Frederick County contains 202 EPA-regulated facilities, 20 of which are currently flagged for significant noncompliance. The county also hosts 1 Superfund sites and 9 TRI chemical reporters. EPA has assessed $5.9M in lifetime penalties and TRI reporters disclosed roughly 0 lb of on-site releases. That facility count is well above the Maryland state average of 74 per county.
| Site | City | Status |
|---|---|---|
| Fort Detrick Area B Ground Water | Frederick | Listed on NPL |
| Facility | City | On-site (lb) | Status |
|---|
| Facility | City | Penalties | Last Inspected |
|---|---|---|---|
| Canam Steel Corp Point Of Rocks Plant | Point Of Rocks | $429.4k | 2024-06-13 |
| Smi - Winchester Bldg. | Frederick | $0 | |
| Zeager Bros. - Frederick, Md Site | Frederick | $0 | |
| Clover Ridge | Frederick | $0 | |
| Tayllyn Ridge Pool | Frederick | $0 | |
| Mount Saint Marys College | Emmitsburg | $0 | 2024-02-21 |
| Linton At Ballenger Creek Community Association, Inc. | Frederick | $0 | |
| Rocko Meats | Thurmont | $0 | 2025-12-19 |
| Glade Towne Community Association, Inc. | Walkersville | $0 | |
| Crestwood Village Hoa | Frderick | $0 | |
| Rockville Fuel & Feed Company Inc | Hargerstown | $0 | |
| Daneri Residence | Middletown | $0 | 2025-05-29 |
| Federal Stone Industries, Inc. | Thurmont | $0 | 2024-10-10 |
| Ray Siguenza | Middletown | $0 | |
| The Baltimore Yearly Meeting Of The Religious Society Of Friends | Thurmont | $0 | 2026-01-05 |
| Canal Run | Point Of Rocks | $0 | |
| Hunting Creek Fisheries, Inc. | Thurmont | $0 | 2024-02-06 |
| U.s. Natl. Park Service Catoctin Mountain Park (Cato) | Thurmont | $0 | |
| Thurmont Conservation And Sportman's Club | Thurmont | $0 | |
| Mta Brunswick Yard-Marcmaintenance Facility | Brunswick | $0 | 2015-07-23 |