Clean Water Act discharge permit · NPDES PA0242462

ALLEGHENY MINERAL 26 MINE, Slippery Rock, PA: NPDES PA0242462 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
9Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

ALLEGHENY MINERAL 26 MINE, held by ALLEGHENY MINERAL CORP, holds NPDES permit PA0242462, which discharges to Unt To Big Run. EPA’s file records it issued May 9, 2017 and expiring August 5, 2022.

ALLEGHENY MINERAL 26 MINE, Slippery Rock, Pennsylvania: Individual permit PA0242462, held by ALLEGHENY MINERAL CORP; Administratively continued (past its expiration date and still in force until reissued); issued May 9, 2017, term to August 5, 2022, by State Environmental Organization; discharges to UNT To Big Run.

pH: 44 limits, 88 violations of any kind, 0 effluent exceedances.
Iron, total [as Fe]: 36 limits, 72 violations of any kind, 0 effluent exceedances.
Solids, total suspended: 30 limits, 60 violations of any kind, 0 effluent exceedances.
Manganese, total [as Mn]: 30 limits, 60 violations of any kind, 0 effluent exceedances.
Alkalinity, total [as CaCO3]: 22 limits, 44 violations of any kind, 0 effluent exceedances.
Acidity, total [as CaCO3]: 22 limits, 44 violations of any kind, 0 effluent exceedances.
Alkalinity - Acidity [as CaCO3]: 22 limits, 44 violations of any kind, 0 effluent exceedances.
Flow, in conduit or thru treatment plant: 0 limits, 20 violations of any kind, 0 effluent exceedances.
Solids, settleable: 6 limits, 12 violations of any kind, 0 effluent exceedances.
Osmotic pressure, total, unf whl wtr: 10 limits, 2 violations of any kind, 0 effluent exceedances.

Other permits held by ALLEGHENY MINERAL CORP

MCCANDLESS MINE, Slippery Rock: PA0107433, issued August 28, 2018
HARLAN MINE, Portersville: PA0204906, issued October 16, 2018
WITHERS MINE, Ellwood City: PA0227579, issued October 16, 2018
MYERS MINE, Portersville: PA0241881, issued June 21, 2017
ALLEGHENY MINERAL 25 MINE, Grove City: PA0241962, issued August 29, 2016
ALLEGHENY MINERAL 24 MINE, Slippery Rock: PA0242250, issued January 20, 2021
TRUSEL MINE, Portersville: PA0242632, issued July 13, 2020
MINE 21, Kittanning: PA0250392, issued January 16, 2014
MINE 33, Worthington: PA0250406, issued May 29, 2014
BISON MINE, Worthington: PA0252417, issued June 18, 2020

ALLEGHENY MINERAL 26 MINE among its neighbors

EPA’s permit file holds 37 discharge permits in the Hogue Run-Slippery Rock Creek subwatershed (HUC 050301050305), PA0242462 among them.

Other permits in the Hogue Run-Slippery Rock Creek subwatershed (HUC 050301050305)

105 MOHAWK TRAIL SRSTP, Slippery Rock: PA0291269, minor permit, discharging to Slippery Rock Creek, permit term to January 31, 2028
128 HICKORY HILLS LN SRSTP, Slippery Rock: PAG041543, minor permit, discharging to Big Run, permit term to November 11, 2028
151 ETNA ROAD SRSTP, Slippery Rock: PAG041399, minor permit, discharging to Slippery Rock Creek, permit term to November 11, 2028
223 COVERT RD SRSTP, Slippery Rock: PAG041594, minor permit, discharging to UNT To Big Run, permit term to November 11, 2028
247 CREEK DR SRSTP, Slippery Rock: PAG041597, minor permit, discharging to Slippery Rock Creek, permit term to November 11, 2028
343 CREEK DR SRSTP, Slippery Rock: PAG041542, minor permit, discharging to Slippery Rock Creek, permit term to November 11, 2028
491 BRANCHTON RD SRSTP, Slippery Rock: PAG041499, minor permit, discharging to McDonald Run, permit term to November 11, 2028
514 SLIPPERY ROCK RD SRSTP, Slippery Rock: PAG041283, minor permit, discharging to UNT Of Slippery Rock Creek, permit term to November 11, 2028
712 NEW CASTLE RD SRSTP, Slippery Rock: PA0291226, minor permit, discharging to UNT To Slippery Rock Creek, permit term to November 30, 2027
ALLEGHENY MINERAL 24 MINE, Slippery Rock: PA0242250, minor permit, discharging to UNT To Slippery Rock Creek, permit term to December 15, 2021

Identity

Facility as filed	ALLEGHENY MINERAL 26 MINE
Permittee as filed	ALLEGHENY MINERAL CORP
NPDES ID	PA0242462
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 9, 2017
Expiration date	August 5, 2022
Issuing agency	State Environmental Organization
Address	Slippery Rock, PA 16057
Receiving water	UNT To Big Run
Receiving water impaired	303(D) Listed
Subwatershed	Hogue Run-Slippery Rock Creek (HUC 050301050305)

Effluent limits and exceedances

10Pollutants on file
9Under a numeric limit
10With 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
pH	44	88
Iron, total [as Fe]	36	72
Solids, total suspended	30	60
Manganese, total [as Mn]	30	60
Alkalinity, total [as CaCO3]	22	44
Acidity, total [as CaCO3]	22	44
Alkalinity - Acidity [as CaCO3]	22	44
Flow, in conduit or thru treatment plant	0	20
Solids, settleable	6	12
Osmotic pressure, total, unf whl wtr	10	2

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES PA0242462.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES PA0242462.

Inspections

EPA’s inspection file holds no inspection for NPDES PA0242462.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES PA0242462.

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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers Clean Water Act NPDES permit PA0242462 for the ALLEGHENY MINERAL 26 MINE in Slippery Rock, PA, held by ALLEGHENY MINERAL CORP, which discharges to UNT To Big Run. The permit is listed as administratively continued, with a minor discharger class, and it shows 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance. The subwatershed is Hogue Run-Slippery Rock Creek (HUC 050301050305).