Clean Water Act discharge permit · NPDES IL0073610
LAWRENCE COUNTY STP, Sumner, IL: NPDES IL0073610 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
LAWRENCE COUNTY STP, held by LAWRENCE COUNTY, holds NPDES permit IL0073610, which discharges to Unnamed Trib Of Shirley Creek. EPA’s file records it issued April 25, 2019 and expiring March 31, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | LAWRENCE COUNTY STP |
|---|---|
| Permittee as filed | LAWRENCE COUNTY |
| NPDES ID | IL0073610 |
| 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 | April 25, 2019 |
| Expiration date | March 31, 2024 |
| Address | Sumner, IL 62466 |
| Receiving water | UNNAMED TRIB OF SHIRLEY CREEK |
| Subwatershed | Shirley Creek-Mud River (HUC 051201121303) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 9With a violation of any kind
- 3With 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 | 5 | 59 | 28 | September 30, 2011 | 717% over the limit |
| Nitrogen, ammonia total [as N] | 20 | 42 | 14 | November 30, 2022 | 300% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 31 | 7 | October 31, 2001 | 690% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 25 | 0 | ||
| pH | 2 | 12 | 0 | ||
| Chlorine, total residual | 1 | 8 | 0 | ||
| Oxygen, dissolved [DO] | 5 | 7 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 7 | 0 | ||
| Coliform, fecal general | 1 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 9, 2025 | Dry-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
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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 IL0073610 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.