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Clean Water Act discharge permit · NPDES ILR10ZDDH

OPUS 294, Alsip, IL: NPDES ILR10ZDDH discharge permit, effluent exceedances, inspections, penalties

OPUS 294, held by Opus Development Company, LLC., holds NPDES permit ILR10ZDDH. EPA’s file records it issued October 22, 2023 and expiring August 31, 2028. 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.

What the register holds for OPUS 294: its NPDES ID, its permit type and status, its dates, its address in Alsip, Illinois. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ILR10ZDDH.

Identity

Facility as filedOPUS 294
Permittee as filedOpus Development Company, LLC.
NPDES IDILR10ZDDH
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedOctober 22, 2023
Expiration dateAugust 31, 2028
Issuing agencyIEPA
AddressAlsip, IL 60803
Receiving water impaired303(D) Listed
SubwatershedCalumet Sag Channel (HUC 071200030403)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES ILR10ZDDH.

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 ILR10ZDDH.

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, ILR10ZDDH.

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  • One permit holder — $99/month
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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 ILR10ZDDH there.

Nearby on the register

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

What this page shows

In Alsip, 0.0% of the storm water construction permits carry a violation on file, and OPUS 294 belongs to that group of 5. The Calumet Sag Channel subwatershed holds 51 NPDES permits, including OPUS 294, and 40.0% of the 5 Alsip permits were issued before this permit.