Clean Water Act discharge permit · NPDES ILG580195
MILL SHOALS STW, Mill Shoals, IL: NPDES ILG580195 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
MILL SHOALS STW, held by MILL SHOALS, VILLAGE OF, holds NPDES permit ILG580195, which discharges to Unnamed Tributary Of Skillet Fork. EPA’s file records it issued July 30, 2014 and expiring June 30, 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 | MILL SHOALS STW |
|---|---|
| Permittee as filed | MILL SHOALS, VILLAGE OF |
| NPDES ID | ILG580195 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | July 30, 2014 |
| Expiration date | June 30, 2018 |
| Address | Mill Shoals, IL 62862 |
| Receiving water | UNNAMED TRIBUTARY OF SKILLET FORK |
| Subwatershed | Prairie Creek-Skillet Fork (HUC 051201150503) |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 9With a violation of any kind
- 2With 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 | 88 | 32 | November 30, 2020 | 225% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 70 | 30 | April 30, 2023 | 215% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 48 | 0 | ||
| pH | 2 | 20 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 12 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 8 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 7 | 0 | ||
| Chlorine, total residual | 1 | 6 | 0 | ||
| Coliform, fecal general | 1 | 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 ILG580195.
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 ILG580195 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.