Clean Water Act discharge permit · NPDES IL0004260
MINERVA MINE #1 AND MILL, Cave-In-Rock, IL: NPDES IL0004260 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MINERVA MINE #1 AND MILL, held by OZARK-MAHONING MINING, holds NPDES permit IL0004260, which discharges to Sf Rock Creek. EPA’s file records it issued August 29, 1994 and expiring June 1, 1999. 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 | MINERVA MINE #1 AND MILL |
|---|---|
| Permittee as filed | OZARK-MAHONING MINING |
| NPDES ID | IL0004260 |
| 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 29, 1994 |
| Expiration date | June 1, 1999 |
| Address | Cave-In-Rock, IL 62919 |
| Receiving water | SF ROCK CREEK |
| Subwatershed | Rock Creek (HUC 051402040706) |
| SIC | 1479 – Chemical And Fertilizer Mining |
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
- 1Pollutants on file
- 0Under a numeric limit
- 1With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 0 | 1 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES IL0004260.
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 IL0004260.
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 IL0004260 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.