Marshall County, MS
The federal environmental record for Marshall County (population 34,123): 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
5
TRI facilities
17
open tank releases
Drinking water: PFAS testing
Public water systems serving Marshall 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 |
|---|---|---|
| CITY OF HOLLY SPRINGS MS0470002 | PFOS: 9.6 ng/L PFOA: 6.7 ng/L PFHxS: 4.3 ng/L | above final limit |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
5 facilities in Marshall filed TRI reports for 2024, totalling 134k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| ROXUL USA INC | BYHALIA | Ammonia, Chromium compounds (except for chromite ore mined in the Transvaal Region) | 96k lb |
| AC POLYMERS INC | BYHALIA | Styrene | 38k lb |
| CITE ARMORED HOLLY SPRINGS | HOLLY SPRINGS | Manganese, Copper | 25 lb |
| CARGILL FEED & NUTRITION BYHALIA | BYHALIA | - | 0 lb |
| MMC MATERIALS INC - BYHALIA PLNT | BYHALIA | Lead | 0 lb |
Underground fuel tanks
EPA's UST Finder records 138 tank facilities in Marshall: 100 tanks in service and 268 closed. 30 fuel releases are on record, of which 17 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Marshall 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 Marshall, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- ENTERPRISE RECOVERY SYSTEMBYHALIA