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NPDES PA0280747 · Clean Water Act

DUFFY I MINE, Slippery Rock, PA: NPDES PA0280747 discharge permit, effluent exceedances, inspections, penalties

DUFFY I MINE, Slippery Rock, Pennsylvania: Individual permit PA0280747, held by NEISWONGER CONST INC; Administratively continued; issued September 9, 2020, term to September 8, 2025, by State Environmental Organization; discharges to UNT To McMurray Run.

  • pH: 22 limits, 74 violations of any kind.
  • Iron, total [as Fe]: 18 limits, 61 violations of any kind.
  • Solids, total suspended: 15 limits, 51 violations of any kind.
  • Manganese, total [as Mn]: 15 limits, 51 violations of any kind.
  • Alkalinity, total [as CaCO3]: 11 limits, 37 violations of any kind.
  • Acidity, total [as CaCO3]: 11 limits, 37 violations of any kind.
  • Alkalinity - Acidity [as CaCO3]: 11 limits, 37 violations of any kind.
  • Solids, settleable: 3 limits, 10 violations of any kind.
  • Aluminum, total [as Al]: 0 limits, 4 violations of any kind.
  • Temperature, water deg. centigrade: 0 limits, 3 violations of any kind.
  • Specific conductance: 0 limits, 3 violations of any kind.
  • Sulfate, total [as SO4]: 0 limits, 3 violations of any kind.
  • Flow, in conduit or thru treatment plant: 0 limits, 3 violations of any kind.

DUFFY I MINE among its neighbors

6 discharge permits are in the McMurray Run-Slippery Rock Creek subwatershed (HUC 050301050303); PA0280747 is one.

Other permits in the McMurray Run-Slippery Rock Creek subwatershed (HUC 050301050303)

Identity

FacilityDUFFY I MINE
PermitteeNEISWONGER CONST INC
NPDES IDPA0280747
StatusAdministratively continued
TypeIndividual permit
ClassMinor
Facility typeNon-POTW
IssuedSeptember 9, 2020
ExpiresSeptember 8, 2025
AgencyState Environmental Organization
AddressSlippery Rock, PA 16057
Receiving waterUNT To McMurray Run
SubwatershedMcMurray Run-Slippery Rock Creek (HUC 050301050303)

NPDES PA0280747: effluent limits and exceedances

DUFFY I MINE (NPDES PA0280747): 13 pollutants on file, 8 limited; 13 with a violation of any kind, 0 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
pH22740
Iron, total [as Fe]18610
Solids, total suspended15510
Manganese, total [as Mn]15510
Alkalinity, total [as CaCO3]11370
Acidity, total [as CaCO3]11370
Alkalinity - Acidity [as CaCO3]11370
Solids, settleable3100
Aluminum, total [as Al]040
Temperature, water deg. centigrade030
Specific conductance030
Sulfate, total [as SO4]030
Flow, in conduit or thru treatment plant030

NPDES PA0280747: inspections, violations and enforcement

NPDES PA0280747 (DUFFY I MINE): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.

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Permits near NPDES PA0280747

NPDES PA0280747: 13 pollutant rows, 0 dated events; ICIS-NPDES download, loaded September 15, 2026.