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Clean Water Act discharge permit · NPDES IL0036757

VIENNA CORRECTIONAL CENTER STP, Vienna, IL: NPDES IL0036757 discharge permit, effluent exceedances, inspections, penalties

VIENNA CORRECTIONAL CENTER STP, held by ILLINOIS DEPARTMENT OF CORRECTIONS, holds NPDES permit IL0036757, which discharges to Unnamed Trib To Bay Creek. EPA’s file records it issued March 25, 2021 and expiring March 31, 2026. 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 filedVIENNA CORRECTIONAL CENTER STP
Permittee as filedILLINOIS DEPARTMENT OF CORRECTIONS
NPDES IDIL0036757
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMarch 25, 2021
Expiration dateMarch 31, 2026
AddressVienna, IL 62995
Receiving waterUNNAMED TRIB TO BAY CREEK
SubwatershedJohnson Creek-Bay Creek (HUC 051402030805)

Cited to the EPA ICIS-NPDES permit file (ECHO 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
Nitrogen, ammonia total [as N]14684302October 31, 2024767% over the limit
Solids, total suspended5710212January 31, 2025342% over the limit
pH2333141September 30, 2024
Oxygen, dissolved [DO]522234August 31, 202590% over the limit
BOD, carbonaceous [5 day, 20 C]443018August 31, 202461% over the limit
Flow, in conduit or thru treatment plant44220
Chlorine, total residual11070
BOD, 5-day, 20 deg. C11050
Coliform, fecal general1410

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0036757.

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.

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, IL0036757.

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  • One state — $4,990/year
  • The whole register — $18,000/year

How we handle your data → Privacy

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 IL0036757 there.

Nearby on the register

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