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Clean Water Act discharge permit · NPDES IL0020818

FOX METRO WRD STP, Aurora, IL: NPDES IL0020818 discharge permit, effluent exceedances, inspections, penalties

FOX METRO WRD STP, held by FOX METRO WATER RECLAMATION DISTRICT, holds NPDES permit IL0020818, which discharges to Fox River. EPA’s file records it issued June 1, 2015 and expiring May 31, 2018. 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 filedFOX METRO WRD STP
Permittee as filedFOX METRO WATER RECLAMATION DISTRICT
NPDES IDIL0020818
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
IssuedJune 1, 2015
Expiration dateMay 31, 2018
AddressAurora, IL 60543
Receiving waterFOX RIVER
Receiving water impaired303(D) Listed
SubwatershedMill Creek (HUC 071200070105)
Program components on fileBiosolids, CSO, POTW, Pretreatment
SIC4952 – Sewerage Systems
Other EPA IDs (FRS)RCRA handler ILR000046698; ICIS-AIR source IL000093015AAE

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

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
Chlorine, total residual21413November 30, 2019820% over the limit
Solids, total suspended61313August 31, 2013271% over the limit
Nitrogen, ammonia total [as N]14157July 31, 201333% over the limit
BOD, carbonaceous [5 day, 20 C]422March 31, 201040% over the limit
Nitrogen, total [as N]110
Flow110
Oxygen, dissolved [DO]500
Phosphorus, total [as P]400
Flow, in conduit or thru treatment plant400
Coliform, fecal general300
BOD, 5-day, 20 deg. C200
pH200
Oil & Grease200
Cyanide, weak acid, dissociable200
Cyanide, total [as CN]200
Fluoride, total [as F]200
Arsenic, total [as As]200
Barium, total [as Ba]200
Beryllium, total [as Be]200
Cadmium, total [as Cd]200
Chromium, hexavalent [as Cr]200
Chromium, total [as Cr]200
Copper, total [as Cu]200
Iron, total [as Fe]200
Iron, dissolved [as Fe]200
Lead, total [as Pb]200
Manganese, total [as Mn]200
Thallium, total [as Tl]200
Nickel, total [as Ni]200
Silver, total [as Ag]200
Zinc, total [as Zn]200
Antimony, total [as Sb]200
Selenium, total [as Se]200
Phenolics, total recoverable200
Mercury, total [as Hg]200
Temperature, water deg. fahrenheit100
Alkalinity, total [as CaCO3]100
Nitrogen, Kjeldahl, total [as N]100
Nitrite + Nitrate total [as N]100
Phosphorus, dissolved100
Coliform, fecal - % samples exceeding limit100
Overflows100

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
July 3, 2026Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
July 3, 2026Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
June 21, 2026Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environmentST6
December 6, 2025Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environmentST6
March 20, 2025Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangermentST6

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 IL0020818 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES IL0020818 for FOX METRO WRD STP in Aurora, IL, held by FOX METRO WATER RECLAMATION DISTRICT, which discharges to the FOX RIVER and is listed as administratively continued and a Major Discharger. The page lists 4 pollutants under a numeric limit and 4 pollutants with an effluent exceedance, and records the permit as issued June 1, 2015 and expiring May 31, 2018.