Clean Water Act discharge permit · NPDES IL0053201
LAKE IROQUOIS SUBDIVISION STP, Loda, IL: NPDES IL0053201 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
LAKE IROQUOIS SUBDIVISION STP, held by LAKE IROQUOIS ASSOCIATION, holds NPDES permit IL0053201, which discharges to Spring Creek. EPA’s file records it issued August 21, 2020 and expiring August 31, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | LAKE IROQUOIS SUBDIVISION STP |
|---|---|
| Permittee as filed | LAKE IROQUOIS ASSOCIATION |
| NPDES ID | IL0053201 |
| 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 21, 2020 |
| Expiration date | August 31, 2025 |
| Address | Loda, IL 60948 |
| Receiving water | SPRING CREEK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Headwaters Spring Creek (HUC 071200020805) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 10Pollutants on file
- 10Under a numeric limit
- 9With a violation of any kind
- 5With 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] | 20 | 394 | 258 | May 31, 2023 | 2,567% over the limit |
| Oxygen, dissolved [DO] | 5 | 69 | 60 | June 30, 2025 | 85% over the limit |
| Solids, total suspended | 6 | 322 | 58 | January 31, 2026 | 1,858% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 231 | 34 | January 31, 2018 | 270% over the limit |
| Coliform, fecal general | 2 | 6 | 6 | October 31, 2022 | 99,999% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 234 | 0 | ||
| pH | 2 | 118 | 0 | ||
| Chlorine, total residual | 2 | 62 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 56 | 0 | ||
| Flow | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 1, 2025 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | ST6 |
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 IL0053201 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.