Clean Water Act discharge permit · NPDES IL0021806
SULLIVAN STP, Sullivan, IL: NPDES IL0021806 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
SULLIVAN STP, held by SULLIVAN, CITY OF, holds NPDES permit IL0021806, which discharges to Asa Creek. EPA’s file records it issued February 26, 2016 and expiring February 28, 2021. 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 | SULLIVAN STP |
|---|---|
| Permittee as filed | SULLIVAN, CITY OF |
| NPDES ID | IL0021806 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | February 26, 2016 |
| Expiration date | February 28, 2021 |
| Address | Sullivan, IL 61951 |
| Receiving water | ASA CREEK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Asa Creek-Lake Shelbyville (HUC 071402010701) |
| Program components on file | Biosolids, POTW, Pretreatment |
| 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
- 13Pollutants on file
- 12Under a numeric limit
- 13With a violation of any kind
- 10With 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 |
|---|---|---|---|---|---|
| Phosphorus, total [as P] | 5 | 206 | 45 | May 31, 2026 | 162% over the limit |
| Nitrogen, ammonia total [as N] | 16 | 243 | 30 | May 31, 2026 | 569% over the limit |
| Coliform, fecal general | 3 | 79 | 8 | May 31, 2026 | 99,999% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 134 | 6 | February 29, 2024 | 800% over the limit |
| Solids, total suspended | 8 | 255 | 5 | April 30, 2026 | 57% over the limit |
| pH | 6 | 188 | 3 | July 31, 2015 | |
| BOD, 5-day, 20 deg. C | 4 | 120 | 2 | March 31, 2020 | 63% over the limit |
| Chlorine, total residual | 3 | 93 | 2 | June 30, 2024 | 320% over the limit |
| Oxygen, dissolved [DO] | 5 | 85 | 1 | April 30, 2026 | 5% over the limit |
| Coliform, fecal - % samples exceeding limit | 0 | 1 | 1 | May 31, 2026 | 25% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 128 | 0 | ||
| Flow, total | 2 | 59 | 0 | ||
| Nitrogen, total [as N] | 1 | 35 | 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 IL0021806.
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, IL0021806.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 IL0021806 there.
Nearby on the register
- Discharge permits in Sullivan
- Every permit record in Sullivan, A to Z
- Discharge permits in Illinois
- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.