Clean Water Act discharge permit · NPDES IL0028061
MWRDGC CALUMET WRP, Chicago, IL: NPDES IL0028061 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 39Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
MWRDGC CALUMET WRP, held by METRO WATER RECLAMATION DISTRICT OF GREATER CHICAGO, holds NPDES permit IL0028061, which discharges to Little Calumet River. EPA’s file records it issued December 23, 2013 and expiring December 31, 2018. 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 filed | MWRDGC CALUMET WRP |
|---|---|
| Permittee as filed | METRO WATER RECLAMATION DISTRICT OF GREATER CHICAGO |
| NPDES ID | IL0028061 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | December 23, 2013 |
| Expiration date | December 31, 2018 |
| Address | Chicago, IL 60628 |
| Receiving water | LITTLE CALUMET RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Calumet River-Frontal Lake Michigan (HUC 040400010603) |
| Program components on file | Biosolids, CSO, POTW, Pretreatment |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler ILR000015206; ICIS-AIR source IL000031600DQO |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 40Pollutants on file
- 39Under a numeric limit
- 13With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 8 | 2 | 2 | May 31, 2023 | 380% over the limit |
| Carbon, tot organic [TOC] | 0 | 170 | 0 | ||
| Phosphorus, total [as P] | 1 | 32 | 0 | ||
| Chlorine, total residual | 3 | 13 | 0 | ||
| Nitrogen, total [as N] | 1 | 11 | 0 | ||
| Cyanide, weak acid, dissociable | 4 | 3 | 0 | ||
| Coliform, fecal general | 4 | 3 | 0 | ||
| Iron, dissolved [as Fe] | 4 | 2 | 0 | ||
| Cyanide, total [as CN] | 8 | 1 | 0 | ||
| BOD, 5-day, 20 deg. C | 5 | 1 | 0 | ||
| Oil & Grease | 4 | 1 | 0 | ||
| Chromium, total [as Cr] | 4 | 1 | 0 | ||
| Phenolics, total recoverable | 4 | 1 | 0 | ||
| Overflows | 11 | 0 | 0 | ||
| Solids, total suspended | 9 | 0 | 0 | ||
| Cadmium, total [as Cd] | 6 | 0 | 0 | ||
| pH | 4 | 0 | 0 | ||
| Fluoride, total [as F] | 4 | 0 | 0 | ||
| Arsenic, total [as As] | 4 | 0 | 0 | ||
| Barium, total [as Ba] | 4 | 0 | 0 | ||
| Beryllium, total [as Be] | 4 | 0 | 0 | ||
| Chromium, hexavalent [as Cr] | 4 | 0 | 0 | ||
| Copper, total [as Cu] | 4 | 0 | 0 | ||
| Iron, total [as Fe] | 4 | 0 | 0 | ||
| Lead, total [as Pb] | 4 | 0 | 0 | ||
| Manganese, total [as Mn] | 4 | 0 | 0 | ||
| Thallium, total [as Tl] | 4 | 0 | 0 | ||
| Nickel, total [as Ni] | 4 | 0 | 0 | ||
| Silver, total [as Ag] | 4 | 0 | 0 | ||
| Zinc, total [as Zn] | 4 | 0 | 0 | ||
| Antimony, total [as Sb] | 4 | 0 | 0 | ||
| Selenium, total [as Se] | 4 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| Mercury, total [as Hg] | 4 | 0 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 0 | 0 | ||
| Flow | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Coliform, fecal - % samples exceeding limit | 1 | 0 | 0 | ||
| Flow, total | 1 | 0 | 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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 27, 2026 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| June 24, 2026 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| January 8, 2026 | Wet-weather unanticipated prohibited bypass discharge to waters of the U.S. - endangerment | ST6 |
| April 2, 2025 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
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, IL0028061.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- 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 IL0028061 there.
Nearby on the register
- Discharge permits in Chicago
- Every permit record in Chicago, A to Z
- Discharge permits in Illinois
- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.