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
- 1Inspections on file
- 0Formal enforcement actions
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.
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| February 3, 2026 | Evaluation | S |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES IL0020541.
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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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.
SAVANNA STP, CITY OF, Savanna, Illinois: Individual permit IL0020541, held by SAVANNA, CITY OF; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued May 25, 2018, term to May 31, 2023; discharges to MISSISSIPPI RIVER.
- Coliform, fecal general: 3 limits, 123 violations of any kind, 54 effluent exceedances, latest May 31, 2019, largest 99,999% over the limit.
- Solids, total suspended: 7 limits, 417 violations of any kind, 25 effluent exceedances, latest June 30, 2014, largest 93% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 4 limits, 323 violations of any kind, 15 effluent exceedances, latest February 28, 2011, largest 148% over the limit.
- Chlorine, total residual: 1 limit, 93 violations of any kind, 14 effluent exceedances, latest February 28, 2015, largest 33,220% over the limit.
- Flow, in conduit or thru treatment plant: 4 limits, 324 violations of any kind.
- pH: 2 limits, 157 violations of any kind.
- BOD, 5-day, 20 deg. C: 3 limits, 91 violations of any kind.
- Flow: 2 limits, 10 violations of any kind.
- Nitrogen, ammonia total [as N]: 1 limit, 5 violations of any kind.
- February 3, 2026: Evaluation (S).
Illinois holds 544 Publicly owned treatment works coverages of this permit type in EPA’s file; 341 were issued before IL0020541. SAVANNA, CITY OF holds 2 permits in Illinois.
Other permits held by SAVANNA, CITY OF
- SAVANNA, CITY OF, Savanna: ILL020541, issued 2021-01-01
Coverages issued nearest IL0020541
- 2018-04-13: SHELBYVILLE STP, CITY OF, Shelbyville: IL0021890, held by SHELBYVILLE, CITY OF
- 2018-05-10: SENECA WASTEWATER TREATMENT PLANT, Seneca: IL0022446, held by SENECA, VILLAGE OF
- 2018-05-11: SOUTH FORK SD STP, Bulpitt: IL0050148, held by SOUTH FORK SD
- 2018-05-11: OAK RIDGE SD STP, Metamora: IL0060461, held by OAK RIDGE SD
- 2018-05-11: DAMIANSVILLE STP, VILLAGE OF, Damiansville: IL0063762, held by DAMIANSVILLE, VILLAGE OF
- 2018-06-12: TAMPICO - STP, VILLAGE OF, Tampico: IL0022381, held by TAMPICO, VILLAGE OF
- 2018-06-12: HAMILTON STP, CITY OF, Hamilton: IL0024911, held by HAMILTON, CITY OF
- 2018-06-12: BYRON STP, CITY OF, Byron: IL0027804, held by BYRON, CITY OF
- 2018-06-12: ELWOOD - DEER RUN STP, VILLAGE OF, Elwood: IL0074713, held by ELWOOD, VILLAGE OF
- 2018-06-12: SPRING GROVE STP, Spring Grove: IL0074985, held by SPRING GROVE, VILLAGE OF
SAVANNA STP, CITY OF among its neighbors
3 discharge permits are in the Beaver Creek-Mississippi River subwatershed (HUC 070600051201); IL0020541 is one. Its county: 25, 0 major; IL0020541 is minor permit.
Other permits in the Beaver Creek-Mississippi River subwatershed (HUC 070600051201)
- MISSISSIPPI PALISADES STATE PARK STP, Savanna: IL0053937, minor, term to 2023-08-31
- SAVANNA, CITY OF, Savanna: ILL020541, minor, term to 2025-12-31
Nearby on the register
- Discharge permits in Savanna
- Every permit record in Savanna, A to Z
- Discharge permits in Illinois
- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.
What this page shows
This public-records page covers Clean Water Act discharge permit NPDES IL0020541 for SAVANNA STP, CITY OF in Savanna, IL, held by SAVANNA, CITY OF and discharging to the Mississippi River, with the permit listed as administratively continued. The page lists 9 pollutants on file, 4 of which have a numeric limit and an effluent exceedance, and the permit's issued and expiration dates are given as May 25, 2018 and May 31, 2023.