Clean Water Act discharge permit · NPDES PA0002895
MITCHELL POWER STA, Courtney, PA: NPDES PA0002895 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 13Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
MITCHELL POWER STA, held by ALLEGHENY ENERGY SUPPLY CO LLC, holds NPDES permit PA0002895, which discharges to Monongahela Rvr. EPA’s file records it issued September 30, 1991 and expiring September 30, 1996. 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 | MITCHELL POWER STA |
|---|---|
| Permittee as filed | ALLEGHENY ENERGY SUPPLY CO LLC |
| NPDES ID | PA0002895 |
| 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 | September 30, 1991 |
| Expiration date | September 30, 1996 |
| Address | Courtney, PA 15067 |
| Receiving water | MONONGAHELA RVR |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Mingo Creek-Monongahela River (HUC 050200050805) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 13Pollutants on file
- 13Under a numeric limit
- 13With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| Boron, total [as B] | 6 | 130 | 124 | August 31, 2021 | 82% over the limit |
| pH | 22 | 54 | 18 | December 31, 2013 | |
| Solids, total suspended | 18 | 39 | 15 | July 31, 2011 | 61,988% over the limit |
| Thermal Discharge | 42 | 16 | 11 | November 30, 2001 | 68% over the limit |
| Iron, total [as Fe] | 7 | 29 | 5 | February 28, 2013 | 5,908% over the limit |
| Oil & Grease | 14 | 21 | 3 | February 28, 2021 | 44% over the limit |
| Aluminum, total [as Al] | 6 | 5 | 1 | May 31, 2010 | 183% over the limit |
| Flow, in conduit or thru treatment plant | 44 | 112 | 0 | ||
| Copper, total [as Cu] | 3 | 15 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 2 | 2 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 2 | 0 | ||
| Coliform, fecal general | 2 | 1 | 0 | ||
| Chlorine, total residual | 1 | 1 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| September 1, 2021 | Effluent Violations - Numeric effluent violation | ST6 |
| January 8, 2020 | Permit Violations - Violation Specified in Comment | ST6 |
| November 9, 2018 | Effluent Violations - Numeric effluent violation | 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 PA0002895 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.