Frederick Water Quality
Maryland
The tap water in Frederick, Maryland is served by 19 EPA-regulated water systems covering approximately 147,122 people. 12 health-based violations are on record, most recently for 5200 in 2024. Data source: EPA Safe Drinking Water Information System.
Drinking water in Frederick, Maryland is delivered through 19 EPA-regulated community water systems serving an estimated 147,122 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
The SDWIS record for Frederick shows 12 total violations across all 19 systems, of which 12 are health-based, meaning either a Maximum Contaminant Level (MCL) was exceeded or a required treatment technique was not followed. Contaminants cited in health-based violations include 5200, 2950, 2456, 0300, 0800. 8 TRI-reporting industrial facilities are also located within the city limits.
A past EPA violation does not mean the water is currently unsafe, utilities are required to notify customers and remediate under state primacy oversight. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Maryland drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| NEW DESIGN - FREDERICK COUNTY | 74,911 | 0 | Clean |
| CITY OF FREDERICK | 54,000 | 1 | Health |
| FORT DETRICK | 7,900 | 5 | Health |
| FOUNTAINDALE SOUTH | 2,610 | 0 | Clean |
| KNOLLS OF WINDSOR | 1,553 | 0 | Clean |
| WATERSIDE | 1,509 | 0 | Clean |
| SAM HILL ESTATES | 1,036 | 0 | Clean |
| CAMBRIDGE FARMS | 953 | 0 | Clean |
| CLOVERHILL 3 - CONSECUTIVE TO MD0100015 | 888 | 3 | Health |
| COPPERFIELD | 338 | 0 | Clean |
| COUNTRY MEADOWS OF FREDERICK | 295 | 0 | Clean |
| WHITE ROCK | 256 | 0 | Clean |
| ROSEMONT DISTRIBUTION SYSTEM | 237 | 0 | Clean |
| BRADFORD ESTATES | 178 | 0 | Clean |
| LIBERTYTOWN EAST | 140 | 0 | Clean |
| TRANQUILITY AT FREDERICKTOWNE | 105 | 2 | Health |
| LIBERTYTOWN APARTMENTS | 97 | 0 | Clean |
| POLINGS MOBILE HOME PARK | 80 | 0 | Clean |
| AMELANO MANOR | 36 | 1 | Health |
Does this city have health-based water violations?
Health-based violations indicate contaminant levels that exceeded EPA maximum contaminant levels (MCLs). This does not necessarily mean water is currently unsafe.
| Contaminant | Begin Date |
|---|---|
| 5200 | 2024-10-17 |
| 5200 | 2024-10-17 |
| 5200 | 2024-10-17 |
| 2950 | 2024-07-01 |
| 2950 | 2024-07-01 |
| 2950 | 2024-07-01 |
| 2950 | 2020-04-01 |
| 2456 | 2018-01-01 |
| 2456 | 2017-10-01 |
| 2456 | 2017-07-01 |
| 0300 | 2016-07-01 |
| 0800 | 2009-10-01 |
TRI Facilities in Frederick
| Facility | Total Releases |
|---|---|
| Lafarge Frederick Ready Mix | 571 lbs |
| Rinker Materials Hydro Conduit | 0 lbs |
| Schuster Concrete Ready Mix Llc-South St | 0 lbs |
| McCormick Paint Works Co | 0 lbs |
| American Computer Development Inc (dba Acdi) | 0 lbs |
| Griffith Energy Services Inc Frederick Bulk Plant | 0 lbs |
| Oldcastle Lawn & Garden | 0 lbs |
| Rinker Frederick Pipe | 0 lbs |
Frequently Asked Questions
Is Frederick, Maryland water safe to drink? ▼
How many water violations does Frederick have? ▼
What contaminants were found in Frederick water? ▼
How many water systems serve Frederick? ▼
Where does Frederick get its drinking water? ▼
Are there pollution sources near Frederick? ▼
About This Data
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). Violations are reported by state agencies to EPA and include both health-based (MCL exceedances) and monitoring/reporting violations.
A reported violation does not necessarily mean water is currently unsafe to drink. Many violations are resolved quickly, and public water systems are required to notify customers of significant issues. For current water quality, contact your local water utility.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.