Dane County, WI
The federal environmental record for Dane County (population 575,347): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
5
Superfund NPL sites
15
federal cleanup sites
6
PFAS-detecting water systems
44
TRI facilities
63
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| City Disposal Corp. Landfill | Dunn | on the NPL | 09/21/1984 |
| Hagen Farm | Stoughton | on the NPL | 07/22/1987 |
| Madison Metropolitan Sewerage District Lagoons | Blooming Grove | on the NPL | 02/21/1990 |
| Refuse Hideaway Landfill | Middleton | on the NPL | 10/14/1992 |
| Stoughton City Landfill | Stoughton | on the NPL | 06/10/1986 |
Drinking water: PFAS testing
Public water systems serving Dane 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 |
|---|---|---|
| STOUGHTON WATERWORKS WI1130078 | PFHxS: 3.6 ng/L | detected |
| MADISON WATER UTILITY WI1130224 | PFBA: 46.5 ng/L PFHxS: 7.3 ng/L | detected |
| MCFARLAND WATERWORKS WI1130241 | PFHxS: 3.7 ng/L | detected |
| MONONA WATERWORKS WI1130245 | PFBA: 11 ng/L PFHxS: 5.4 ng/L PFBS: 5.3 ng/L | detected |
| MT HOREB WATERWORKS WI1130247 | PFPeA: 4.4 ng/L PFHxS: 3.3 ng/L | detected |
| VERONA WATERWORKS WI1130259 | PFBS: 3.5 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
44 facilities in Dane filed TRI reports for 2024, totalling 233k lb released. The 25 largest by volume:
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| MGE WEST CAMPUS COGENERATION FACILITY | MADISON | Ammonia | 42k lb |
| HYDRITE CHEMICAL CO. | COTTAGE GROVE | Toluene, Xylene (mixed isomers) | 36k lb |
| ZINKPOWER-STOUGHTON LLC | STOUGHTON | Zinc compounds, Lead | 29k lb |
| COATING PLACE INC | VERONA | Methanol | 25k lb |
| OESL AUTOMOTIVE USA LLC | SUN PRAIRIE | Zinc compounds, Lead compounds | 17k lb |
| WOLF APPLIANCE CO. LLC | FITCHBURG | Chromium, Manganese | 13k lb |
| SUB-ZERO INC. | FITCHBURG | Chromium, Manganese | 13k lb |
| PROMEGA CHAPPELLE MANUFACTURING CENTER | FITCHBURG | Methanol, Toluene | 11k lb |
| DANISCO USA INC | MADISON | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia | 7k lb |
| UNIROYAL GLOBAL ENGINEERED PRODUCTS LLC | STOUGHTON | Xylene (mixed isomers) | 6k lb |
| BERNTSEN BRASS & ALUMINUM FOUNDRY INC | MADISON | Zinc (fume or dust), Copper | 5k lb |
| AMCOR FLEXIBLES LLC | MADISON | Diisocyanates | 4k lb |
| BELL LABORATORIES INC WINDSOR | WINDSOR | Zinc compounds | 4k lb |
| FRANKLIN ELECTRIC FUELING SYSTEMS | DEFOREST | Styrene | 3k lb |
| AMERICAN PACKAGING CORP SITE | DEFOREST | Certain glycol ethers, Diisocyanates | 3k lb |
| TEKNI-PLEX FLEXIBLES LLC | MADISON | Toluene | 3k lb |
| CHR. HANSEN INC. | WINDSOR | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia | 2k lb |
| VENDURA INDUSTRIES LLC | MADISON | Styrene | 2k lb |
| FLINT HILLS RESOURCES PINE BEND LLC MCFARLAND TERMINAL | MC FARLAND | n-Hexane, Toluene | 2k lb |
| SPRINGS WINDOW FASHIONS LLC | MIDDLETON | Certain glycol ethers, Nickel | 2k lb |
| BELL LABORATORIES INC. | MADISON | Toluene, Methanol | 765 lb |
| HALLMAN LINDSAY PAINT | SUN PRAIRIE | Xylene (mixed isomers) | 630 lb |
| SAFC INC. | VERONA | Dichloromethane, Methanol | 459 lb |
| SAFC INC. | MADISON | Dichloromethane, Acetonitrile | 309 lb |
| THERMAL SPRAY TECHNOLOGIES INC | SUN PRAIRIE | Nickel, Chromium | 275 lb |
Underground fuel tanks
EPA's UST Finder records 1,833 tank facilities in Dane: 762 tanks in service and 4,096 closed. 1,330 fuel releases are on record, of which 63 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Dane 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 Dane, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- 1902 E. JOHNSON STREETMADISON
- 501 SOUTH PARK STREETMADISON
- BATTERY AND ELECTRONICS RECYCLING INC. SITEMT. HOREB
- CITY DISPOSAL CORP. LANDFILLOREGON
- HAGEN FARMSTOUGHTON
- HYDRITE CHEMICAL CO.COTTAGE GROVE
- MADISON METROPOLITAN SEWERAGE DISTRICTMADISON
- REFUSE HIDEAWAY LANDFILLMIDDLETON
- STOUGHTON CITY LANDFILLSTOUGHTON
- TIMBERLAKE TRAIL LAB SITE (DUPLICATE)MADISON
- TOWN OF MADISON/FISH HATCHERY ROADMADISON
- USDA USFS R09 FOREST PRODUCTS LABMADISON
- WAUNAKEE ALLOY CASTING CORPORATIONWAUNAKEE
- WI ORPHAN RADMADISON
- WILLIAM S. MIDDLETON MEMORIAL VA HOSPITALMADISON