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Clean Water Act discharge permit · NPDES MOR04C075

WENTZVILLE PHASE II MS4, Wentzville, MO: NPDES MOR04C075 discharge permit, effluent exceedances, inspections, penalties

WENTZVILLE PHASE II MS4, held by City of Wentzville, holds NPDES permit MOR04C075, which discharges to Mccoy Cr.. EPA’s file records it issued November 1, 2021 and expiring September 30, 2026. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for WENTZVILLE PHASE II MS4: its NPDES ID, its permit type and status, its dates, its address in Wentzville, Missouri, its receiving water, and 1 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MOR04C075.

Identity

Facility as filedWENTZVILLE PHASE II MS4
Permittee as filedCity of Wentzville
NPDES IDMOR04C075
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramSmall municipal storm sewer systems
IssuedNovember 1, 2021
Expiration dateSeptember 30, 2026
AddressWentzville, MO 63385
Receiving waterMcCoy Cr.
SubwatershedMcCoy Creek (HUC 071100080408)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Report due [yrmoda]100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MOR04C075.

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES MOR04C075.

Velarion’s copy of EPA’s ICIS-NPDES files does not yet include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MOR04C075.

Start the watch

How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MOR04C075 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.