Clean Water Act discharge permit · NPDES WI0045756

UNITED STATES GEOLOGICAL SURVEY, La Crosse, WI: NPDES WI0045756 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
8Pollutants under a numeric limit
2Pollutants with an effluent exceedance

UNITED STATES GEOLOGICAL SURVEY, held by Ecosystems Mission Area, UMESC, holds NPDES permit WI0045756, which discharges to Black R Via Back. EPA’s file records it issued September 27, 2012 and expiring September 30, 2017. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	UNITED STATES GEOLOGICAL SURVEY
Permittee as filed	Ecosystems Mission Area, UMESC
NPDES ID	WI0045756
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	September 27, 2012
Expiration date	September 30, 2017
Address	La Crosse, WI 54603
Receiving water	BLACK R VIA BACK
Receiving water impaired	303(D) Listed
Subwatershed	City of La Crosse-Mississippi River (HUC 070400060502)
Other EPA IDs (FRS)	RCRA handler WI1143509205

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

8Pollutants on file
8Under a numeric limit
8With a violation of any kind
2With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
pH	3	16	2	January 31, 2025
Solids, total suspended	4	51	1	October 31, 2025	10% over the limit
Chlorine, total residual	2	69	0
Flow, in conduit or thru treatment plant	6	50	0
BOD, 5-day, 20 deg. C	4	50	0
Nitrogen, ammonia total [as N]	2	16	0
Phosphorus, total [as P]	2	7	0
Oxygen, dissolved [DO]	1	1	0

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES WI0045756.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID WI0045756 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES WI0045756 held by the United States Geological Survey in La Crosse, WI, with a permit status of administratively continued and a Minor discharger class of 8. The facts list 2 pollutants under a numeric limit and 2 pollutants with an effluent exceedance.