Clean Water Act discharge permit · NPDES IL0048593
OTTER CREEK LAKE UTILITY DISTRICT STP, Davis, IL: NPDES IL0048593 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
OTTER CREEK LAKE UTILITY DISTRICT STP, held by OTTER CREEK LAKE UTILITY DISTRICT, holds NPDES permit IL0048593, which discharges to South Branch Of Otter Creek. EPA’s file records it issued March 8, 2018 and expiring March 31, 2023. 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 | OTTER CREEK LAKE UTILITY DISTRICT STP |
|---|---|
| Permittee as filed | OTTER CREEK LAKE UTILITY DISTRICT |
| NPDES ID | IL0048593 |
| 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 |
| Program | Biosolids |
| Issued | March 8, 2018 |
| Expiration date | March 31, 2023 |
| Address | Davis, IL 61019 |
| Receiving water | SOUTH BRANCH OF OTTER CREEK |
| Subwatershed | Rock Run (HUC 070900031403) |
| SIC | 4939 – Combination Utilities |
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
- 9Pollutants on file
- 9Under a numeric limit
- 8With a violation of any kind
- 3With 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] | 18 | 37 | 29 | June 30, 2026 | 758% over the limit |
| Solids, total suspended | 5 | 14 | 9 | June 30, 2026 | 254% over the limit |
| Oxygen, dissolved [DO] | 5 | 2 | 2 | May 31, 2026 | 30% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 4 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 4 | 0 | ||
| pH | 2 | 2 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 1 | 0 | ||
| Chlorine, total residual | 1 | 1 | 0 | ||
| Coliform, fecal general | 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 IL0048593.
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, IL0048593.
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- One state — $4,990/year
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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 IL0048593 there.
Nearby on the register
- Discharge permits in Davis
- Every permit record in Davis, 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.