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NPDES TX0139483 · Clean Water Act

MM TIN TOP QUARRY 4, Weatherford, TX: NPDES TX0139483 discharge permit, effluent exceedances, inspections, penalties

MM TIN TOP QUARRY 4, Weatherford, Texas: Individual permit TX0139483, held by MARTIN MARIETTA MATERIALS SOUTHWEST LLC; Administratively continued; issued May 29, 2020, term to May 29, 2025; discharges to Possum Kingdom Lake.

10 of the 15 pollutants listed for NPDES TX0139483 have no violation or effluent exceedance.

  • pH: 4 limits, 7 violations of any kind, 3 effluent exceedances, latest February 28, 2026.
  • Solids, total suspended: 2 limits, 5 violations of any kind, 3 effluent exceedances, latest June 30, 2026, largest 272% over the limit.
  • Manganese, total [as Mn]: 4 limits, 8 violations of any kind.
  • Barium, total [as Ba]: 4 limits, 4 violations of any kind.
  • Flow, in conduit or thru treatment plant: 4 limits, 4 violations of any kind.
  • Arsenic, total [as As]: 4 limits.
  • Cadmium, total [as Cd]: 4 limits.
  • Chromium, total [as Cr]: 4 limits.
  • Copper, total [as Cu]: 4 limits.
  • Lead, total [as Pb]: 4 limits.
  • Nickel, total [as Ni]: 4 limits.
  • Silver, total [as Ag]: 4 limits.
  • Zinc, total [as Zn]: 4 limits.
  • Selenium, total [as Se]: 4 limits.
  • Mercury, total [as Hg]: 4 limits.
  • September 4, 2026: Agency Enforcement Review (State).

Other permits held by MARTIN MARIETTA MATERIALS SOUTHWEST LLC

MM TIN TOP QUARRY 4 among its neighbors

23 discharge permits are in the Sanchez Creek subwatershed (HUC 120602011201); TX0139483 is one. Its county: 245, 4 major; TX0139483 is minor permit.

Other permits in the Sanchez Creek subwatershed (HUC 120602011201)

Identity

FacilityMM TIN TOP QUARRY 4
PermitteeMARTIN MARIETTA MATERIALS SOUTHWEST LLC
NPDES IDTX0139483
StatusAdministratively continued
TypeIndividual permit
ClassMinor
Facility typeNon-POTW
IssuedMay 29, 2020
ExpiresMay 29, 2025
AddressWeatherford, TX 76087
Receiving waterPossum Kingdom Lake
SubwatershedSanchez Creek (HUC 120602011201)

NPDES TX0139483: effluent limits and exceedances

MM TIN TOP QUARRY 4 (NPDES TX0139483): 15 pollutants on file, 15 limited; 5 with a violation of any kind, 2 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
pH473February 28, 2026
Solids, total suspended253June 30, 2026272% over the limit
Manganese, total [as Mn]480
Barium, total [as Ba]440
Flow, in conduit or thru treatment plant440
Arsenic, total [as As]400
Cadmium, total [as Cd]400
Chromium, total [as Cr]400
Copper, total [as Cu]400
Lead, total [as Pb]400
Nickel, total [as Ni]400
Silver, total [as Ag]400
Zinc, total [as Zn]400
Selenium, total [as Se]400
Mercury, total [as Hg]400

NPDES TX0139483: inspections, violations and enforcement

NPDES TX0139483: 1 informal enforcement action

DateWhat EPA recordedAgency
September 4, 2026Agency Enforcement ReviewState

NPDES TX0139483 (MM TIN TOP QUARRY 4): no single-event violation, inspection and formal enforcement action on file.

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Permits near NPDES TX0139483

NPDES TX0139483: 15 pollutant rows, 1 dated events; ICIS-NPDES download, loaded September 15, 2026.