Kent County, DE
The federal environmental record for Kent County (population 189,789): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
6
Superfund NPL sites
10
federal cleanup sites
1
PFAS-detecting water systems
10
TRI facilities
17
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Chem-Solv, Inc. | Cheswold | deleted | 08/30/1990 |
| Coker's Sanitation Service Landfills | Kent County | deleted | 07/22/1987 |
| Dover Air Force Base | Dover | on the NPL | 03/13/1989 |
| Dover Gas Light Co. | Dover | on the NPL | 10/04/1989 |
| Tyler Refrigeration Pit | Smyrna | deleted | 02/21/1990 |
| Wildcat Landfill | Dover | deleted | 09/08/1983 |
Drinking water: PFAS testing
Public water systems serving Kent 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 |
|---|---|---|
| SMYRNA WATER DEPARTMENT DE0000657 | PFOA: 9.8 ng/L PFBS: 6.9 ng/L PFOS: 6.7 ng/L | above final limit |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
10 facilities in Kent filed TRI reports for 2024, totalling 17k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| HANDYTUBE LLC | CAMDEN | Trichloroethylene, Nickel | 5k lb |
| BALTIMORE AIRCOIL CO | MILFORD | Nickel compounds, Chromium compounds (except for chromite ore mined in the Transvaal Region) | 4k lb |
| GARRISON ENERGY CENTER | DOVER | Ammonia | 3k lb |
| DENTSPLY SIRONA - MILFORD SITE | MILFORD | Methanol, Methyl methacrylate | 2k lb |
| METAL MASTERS FOOD SERVICE EQU IPMENT CO | CLAYTON | Chromium, Nickel | 2k lb |
| PERDUE FOODS LLC - MILFORD PROCESSING PLANT | MILFORD | Peracetic acid | 2k lb |
| US DOD USAF DOVER AFB | DOVER AFB | Naphthalene | 2 lb |
| GRIFFITH ENERGY SERVICES INC CARL KING INC | DOVER | - | 0 lb |
| HANOVER FOODS CORP | CLAYTON | - | 0 lb |
| HMA CONCRETE LLC DBA HERITAGE CONCRETE CHESWOLD FACILITY | CHESWOLD | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 589 tank facilities in Kent: 242 tanks in service and 1,705 closed. 805 fuel releases are on record, of which 17 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Kent as Zone 3, the lowest predicted indoor radon (under 2 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 Kent, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BOMBAY HOOK NAT'L WILDLIFE REFUGESMYRNA
- CHEM-SOLV, INC.DOVER
- COKER'S SANITATION SERVICE LANDFILLSCHESWOLD
- DOVER AIR FORCE BASEDOVER
- DOVER AREA PFC SITEDOVER
- DOVER GAS LIGHT CO.DOVER
- KENT COUNTY LANDFILL (HOUSTON)HOUSTON
- TYLER REFRIGERATION PITSMYRNA
- WHITE OAK SALVAGEDOVER
- WILDCAT LANDFILLDOVER