Clean Water Act discharge permit · NPDES IL0027871
CARBONDALE NORTHWEST STP, CITY OF, Carbondale, IL: NPDES IL0027871 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 31Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
CARBONDALE NORTHWEST STP, CITY OF, held by CARBONDALE, CITY OF, holds NPDES permit IL0027871, which discharges to Big Muddy River. EPA’s file records it issued November 16, 2010 and expiring October 31, 2015. 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 | CARBONDALE NORTHWEST STP, CITY OF |
|---|---|
| Permittee as filed | CARBONDALE, CITY OF |
| NPDES ID | IL0027871 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | November 16, 2010 |
| Expiration date | October 31, 2015 |
| Address | Carbondale, IL 62901 |
| Receiving water | BIG MUDDY RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Mud Creek-Big Muddy River (HUC 071401061201) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 31Pollutants on file
- 31Under a numeric limit
- 12With a violation of any kind
- 6With 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] | 30 | 20 | 12 | June 30, 2025 | 183% over the limit |
| Coliform, fecal general | 1 | 9 | 9 | May 31, 2026 | 2,925% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 11 | 3 | June 30, 2024 | 74% over the limit |
| Solids, total suspended | 5 | 12 | 2 | June 30, 2024 | 113% over the limit |
| Chlorine, total residual | 4 | 10 | 2 | July 31, 2024 | 3,900% over the limit |
| Oxygen, dissolved [DO] | 5 | 8 | 2 | June 30, 2024 | 74% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 8 | 0 | ||
| pH | 2 | 4 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 2 | 0 | ||
| Nitrogen, total [as N] | 1 | 2 | 0 | ||
| Phosphorus, total [as P] | 1 | 2 | 0 | ||
| Chromium, hexavalent [as Cr] | 1 | 1 | 0 | ||
| Oil & Grease | 1 | 0 | 0 | ||
| Cyanide, weak acid, dissociable | 1 | 0 | 0 | ||
| Cyanide, total [as CN] | 1 | 0 | 0 | ||
| Fluoride, total [as F] | 1 | 0 | 0 | ||
| Arsenic, total [as As] | 1 | 0 | 0 | ||
| Barium, total [as Ba] | 1 | 0 | 0 | ||
| Cadmium, total [as Cd] | 1 | 0 | 0 | ||
| Chromium, total [as Cr] | 1 | 0 | 0 | ||
| Copper, total [as Cu] | 1 | 0 | 0 | ||
| Iron, total [as Fe] | 1 | 0 | 0 | ||
| Iron, dissolved [as Fe] | 1 | 0 | 0 | ||
| Lead, total [as Pb] | 1 | 0 | 0 | ||
| Manganese, total [as Mn] | 1 | 0 | 0 | ||
| Nickel, total [as Ni] | 1 | 0 | 0 | ||
| Silver, total [as Ag] | 1 | 0 | 0 | ||
| Zinc, total [as Zn] | 1 | 0 | 0 | ||
| Selenium, total [as Se] | 1 | 0 | 0 | ||
| Phenolics, total recoverable | 1 | 0 | 0 | ||
| Mercury, total [as Hg] | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0027871.
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, IL0027871.
Start the watch
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- One watershed — $2,990/year
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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 IL0027871 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.