,036 people · Groundwater ✓ No recent health violations

CAMBRIDGE FARMS A

FREDERICK, MD · 953 people · Groundwater ✓ No recent health violations

CLOVERHILL 3 - CONSECUTIVE TO MD0100015 A

FREDERICK, MD · 888 people · Surface Water Purchased ✓ No recent health violations

KEMPTOWN ELEMENTARY A

FREDERICK, MD · 623 people · Groundwater ✓ No recent health violations

YELLOW SPRINGS ELEMENTARY A

FREDERICK, MD · 486 people · Groundwater ✓ No recent health violations

LIBERTY ELEMENTARY A

FREDERICK, MD · 466 people · Groundwater ✓ No recent health violations

FREDERICK, MD · 355 people · Groundwater ✓ No recent health violations

FREDERICK, MD · 338 people · Groundwater ✓ No recent health violations

COUNTRY MEADOWS OF FREDERICK A

FREDERICK, MD · 295 people · Surface Water Purchased ✓ No recent health violations

LEWISTOWN ELEMENTARY A

FREDERICK, MD · 267 people · Groundwater ✓ No recent health violations

FREDERICK, MD · 256 people · Groundwater ✓ No recent health violations

VANESSAS CORNER PUB (NEW YORK JP) A

FREDERICK, MD · 250 people · Groundwater ✓ No recent health violations

ROSEMONT DISTRIBUTION SYSTEM A

FREDERICK, MD · 237 people · Surface Water Purchased ✓ No recent health violations

LEWISTOWN VOLUNTEER FIRE DEPARTMENT A

FREDERICK, MD · 204 people · Groundwater ✓ No recent health violations

MOUNTAINDALE CONVENIENCE STORE A

FREDERICK, MD · 202 people · Groundwater ✓ No recent health violations

NEW LIFE CHRISTIAN SCHOOL A

FREDERICK, MD · 200 people · Groundwater ✓ No recent health violations

BRADFORD ESTATES A

FREDERICK, MD · 178 people · Groundwater ✓ No recent health violations

WOLFSVILLE ELEMENTARY A

FREDERICK, MD · 177 people · Groundwater ✓ No recent health violations

NEW MIDWAY ELEMENTARY A

FREDERICK, MD · 172 people · Groundwater ✓ No recent health violations

FREDERICK CHRISTIAN ACADEMY A

FREDERICK, MD · 150 people · Groundwater ✓ No recent health violations

LIBERTYTOWN SHOPPING CENTER A

FREDERICK, MD · 150 people · Groundwater ✓ No recent health violations

LIBERTYTOWN EAST A

FREDERICK, MD · 140 people · Groundwater ✓ No recent health violations

THE LUBE CENTER A

FREDERICK, MD · 120 people · Groundwater ✓ No recent health violations

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Frederick Drinking Water: Frequently Asked Questions

Is Frederick, Maryland tap water safe to drink?

Frederick has 30 community water systems regulated by the EPA. Each system is required to test regularly for hundreds of contaminants and publicly report any violations. Click any water system listed above to see its specific violation history, lead test results, and a plain-English safety grade.

How many water utilities serve Frederick, Maryland?

30 community water systems serve Frederick, Maryland, providing water to approximately 152,348 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.

Does Frederick tap water have lead?

Lead in drinking water typically enters from old pipes and fixtures inside homes and buildings, not from the treatment plant. The EPA requires water systems to monitor for lead under the Lead and Copper Rule. Click any water system above to see its most recent 90th-percentile lead test results. Homes built before 1986 are most likely to have lead plumbing components.

What contaminants have been found in Frederick drinking water?

EPA violation records for Frederick water systems are listed on each utility's report page. Common regulated contaminants include disinfection byproducts (TTHMs, HAA5), coliform bacteria, nitrates, and lead. Click any utility above to see its full violation history going back 10 years.

How do I find out which water company serves my address in Frederick?

Enter your Frederick ZIP code in the search box at the top of this page. ClearWater will identify the specific water system serving your area and show you its EPA violation history, lead test results, and an overall safety grade. You can also check your water bill or your utility's annual Consumer Confidence Report (CCR).