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Clean Water Act discharge permit · NPDES WIG009431

MAYO CLINIC HEALTH SYSTEM SITE, La Crosse, WI: NPDES WIG009431 discharge permit, effluent exceedances, inspections, penalties

MAYO CLINIC HEALTH SYSTEM SITE, held by Mayo Clinic Health System Site, holds NPDES permit WIG009431. EPA’s file records it issued October 1, 2021 and expiring September 30, 2026.

MAYO CLINIC HEALTH SYSTEM SITE, La Crosse, Wisconsin: Coverage under a general permit WIG009431, held by Mayo Clinic Health System Site; Effective; issued October 1, 2021, term to September 30, 2026.

MAYO CLINIC HEALTH SYSTEM SITE among its neighbors

EPA’s permit file holds 21 discharge permits in the City of La Crosse-Mississippi River subwatershed (HUC 070400060502), WIG009431 among them. Its county holds 108, 1 of them major permits; WIG009431 is a minor permit.

Other permits in the City of La Crosse-Mississippi River subwatershed (HUC 070400060502)

What the register holds for MAYO CLINIC HEALTH SYSTEM SITE: its NPDES ID, its permit type and status, its dates, its address in La Crosse, Wisconsin. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES WIG009431.

Identity

Facility as filedMAYO CLINIC HEALTH SYSTEM SITE
Permittee as filedMayo Clinic Health System Site
NPDES IDWIG009431
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedOctober 1, 2021
Expiration dateSeptember 30, 2026
AddressLa Crosse, WI 54601
Receiving water impaired303(D) Listed
SubwatershedCity of La Crosse-Mississippi River (HUC 070400060502)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES WIG009431.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES WIG009431.

Inspections

EPA’s inspection file holds no inspection for NPDES WIG009431.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES WIG009431.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, WIG009431.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

Of La Crosse County's 93 general permit coverages, 0.0% have a violation on file, and MAYO CLINIC HEALTH SYSTEM SITE is counted in that group. The City of La Crosse-Mississippi River subwatershed holds 20 NPDES permits, MAYO CLINIC HEALTH SYSTEM SITE included. Of all 93 general permit coverages in La Crosse County, 0.0% were issued before this permit.