Allen County, KS
The federal environmental record for Allen County (population 12,412): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
3
federal cleanup sites
1
PFAS-detecting water systems
4
TRI facilities
7
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Former United Zinc & Associated Smelters | Iola | on the NPL | 05/24/2013 |
Drinking water: PFAS testing
Public water systems serving Allen 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 |
|---|---|---|
| IOLA, CITY OF KS2000103 | 6:2 FTS: 6 ng/L PFHxA: 3.7 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
4 facilities in Allen filed TRI reports for 2024, totalling 36k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| GATES CORP | IOLA | Zinc compounds, Certain glycol ethers | 25k lb |
| MONARCH CEMENT CO | HUMBOLDT | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Chromium | 6k lb |
| PRECISION INTERNATIONAL | IOLA | Nickel compounds | 5k lb |
| B & W CUSTOM TRUCK BEDS INC | HUMBOLDT | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 42 tank facilities in Allen: 26 tanks in service and 97 closed. 55 fuel releases are on record, of which 7 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Allen 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 Allen, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- CONCRETO SMELTERGAS
- FORMER UNITED ZINC & ASSOCIATED SMELTERSIOLA
- IMP BOATS INCIOLA