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NPDES MOR040039 · Clean Water Act

OFALLON PHASE II MS4, Ofallon, MO: NPDES MOR040039 discharge permit, effluent exceedances, inspections, penalties

OFALLON PHASE II MS4, Ofallon, Missouri: General permit coverage MOR040039, held by O'FALLON, CITY OF; Small municipal storm sewer systems; Administratively continued; issued December 12, 2016, term to September 30, 2021, by MODNR-St. Louis Regional Office; discharges to Peruque Cr..

  • Report due [yrmoda]: 1 limit, 1 violation of any kind.
  • March 11, 2024: WW Storm Water Construction - Failure to develop any or adequate SWPPP/SWMP (ST6).
  • March 11, 2024: Permit Violations - Violation Specified in Comment (ST6).

Missouri holds 97 Small municipal storm sewer systems coverages of this permit type in EPA’s file; 3 were issued before MOR040039.

Coverages issued nearest MOR040039

OFALLON PHASE II MS4 among its neighbors

48 discharge permits are in the Peruque Creek subwatershed (HUC 071100090102); MOR040039 is one. Its county: 774, 9 major; MOR040039 is minor permit.

Other permits in the Peruque Creek subwatershed (HUC 071100090102)

Identity

FacilityOFALLON PHASE II MS4
PermitteeO'FALLON, CITY OF
NPDES IDMOR040039
StatusAdministratively continued
TypeGeneral permit coverage
ClassMinor
Facility typeNon-POTW
ProgramSmall municipal storm sewer systems
IssuedDecember 12, 2016
ExpiresSeptember 30, 2021
AgencyMODNR-St. Louis Regional Office
AddressOfallon, MO 63366
Receiving waterPeruque Cr.
SubwatershedPeruque Creek (HUC 071100090102)

NPDES MOR040039: effluent limits and exceedances

OFALLON PHASE II MS4 (NPDES MOR040039): 1 pollutants on file, 1 limited; 1 with a violation of any kind, 0 with an exceedance.

How exceedances are counted.

PollutantLimitsViolationsExceedancesLatestLargest, as filed
Report due [yrmoda]110

NPDES MOR040039: inspections, violations and enforcement

NPDES MOR040039: 2 single-event violations

DateWhat EPA recordedAgency
March 11, 2024WW Storm Water Construction - Failure to develop any or adequate SWPPP/SWMPST6
March 11, 2024Permit Violations - Violation Specified in CommentST6

NPDES MOR040039 (OFALLON PHASE II MS4): no inspection, formal enforcement action and informal enforcement action on file.

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Permits near NPDES MOR040039

NPDES MOR040039: 1 pollutant rows, 2 dated events; ICIS-NPDES download, loaded September 15, 2026.