Simpson County, MS
The federal environmental record for Simpson County (population 25,715): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
1
federal cleanup sites
1
PFAS-detecting water systems
1
TRI facilities
15
open tank releases
Drinking water: PFAS testing
Public water systems serving Simpson 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 |
|---|---|---|
| SMITHS CROSSING WATER ASSN MS0640014 | PFOS: 10.8 ng/L | above final limit |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
1 facilities in Simpson filed TRI reports for 2024, totalling 0 lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| TYSON FARMS MAGEE MS FEED MILL | MAGEE | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 128 tank facilities in Simpson: 72 tanks in service and 272 closed. 36 fuel releases are on record, of which 15 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Simpson 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 Simpson, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- W.G. AVERY BODY CO., INC.MAGEE