Clean Water Act discharge permit · NPDES IL0048232
ST. CLAIR TOWNSHIP LINCOLNSHIRE STP, Belleville, IL: NPDES IL0048232 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 32Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
ST. CLAIR TOWNSHIP LINCOLNSHIRE STP, held by ST. CLAIR TOWNSHIP, holds NPDES permit IL0048232, which discharges to Loop Creek. EPA’s file records it issued February 21, 2020 and expiring February 28, 2025. 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 | ST. CLAIR TOWNSHIP LINCOLNSHIRE STP |
|---|---|
| Permittee as filed | ST. CLAIR TOWNSHIP |
| NPDES ID | IL0048232 |
| 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 | February 21, 2020 |
| Expiration date | February 28, 2025 |
| Address | Belleville, IL 62221 |
| Receiving water | LOOP CREEK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Loop Creek (HUC 071402040511) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 34Pollutants on file
- 32Under a numeric limit
- 34With a violation of any kind
- 4With 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 | 8 | 71 | 9 | May 31, 2008 | 1,300% over the limit |
| Nitrogen, ammonia total [as N] | 25 | 60 | 4 | September 30, 2012 | 300% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 19 | 1 | May 31, 2008 | 50% over the limit |
| Coliform, fecal general | 2 | 12 | 1 | October 31, 2011 | 150% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 64 | 0 | ||
| pH | 4 | 40 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 40 | 0 | ||
| Nitrogen, total [as N] | 1 | 22 | 0 | ||
| Chlorine, total residual | 3 | 20 | 0 | ||
| Oxygen, dissolved [DO] | 3 | 19 | 0 | ||
| Phosphorus, total [as P] | 6 | 14 | 0 | ||
| Flow, total | 2 | 9 | 0 | ||
| Zinc, total [as Zn] | 4 | 4 | 0 | ||
| Oil & Grease | 2 | 2 | 0 | ||
| Cyanide, total [as CN] | 2 | 2 | 0 | ||
| Fluoride, total [as F] | 2 | 2 | 0 | ||
| Arsenic, total [as As] | 2 | 2 | 0 | ||
| Barium, total [as Ba] | 2 | 2 | 0 | ||
| Cadmium, total [as Cd] | 2 | 2 | 0 | ||
| Chromium, hexavalent [as Cr] | 2 | 2 | 0 | ||
| Chromium, total [as Cr] | 2 | 2 | 0 | ||
| Copper, total [as Cu] | 2 | 2 | 0 | ||
| Iron, total [as Fe] | 2 | 2 | 0 | ||
| Iron, dissolved [as Fe] | 2 | 2 | 0 | ||
| Lead, total [as Pb] | 2 | 2 | 0 | ||
| Manganese, total [as Mn] | 2 | 2 | 0 | ||
| Nickel, total [as Ni] | 2 | 2 | 0 | ||
| Silver, total [as Ag] | 2 | 2 | 0 | ||
| Selenium, total [as Se] | 2 | 2 | 0 | ||
| Phenolics, total recoverable | 2 | 2 | 0 | ||
| Mercury, total [as Hg] | 2 | 2 | 0 | ||
| Pollutant table from 503.13 | 0 | 2 | 0 | ||
| Cyanide, free [amenable to chlorination] | 2 | 1 | 0 | ||
| Cyanide, weak acid, dissociable | 0 | 1 | 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 |
|---|---|---|
| April 5, 2025 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| April 5, 2025 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| April 5, 2025 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
| November 4, 2024 | 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 yet 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 IL0048232 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.