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Clean Water Act discharge permit · NPDES IL0024473

AQUA ILLINOIS - UNIVERSITY PARK WWTF, University Park, IL: NPDES IL0024473 discharge permit, effluent exceedances, inspections, penalties

AQUA ILLINOIS - UNIVERSITY PARK WWTF, held by AQUA ILLINOIS, INC., holds NPDES permit IL0024473, which discharges to Deer Creek. EPA’s file records it issued October 29, 2015 and expiring October 31, 2020. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedAQUA ILLINOIS - UNIVERSITY PARK WWTF
Permittee as filedAQUA ILLINOIS, INC.
NPDES IDIL0024473
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial pretreatment
IssuedOctober 29, 2015
Expiration dateOctober 31, 2020
AddressUniversity Park, IL 60466
Receiving waterDEER CREEK
Receiving water impaired303(D) Listed
SubwatershedDeer Creek (HUC 071200030201)

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]144226May 31, 2024750% over the limit
Zinc, total [as Zn]51814September 30, 2024137% over the limit
Chloride [as Cl]21411January 31, 202349% over the limit
Solids, total suspended5159July 31, 2022244% over the limit
Phosphorus, total [as P]2118October 31, 202493% over the limit
Solids, total dissolved095October 31, 2013287% over the limit
BOD, carbonaceous [5 day, 20 C]4464July 31, 2022185% over the limit
Nickel, total [as Ni]573April 30, 202179% over the limit
Coliform, fecal general172July 31, 20221,711% over the limit
Flow, in conduit or thru treatment plant460
pH220
Cyanide, total [as CN]220
Cyanide, weak acid, dissociable020
Oxygen, dissolved [DO]510
Oil & Grease210
Fluoride, total [as F]210
Arsenic, total [as As]210
Barium, total [as Ba]210
Cadmium, total [as Cd]210
Chromium, hexavalent [as Cr]210
Chromium, total [as Cr]210
Copper, total [as Cu]210
Iron, total [as Fe]210
Iron, dissolved [as Fe]210
Lead, total [as Pb]210
Manganese, total [as Mn]210
Silver, total [as Ag]210
Selenium, total [as Se]210
Phenolics, total recoverable210
Mercury, total [as Hg]210
BOD, 5-day, 20 deg. C110
Chlorine, total residual110
Cyanide, free [amenable to chlorination]200
Nitrogen, total [as N]100

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
August 25, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
August 19, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
June 22, 2026Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
June 13, 2026Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
May 7, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
April 20, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
March 11, 2026Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
March 10, 2026Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
March 6, 2026Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
March 6, 2026Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
February 8, 2026Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environmentST6
February 4, 2025Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
January 29, 2025Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
November 26, 2024Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
November 7, 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.

Watch this permit

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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 IL0024473 there.

Nearby on the register

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