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Clean Water Act discharge permit · NPDES IL0074373

PLAINFIELD NORTH STP, VILLAGE OF, Plainfield, IL: NPDES IL0074373 discharge permit, effluent exceedances, inspections, penalties

PLAINFIELD NORTH STP, VILLAGE OF, held by PLAINFIELD, VILLAGE OF, holds NPDES permit IL0074373, which discharges to Dupage River-Des Plaines River. EPA’s file records it issued April 30, 2012 and expiring April 30, 2017. 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 filedPLAINFIELD NORTH STP, VILLAGE OF
Permittee as filedPLAINFIELD, VILLAGE OF
NPDES IDIL0074373
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
IssuedApril 30, 2012
Expiration dateApril 30, 2017
AddressPlainfield, IL 60544
Receiving waterDUPAGE RIVER-DES PLAINES RIVER
Receiving water impaired303(D) Listed
SubwatershedMiddle Du Page River (HUC 071200040808)
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
Solids, total suspended51010June 30, 200879% over the limit
Nitrogen, ammonia total [as N]1473February 28, 201193% over the limit
Coliform, fecal general133July 31, 20171,900% over the limit
Phosphorus, total [as P]252June 30, 201160% over the limit
BOD, carbonaceous [5 day, 20 C]451March 31, 20072% over the limit
Flow, in conduit or thru treatment plant460
Oil & Grease010
Cyanide, weak acid, dissociable010
Cyanide, total [as CN]010
Fluoride, total [as F]010
Arsenic, total [as As]010
Barium, total [as Ba]010
Cadmium, total [as Cd]010
Chromium, hexavalent [as Cr]010
Chromium, total [as Cr]010
Copper, total [as Cu]010
Iron, total [as Fe]010
Iron, dissolved [as Fe]010
Lead, total [as Pb]010
Manganese, total [as Mn]010
Nickel, total [as Ni]010
Silver, total [as Ag]010
Zinc, total [as Zn]010
Selenium, total [as Se]010
Phenolics, total recoverable010
Mercury, total [as Hg]010
Oxygen, dissolved [DO]500
pH200
BOD, 5-day, 20 deg. C100
Nitrogen, total [as N]100
Chlorine, total residual100

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 IL0074373.

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 IL0074373 for the PLAINFIELD NORTH STP, VILLAGE OF in Plainfield, IL, held by PLAINFIELD, VILLAGE OF, with a discharge to the DUPAGE RIVER-DES PLAINES RIVER. The permit is classed as a Major Discharger and is administratively continued, with 5 pollutants under a numeric limit and 11 pollutants with an effluent exceedance on file.