Clean Water Act discharge permit · NPDES IL0077305
LOCKPORT POWERHOUSE, Lockport, IL: NPDES IL0077305 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 3Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
LOCKPORT POWERHOUSE, held by METROPOLITAN WRD OF GREATER CHICAGO, holds NPDES permit IL0077305, which discharges to Chicago Sanitary And Ship Canal. EPA’s file records it issued August 22, 2018 and expiring August 31, 2023. 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 filed | LOCKPORT POWERHOUSE |
|---|---|
| Permittee as filed | METROPOLITAN WRD OF GREATER CHICAGO |
| NPDES ID | IL0077305 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 22, 2018 |
| Expiration date | August 31, 2023 |
| Address | Lockport, IL 60441 |
| Receiving water | CHICAGO SANITARY AND SHIP CANAL |
| Subwatershed | Goose Lake-Des Plaines River (HUC 071200040706) |
| Other EPA IDs (FRS) | RCRA handler ILR000166074 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 4Pollutants on file
- 3Under a numeric limit
- 4With a violation of any kind
- 1With an effluent exceedance
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 measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 0 | 34 | 34 | April 30, 2012 | 487% over the limit |
| Oil & Grease | 2 | 14 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 8 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 4 | 0 |
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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0077305.
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, IL0077305.
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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 IL0077305 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.