Clean Water Act discharge permit · NPDES IL0055581
CAVE IN ROCK STP, VILLAGE OF, Cave-In-Rock, IL: NPDES IL0055581 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
CAVE IN ROCK STP, VILLAGE OF, held by CAVE IN ROCK, VILLAGE OF, holds NPDES permit IL0055581, which discharges to Unnamed Trib To Ohio River. EPA’s file records it issued September 26, 2017 and expiring August 31, 2022. 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 | CAVE IN ROCK STP, VILLAGE OF |
|---|---|
| Permittee as filed | CAVE IN ROCK, VILLAGE OF |
| NPDES ID | IL0055581 |
| 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 | September 26, 2017 |
| Expiration date | August 31, 2022 |
| Address | Cave-In-Rock, IL 62919 |
| Receiving water | UNNAMED TRIB TO OHIO RIVER |
| Subwatershed | Peters Creek-Ohio River (HUC 051402030306) |
Cited to the EPA ICIS-NPDES permit file (ECHO 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 |
|---|---|---|---|---|---|
| Oxygen, dissolved [DO] | 5 | 39 | 4 | July 31, 2026 | 50% over the limit |
| Coliform, fecal general | 1 | 38 | 4 | May 31, 2016 | 99,999% over the limit |
| Solids, total suspended | 5 | 181 | 3 | February 28, 2003 | 70% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 150 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 140 | 0 | ||
| pH | 2 | 70 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 40 | 0 | ||
| Chlorine, total residual | 1 | 35 | 0 | ||
| Nitrogen, ammonia total [as N] | 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 |
|---|---|---|
| May 30, 2025 | Wet-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.
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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 IL0055581 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.