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States / Wisconsin

St. Croix County, WI

The federal environmental record for St. Croix County (population 96,763): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.

0

Superfund NPL sites

7

federal cleanup sites

2

PFAS-detecting water systems

5

TRI facilities

2

open tank releases

Drinking water: PFAS testing

Public water systems serving St. Croix 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.

SystemHighest resultsReading
HUDSON WATERWORKS

WI6560087

PFBA: 32 ng/L

detected
NEW RICHMOND WATERWORKS

WI6560126

PFBA: 6.4 ng/L

detected

On a system with detections? Testing and treatment options

Facilities reporting toxic releases (2024)

5 facilities in St. Croix filed TRI reports for 2024, totalling 10 lb released.

FacilityCityTop chemicalsTotal released
GEAHUDSONChromium, Nickel10 lb
PHILLIPS MEDISIZE ST. CROIX MEADOWSHUDSON-0 lb
CADY CHEESE LLCWILSON-0 lb
CRM - NEW RICHMONDNEW RICHMONDLead0 lb
ROBERTS CONCRETE PRODUCTSROBERTSLead0 lb

Underground fuel tanks

EPA's UST Finder records 349 tank facilities in St. Croix: 211 tanks in service and 701 closed. 199 fuel releases are on record, of which 2 remain open. Open releases are cleanups that have not reached "no further action".

Radon

EPA maps St. Croix 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 - $39

All federal cleanup sites on file

The wider Superfund enterprise inventory (SEMS) for St. Croix, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.

  • BALDWIN BATTERY SITEBALDWIN
  • JUNKERS LDFLHUDSON
  • NEW RICHMOND LANDFILLNEW RICHMOND
  • ROSEN METAL INC/PHOENIX METALSBALDWIN
  • SEVERSEN SALVAGECADY
  • ST. CROIX RIVER TCE PLUMESONO JUNCTION
  • US FISH AND WILDLIFENEW RICHMOND