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Clean Water Act discharge permit · NPDES ILG580005

PRAIRIE DU ROCHER, VILLAGE OF, Prairie Du Rocher, IL: NPDES ILG580005 discharge permit, effluent exceedances, inspections, penalties

PRAIRIE DU ROCHER, VILLAGE OF holds NPDES permit ILG580005, which discharges to Unnamed Tributary Of Prairie Du Rocher Creek. EPA’s file records it issued October 28, 2014 and expiring June 30, 2018. 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 filedPRAIRIE DU ROCHER, VILLAGE OF
Permittee as filedPRAIRIE DU ROCHER, VILLAGE OF
NPDES IDILG580005
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedOctober 28, 2014
Expiration dateJune 30, 2018
AddressPrairie Du Rocher, IL 62277
Receiving waterUNNAMED TRIBUTARY OF PRAIRIE DU ROCHER CREEK
Receiving water impaired303(D) Listed
SubwatershedLong Creek-Verdigris River (HUC 110701010106)

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
Solids, total suspended517145March 31, 2017132% over the limit
BOD, carbonaceous [5 day, 20 C]41128April 30, 200788% over the limit
pH2562July 31, 2001
Oxygen, dissolved [DO]1151March 31, 201650% over the limit
Flow, in conduit or thru treatment plant41060
BOD, 5-day, 20 deg. C1260
Chlorine, total residual1220
Nitrogen, ammonia total [as N]1150
Coliform, fecal general160

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 ILG580005.

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, ILG580005.

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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 ILG580005 there.

Nearby on the register

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