Clean Water Act discharge permit · NPDES IL0020541
SAVANNA STP, CITY OF, Savanna, IL: NPDES IL0020541 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
SAVANNA STP, CITY OF, held by SAVANNA, CITY OF, holds NPDES permit IL0020541, which discharges to Mississippi River. EPA’s file records it issued May 25, 2018 and expiring May 31, 2023. 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 | SAVANNA STP, CITY OF |
|---|---|
| Permittee as filed | SAVANNA, CITY OF |
| NPDES ID | IL0020541 |
| 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 | May 25, 2018 |
| Expiration date | May 31, 2023 |
| Address | Savanna, IL 61074 |
| Receiving water | MISSISSIPPI RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Beaver Creek-Mississippi River (HUC 070600051201) |
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
- 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 |
|---|---|---|---|---|---|
| Coliform, fecal general | 3 | 123 | 54 | May 31, 2019 | 99,999% over the limit |
| Solids, total suspended | 7 | 417 | 25 | June 30, 2014 | 93% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 323 | 15 | February 28, 2011 | 148% over the limit |
| Chlorine, total residual | 1 | 93 | 14 | February 28, 2015 | 33,220% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 324 | 0 | ||
| pH | 2 | 157 | 0 | ||
| BOD, 5-day, 20 deg. C | 3 | 91 | 0 | ||
| Flow | 2 | 10 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 5 | 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 IL0020541.
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 IL0020541 there.
Nearby on the register
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- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.