Eau Claire County, WI
The federal environmental record for Eau Claire County (population 107,903): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
2
Superfund NPL sites
2
federal cleanup sites
1
PFAS-detecting water systems
12
TRI facilities
9
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Eau Claire Municipal Well Field | Eau Claire | deleted | 09/21/1984 |
| Waste Research & Reclamation Co. | Eau Claire | deleted | 09/21/1984 |
Drinking water: PFAS testing
Public water systems serving Eau Claire 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 |
|---|---|---|
| EAU CLAIRE WATERWORKS WI6180230 | PFHxS: 11 ng/L PFBS: 3 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
12 facilities in Eau Claire filed TRI reports for 2024, totalling 57k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| AMERICAN PHOENIX INC. | EAU CLAIRE | Zinc compounds, Antimony And Antimony Compounds | 26k lb |
| WRR ENVIRONMENTAL SERVICES CO INC | EAU CLAIRE | Barium And Barium Compounds, Methanol | 21k lb |
| CASCADES TISSUE GROUP - WISCON SIN INC. | EAU CLAIRE | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia | 8k lb |
| MIDWEST MANUFACTURING TREATING PLANT | EAU CLAIRE | Copper And Copper Compounds | 2k lb |
| PERRIGO WI | EAU CLAIRE | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 351 lb |
| LIPPERT | EAU CLAIRE | Manganese, Nickel | 275 lb |
| VERITAS STEEL | EAU CLAIRE | Chromium, Nickel | 110 lb |
| WOOD ECOLOGY INC. | EAU CLAIRE | Lead | 1 lb |
| EAU CLAIRE CO-OPERATIVE OIL CO | EAU CLAIRE | Diisocyanates | 0 lb |
| AMERICAN MATERIALS - EAU CLAIRE | EAU CLAIRE | Lead | 0 lb |
| NESTLE HEALTH SCIENCE | EAU CLAIRE | - | 0 lb |
| MIDWEST MANUFACTURING PREHUNG PLANT | EAU CLAIRE | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 461 tank facilities in Eau Claire: 215 tanks in service and 1,012 closed. 271 fuel releases are on record, of which 9 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Eau Claire 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 Eau Claire, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- EAU CLAIRE MUNICIPAL WELL FIELDEAU CLAIRE
- WASTE RESEARCH & RECLAMATION CO.EAU CLAIRE