Clean Water Act discharge permit · NPDES IL0053937
MISSISSIPPI PALISADES STATE PARK STP, Savanna, IL: NPDES IL0053937 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
MISSISSIPPI PALISADES STATE PARK STP, held by ILLINOIS DEPARTMENT OF NATURAL RESOURCES, holds NPDES permit IL0053937, which discharges to Hatfield Creek To Mississippi River. EPA’s file records it issued August 15, 2018 and expiring August 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 | MISSISSIPPI PALISADES STATE PARK STP |
|---|---|
| Permittee as filed | ILLINOIS DEPARTMENT OF NATURAL RESOURCES |
| NPDES ID | IL0053937 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 15, 2018 |
| Expiration date | August 31, 2023 |
| Address | Savanna, IL 61074 |
| Receiving water | HATFIELD CREEK TO MISSISSIPPI RIVER |
| 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 16 | 235 | 146 | October 31, 2025 | 2,817% over the limit |
| Oxygen, dissolved [DO] | 5 | 65 | 39 | October 31, 2024 | 100% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 70 | 6 | May 31, 2024 | 40% over the limit |
| Solids, total suspended | 5 | 77 | 4 | June 30, 2022 | 142% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 56 | 0 | ||
| pH | 2 | 31 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 13 | 0 | ||
| Chlorine, total residual | 1 | 13 | 0 | ||
| Coliform, fecal general | 1 | 2 | 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 IL0053937.
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 IL0053937 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.