Dubuque County, IA
The federal environmental record for Dubuque County (population 98,887): 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
15
TRI facilities
25
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Peoples Natural Gas Co. | Dubuque | on the NPL | 08/30/1990 |
Drinking water: PFAS testing
Public water systems serving Dubuque 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 |
|---|---|---|
| DUBUQUE WATER WORKS IA3126052 | PFBA: 13 ng/L PFOA: 5.1 ng/L | above final limit |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
15 facilities in Dubuque filed TRI reports for 2024, totalling 39k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| JOHN DEERE DUBUQUE WORKS | DUBUQUE | n-Butyl alcohol, Manganese | 19k lb |
| EAGLE WINDOW & DOOR INC | DUBUQUE | Xylene (mixed isomers) | 10k lb |
| WESTERN DUBUQUE BIODIESEL LLC | FARLEY | Methanol | 3k lb |
| PRAIRIE FARMS | DUBUQUE | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 3k lb |
| AY MCDONALD MANUFACTURING CO | DUBUQUE | Copper, Lead And Lead Compounds | 2k lb |
| BP PRODUCTS NA INC DUBUQUE TERMINAL | PEOSTA | Xylene (mixed isomers), Toluene | 2k lb |
| MORRISON BROTHERS CO | DUBUQUE | Copper, Lead | 16 lb |
| FLINT HILLS RESOURCES PINE BEND LLC DUBUQUE | DUBUQUE | Polycyclic aromatic compounds, Lead | 15 lb |
| MODERNFOLD INC. | DYERSVILLE | Lead | 10 lb |
| GIESE MANUFACTURING | DUBUQUE | Manganese, Chromium | 7 lb |
| ADAMS CO | DUBUQUE | - | 0 lb |
| DYERSVILLE DIE CAST | DYERSVILLE | - | 0 lb |
| RIE COATINGS LLC | DUBUQUE | - | 0 lb |
| EAST IOWA MACHINE CO (EIMCO) | FARLEY | - | 0 lb |
| JOSEPH L. ERTL INC. DBA SCALE MODELS & DYERSVILLE DIE CAST | FARLEY | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 346 tank facilities in Dubuque: 205 tanks in service and 766 closed. 156 fuel releases are on record, of which 25 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Dubuque 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 Dubuque, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- DUBUQUE U S ARMY RESERVE CENTERDUBUQUE
- JOHN DEERE DUBUQUE WORKS PCSDUBUQUE
- PEOPLES NATURAL GAS CO.DUBUQUE