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Clean Water Act discharge permit · NPDES ILG840012

NORTHERN ILLINOIS SERVICE, Rockton, IL: NPDES ILG840012 discharge permit, effluent exceedances, inspections, penalties

NORTHERN ILLINOIS SERVICE holds NPDES permit ILG840012, which discharges to Pecatonica River. EPA’s file records it issued March 23, 2012 and expiring February 28, 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 filedNORTHERN ILLINOIS SERVICE
Permittee as filedNORTHERN ILLINOIS SERVICE
NPDES IDILG840012
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMarch 23, 2012
Expiration dateFebruary 28, 2017
AddressRockton, IL 61072
Receiving waterPECATONICA RIVER
SubwatershedCity of Rockton-Rock River (HUC 070900050104)
SIC1422 – Crushed And Broken Limestone

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 suspended2135November 30, 2025157% over the limit
pH291December 31, 2025
Flow, in conduit or thru treatment plant140
Offensive Conditions140

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 ILG840012.

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 ILG840012 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 NPDES permit ILG840012 held by NORTHERN ILLINOIS SERVICE in Rockton, IL, which discharges to the PECATONICA RIVER, with the permit shown as administratively continued and classed as a Minor Discharger. The page lists 4 pollutants on file, of which 2 are under a numeric limit and 2 have an effluent exceedance, with status and dates as EPA's permit file stood when loaded on October 14, 2026.