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NPDES MOR100086 · Clean Water Act

CITY OF CLAYTON, Clayton, MO: NPDES MOR100086 discharge permit, effluent exceedances, inspections, penalties

CITY OF CLAYTON, Clayton, Missouri: General permit coverage MOR100086, held by City of Clayton; Construction stormwater; Administratively continued; issued October 1, 2017, term to June 22, 2022; discharges to Tributary to Black Cr.; Site Preparation Contractors.

  • Report due [yrmoda]: 1 limit, 24 violations of any kind.
  • December 5, 2025: Reporting Violations - Improper/ Incorrect Reporting (ST6).
  • March 31, 2025: Reporting Violations - Failure to Submit DMRs (ST6).
  • July 3, 2024: Reporting Violations - Improper/ Incorrect Reporting (ST6).
  • November 20, 2023: Reporting Violations - Failure to Submit DMRs (ST6).
  • January 13, 2022: Reporting Violations - Failure to Submit DMRs (ST6).
  • October 15, 2021: Reporting Violations - Failure to Submit DMRs (ST6).

Missouri holds 5,942 Construction stormwater coverages of this permit type in EPA’s file; 26 were issued before MOR100086. City of Clayton holds 3 permits in Missouri.

Other permits held by City of Clayton

Coverages issued nearest MOR100086

CITY OF CLAYTON among its neighbors

74 discharge permits are in the Deer Creek subwatershed (HUC 071401010504); MOR100086 is one. Its county: 872, 8 major; MOR100086 is minor permit.

Other permits in the Deer Creek subwatershed (HUC 071401010504)

Identity

FacilityCITY OF CLAYTON
PermitteeCity of Clayton
NPDES IDMOR100086
StatusAdministratively continued
TypeGeneral permit coverage
ClassMinor
Facility typeNon-POTW
ProgramConstruction stormwater
IssuedOctober 1, 2017
ExpiresJune 22, 2022
AddressClayton, MO 63105
Receiving waterTributary to Black Cr.
SubwatershedDeer Creek (HUC 071401010504)
NAICS238910 – Site Preparation Contractors
SIC1629 – Heavy Construction

NPDES MOR100086: effluent limits and exceedances

CITY OF CLAYTON (NPDES MOR100086): 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]1240

NPDES MOR100086: inspections, violations and enforcement

NPDES MOR100086: 6 single-event violations

DateWhat EPA recordedAgency
December 5, 2025Reporting Violations - Improper/ Incorrect ReportingST6
March 31, 2025Reporting Violations - Failure to Submit DMRsST6
July 3, 2024Reporting Violations - Improper/ Incorrect ReportingST6
November 20, 2023Reporting Violations - Failure to Submit DMRsST6
January 13, 2022Reporting Violations - Failure to Submit DMRsST6
October 15, 2021Reporting Violations - Failure to Submit DMRsST6

NPDES MOR100086 (CITY OF CLAYTON): no inspection, formal enforcement action and informal enforcement action on file.

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Permits near NPDES MOR100086

NPDES MOR100086: 1 pollutant rows, 6 dated events; ICIS-NPDES download, loaded October 14, 2026.