Linn County, IA
The federal environmental record for Linn County (population 228,972): 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
22
TRI facilities
31
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Electro-Coatings, Inc. | Cedar Rapids | deleted | 10/04/1989 |
Drinking water: PFAS testing
Public water systems serving Linn 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 |
|---|---|---|
| HIAWATHA WATER DEPT IA5735045 | PFBA: 5.4 ng/L PFHxS: 3.7 ng/L PFBS: 3.4 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
22 facilities in Linn filed TRI reports for 2024, totalling 3.1M lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| ADM CORN PROCESSING | CEDAR RAPIDS | Barium And Barium Compounds, Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1.4M lb |
| PRAIRIE CREEK GENERATING STATION | CEDAR RAPIDS | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)), Hydrogen fluoride | 355k lb |
| CARGILL INC | CEDAR RAPIDS | n-Hexane | 268k lb |
| PMX INDUSTRIES INC | CEDAR RAPIDS | Copper compounds, Zinc compounds | 267k lb |
| RED STAR YEAST CO LLC | CEDAR RAPIDS | Ammonia, Acetaldehyde | 260k lb |
| CARGILL INC. | CEDAR RAPIDS | n-Hexane | 199k lb |
| INTERNATIONAL PAPER CO CEDAR RIVER MILL | CEDAR RAPIDS | Methanol, Certain glycol ethers | 86k lb |
| CARGILL INC CORN MILLING | CEDAR RAPIDS | Propylene oxide, Acetaldehyde | 63k lb |
| DANISCO US INC | CEDAR RAPIDS | Ammonia, Manganese compounds | 50k lb |
| INGREDION INC | CEDAR RAPIDS | Acetaldehyde, Ethylene glycol | 29k lb |
| QUAKER MANUFACTURING LLC | CEDAR RAPIDS | Styrene | 19k lb |
| KLINGER PAINT CO INC | CEDAR RAPIDS | Xylene (mixed isomers), Toluene | 17k lb |
| DIAMOND V MILLS LLC SOUTH PLANT | CEDAR RAPIDS | Acetaldehyde, Formaldehyde | 12k lb |
| BIO SPRINGER N.A. CORP. | CEDAR RAPIDS | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Zinc compounds | 4k lb |
| ACTERRA GROUP LLC | MARION | Chromium, Nickel | 2k lb |
| BAE SYSTEMS & ELECTRONIC SYSTEMS INTEGRATION INC | CEDAR RAPIDS | Lead | 598 lb |
| HIGHWAY EQUIPMENT CO | CEDAR RAPIDS | Chromium, Nickel | 329 lb |
| ELECTRO-COATINGS OF IOWA INC. | CEDAR RAPIDS | Lead And Lead Compounds | 119 lb |
| ROCKWELL COLLINS INC -C AVENUE FACILITY | CEDAR RAPIDS | Lead | 22 lb |
| SCHNEIDER ELECTRIC USA INC | CEDAR RAPIDS | Copper, Silver | 14 lb |
| IOWA SPECIALTIES INC | CEDAR RAPIDS | Lead | 0 lb |
| J.E. ADAMS INDUSTRIES | CEDAR RAPIDS | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 606 tank facilities in Linn: 346 tanks in service and 1,408 closed. 314 fuel releases are on record, of which 31 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Linn as Zone 1, the highest predicted indoor radon levels (over 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 Linn, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- ELECTRO-COATINGS, INC.CEDAR RAPIDS
- KINGSGARD CLEANERSCEDAR RAPIDS
- RALSTONCEDAR RAPIDS
- U.S. NAMEPLATE CO.MOUNT VERNON