Charles County, MD
The federal environmental record for Charles County (population 171,973): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
4
federal cleanup sites
1
PFAS-detecting water systems
3
TRI facilities
1
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Indian Head Naval Surface Warfare Center | Indian Head | on the NPL | 09/29/1995 |
Drinking water: PFAS testing
Public water systems serving Charles with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| WALDORF - CHARLES COUNTY DPW MD0080049 | PFPeA: 6 ng/L PFHxA: 5.1 ng/L PFBS: 3.1 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
3 facilities in Charles filed TRI reports for 2024, totalling 205k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| U.S. NAVY NAVAL SUPPORT FACILITY INDIAN HEAD | INDIAN HEAD | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Lead And Lead Compounds | 205k lb |
| SMO BRYANS ROAD PLANT | BRYANS ROAD | - | 0 lb |
| SMO LA PLATA PLANT | LA PLATA | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 329 tank facilities in Charles: 189 tanks in service and 1,066 closed. 509 fuel releases are on record, of which 1 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Charles as Zone 2, moderate predicted indoor radon (2 to 4 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Charles, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BLOSSOM POINT FIELD TEST AREALA PLATA
- INDIAN HEAD NAVAL SURFACE WARFARE CENTERINDIAN HEAD
- NAVAL RESEARCH EXPERIMENTAL STATIONLA PLATA
- POMONKEY - LAUNCHLA PLATA