Clean Water Act discharge permit · NPDES IL0023612
CLINTON SD STP, Clinton, IL: NPDES IL0023612 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 22Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
CLINTON SD STP, held by CLINTON SANITARY DISTRICT, holds NPDES permit IL0023612, which discharges to Coon Ck-Salt Ck-Sangamon River. EPA’s file records it issued June 28, 2011 and expiring July 31, 2016. 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 | CLINTON SD STP |
|---|---|
| Permittee as filed | CLINTON SANITARY DISTRICT |
| NPDES ID | IL0023612 |
| 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 | June 28, 2011 |
| Expiration date | July 31, 2016 |
| Address | Clinton, IL 61727 |
| Receiving water | COON CK-SALT CK-SANGAMON RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Coon Creek (HUC 071300090401) |
| Program components on file | Biosolids, CSO, POTW |
| 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
- 40Pollutants on file
- 22Under a numeric limit
- 32With a violation of any kind
- 9With 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 |
|---|---|---|---|---|---|
| Copper, total [as Cu] | 4 | 224 | 184 | June 30, 2026 | 1,953% over the limit |
| Fluoride, total [as F] | 0 | 13 | 11 | November 30, 2007 | 29% over the limit |
| Nitrogen, ammonia total [as N] | 50 | 59 | 3 | July 31, 2025 | 337% over the limit |
| Oxygen, dissolved [DO] | 5 | 39 | 3 | July 31, 2025 | 18% over the limit |
| Silver, total [as Ag] | 0 | 5 | 3 | December 31, 2000 | 1,900% over the limit |
| BOD, 5-day, 20 deg. C | 5 | 42 | 2 | July 31, 2025 | 200% over the limit |
| Mercury, total [as Hg] | 2 | 8 | 2 | September 30, 2013 | 25,466,566% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 61 | 1 | September 30, 2023 | 13% over the limit |
| Coliform, fecal general | 2 | 19 | 1 | July 31, 2025 | 67,900% over the limit |
| Solids, total suspended | 9 | 68 | 0 | ||
| Phosphorus, total [as P] | 2 | 48 | 0 | ||
| pH | 6 | 44 | 0 | ||
| Chlorine, total residual | 3 | 25 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 22 | 0 | ||
| Flow, total | 2 | 19 | 0 | ||
| Nitrogen, total [as N] | 2 | 12 | 0 | ||
| Oil & Grease | 0 | 2 | 0 | ||
| Cyanide, total [as CN] | 0 | 2 | 0 | ||
| Cyanide, free [amenable to chlorination] | 0 | 2 | 0 | ||
| Arsenic, total [as As] | 0 | 2 | 0 | ||
| Barium, total [as Ba] | 0 | 2 | 0 | ||
| Cadmium, total [as Cd] | 0 | 2 | 0 | ||
| Chromium, hexavalent [as Cr] | 0 | 2 | 0 | ||
| Chromium, total [as Cr] | 0 | 2 | 0 | ||
| Iron, total [as Fe] | 0 | 2 | 0 | ||
| Iron, dissolved [as Fe] | 0 | 2 | 0 | ||
| Lead, total [as Pb] | 0 | 2 | 0 | ||
| Manganese, total [as Mn] | 0 | 2 | 0 | ||
| Nickel, total [as Ni] | 0 | 2 | 0 | ||
| Zinc, total [as Zn] | 0 | 2 | 0 | ||
| Selenium, total [as Se] | 0 | 2 | 0 | ||
| Phenolics, total recoverable | 0 | 2 | 0 | ||
| Flow | 2 | 0 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 0 | 0 | ||
| Annual amt of sludge incinerated | 1 | 0 | 0 | ||
| Annual sludge production, total | 1 | 0 | 0 | ||
| Annual amount of sludge land applied | 1 | 0 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 0 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 0 | 0 | ||
| Annual amt sludge transported interstate | 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 IL0023612.
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.
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Nearby on the register
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- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.