Clean Water Act discharge permit · NPDES PA0241792
BLACK RUN GRAVEL MINE, Slippery Rock, PA: NPDES PA0241792 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
BLACK RUN GRAVEL MINE, held by THREE RIVERS AGGREGATES LLC, holds NPDES permit PA0241792, which discharges to Unt Of Black Run. EPA’s file records it issued May 23, 2017 and expiring August 4, 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 | BLACK RUN GRAVEL MINE |
|---|---|
| Permittee as filed | THREE RIVERS AGGREGATES LLC |
| NPDES ID | PA0241792 |
| 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 | May 23, 2017 |
| Expiration date | August 4, 2022 |
| Issuing agency | State Environmental Organization |
| Address | Slippery Rock, PA 16057 |
| Receiving water | UNT Of Black Run |
| Subwatershed | Taylor Run-Slippery Rock Creek (HUC 050301050306) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 8Under a numeric limit
- 9With a violation of any kind
- 1With 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 |
|---|---|---|---|---|---|
| pH | 30 | 181 | 1 | February 28, 2026 | |
| Iron, total [as Fe] | 20 | 120 | 0 | ||
| Alkalinity, total [as CaCO3] | 15 | 90 | 0 | ||
| Acidity, total [as CaCO3] | 15 | 90 | 0 | ||
| Solids, total suspended | 15 | 90 | 0 | ||
| Manganese, total [as Mn] | 15 | 90 | 0 | ||
| Alkalinity - Acidity [as CaCO3] | 15 | 90 | 0 | ||
| Solids, settleable | 5 | 30 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 16 | 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 PA0241792.
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 PA0241792 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.