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Clean Water Act discharge permit · NPDES IL0031526

URBANA-CHAMPAIGN SD - SOUTHWEST STP, Champaign, IL: NPDES IL0031526 discharge permit, effluent exceedances, inspections, penalties

URBANA-CHAMPAIGN SD - SOUTHWEST STP, held by URBANA-CHAMPAIGN SANITARY DISTRICT, holds NPDES permit IL0031526, which discharges to Copper Slough. EPA’s file records it issued October 28, 2011 and expiring November 30, 2016. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedURBANA-CHAMPAIGN SD - SOUTHWEST STP
Permittee as filedURBANA-CHAMPAIGN SANITARY DISTRICT
NPDES IDIL0031526
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedOctober 28, 2011
Expiration dateNovember 30, 2016
AddressChampaign, IL 61822
Receiving waterCOPPER SLOUGH
SubwatershedCopper Slough (HUC 071402010201)
Program components on fileBiosolids, POTW, Pretreatment
SIC4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Coliform, fecal general33119December 31, 200997,400% over the limit
Phosphorus, total [as P]42416October 31, 2008195% over the limit
Solids, total suspended62313December 31, 2018775% over the limit
Nitrogen, ammonia total [as N]54106March 31, 2026133% over the limit
Coliform, fecal - % samples exceeding limit154April 30, 2013900% over the limit
Chlorine, total residual2233April 30, 201727% over the limit
BOD, carbonaceous [5 day, 20 C]491May 31, 200475% over the limit
BOD, 5-day, 20 deg. C271April 30, 201713% over the limit
pH4120
Oxygen, dissolved [DO]170
Nitrogen, total [as N]170
Flow, in conduit or thru treatment plant440
Flow, total110

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

DateWhat EPA recordedAgency
December 19, 2024Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6

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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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

This public-records page covers NPDES permit IL0031526 for URBANA-CHAMPAIGN SD - SOUTHWEST STP in Champaign, IL, held by URBANA-CHAMPAIGN SANITARY DISTRICT, with its status listed as administratively continued and its discharger class as Major. The page lists 13 for discharger class, 8 pollutants under a numeric limit, and 8 pollutants with an effluent exceedance.