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NPDES MOG490603 · Clean Water Act

FISCHER MATERIALS, Gravois Mills, MO: NPDES MOG490603 discharge permit, effluent exceedances, inspections, penalties

FISCHER MATERIALS, Gravois Mills, Missouri: General permit coverage MOG490603, held by FISCHER MATERIALS, INC.; Industrial stormwater; Effective; issued June 1, 2022, term to April 30, 2027; discharges to Gravois Cr..

  • pH: 2 limits, 42 violations of any kind.
  • Solids, total suspended: 2 limits, 42 violations of any kind.
  • Solids, settleable: 2 limits, 42 violations of any kind.
  • Oil and grease [soxhlet extr.] tot.: 2 limits, 42 violations of any kind.
  • Flow, in conduit or thru treatment plant: 2 limits, 42 violations of any kind.
  • April 24, 2026: WW Storm Water Construction - Failure to develop any or adequate SWPPP/SWMP (ST6).
  • March 26, 2026: Evaluation (S).

Missouri holds 3,107 Industrial stormwater coverages of this permit type in EPA’s file; 2,382 were issued before MOG490603.

Coverages issued nearest MOG490603

FISCHER MATERIALS among its neighbors

7 discharge permits are in the Gravois Creek subwatershed (HUC 102901090402); MOG490603 is one. Its county: 149, 0 major; MOG490603 is minor permit.

Other permits in the Gravois Creek subwatershed (HUC 102901090402)

  • ALAN MARTIN, Stover: MORA30490, minor, term to 2027-02-07
  • BK3 FARMS, Versailles: MORA25138, minor, term to 2027-02-07
  • DUANEREIFF, Versailles: MORA27942, minor, term to 2027-02-07
  • HIBDON GRAVEL, Versailles: MOG500128, minor, term to 2022-05-22
  • KINCAID SEPTIC, Versailles: MOG821088, minor, term to 2022-11-30
  • OASIS RV PARK, Versailles: MORA30060, minor, term to 2027-02-07

Identity

FacilityFISCHER MATERIALS
PermitteeFISCHER MATERIALS, INC.
NPDES IDMOG490603
StatusEffective
TypeGeneral permit coverage
ClassMinor
Facility typeNon-POTW
ProgramIndustrial stormwater
IssuedJune 1, 2022
ExpiresApril 30, 2027
AddressGravois Mills, MO 65037
Receiving waterGravois Cr.
SubwatershedGravois Creek (HUC 102901090402)
SIC1422 – Crushed And Broken Limestone

NPDES MOG490603: effluent limits and exceedances

FISCHER MATERIALS (NPDES MOG490603): 5 pollutants on file, 5 limited; 5 with a violation of any kind, 0 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
pH2420
Solids, total suspended2420
Solids, settleable2420
Oil and grease [soxhlet extr.] tot.2420
Flow, in conduit or thru treatment plant2420

NPDES MOG490603: inspections, violations and enforcement

NPDES MOG490603: 1 single-event violation

DateWhat EPA recordedAgency
April 24, 2026WW Storm Water Construction - Failure to develop any or adequate SWPPP/SWMPST6

NPDES MOG490603: 1 inspection

DateWhat EPA recordedAgency
March 26, 2026EvaluationS

NPDES MOG490603 (FISCHER MATERIALS): no formal enforcement action and informal enforcement action on file.

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Permits near NPDES MOG490603

NPDES MOG490603: 5 pollutant rows, 2 dated events; ICIS-NPDES download, loaded October 14, 2026.