Clean Water Act discharge permit · NPDES MORA29817

GENERAL MOTORS WENTZVILLE ASSEMBLY CNTR, Wentzville, MO: NPDES MORA29817 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

GENERAL MOTORS WENTZVILLE ASSEMBLY CNTR, held by General Motors LLC, holds NPDES permit MORA29817, which discharges to Tributary To Lake St. Louis. EPA’s file records it issued March 27, 2026 and expiring February 7, 2027. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for GENERAL MOTORS WENTZVILLE ASSEMBLY CNTR: its NPDES ID, its permit type and status, its dates, its address in Wentzville, Missouri, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MORA29817.

Identity

Facility as filed	GENERAL MOTORS WENTZVILLE ASSEMBLY CNTR
Permittee as filed	General Motors LLC
NPDES ID	MORA29817
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Issued	March 27, 2026
Expiration date	February 7, 2027
Address	Wentzville, MO 63385
Receiving water	Tributary to Lake St. Louis
Subwatershed	Headwaters Peruque Creek (HUC 071100090101)
SIC	1629 – Heavy Construction

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES MORA29817.

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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MORA29817.

Velarion’s copy of EPA’s ICIS-NPDES files does not 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, MORA29817.

Start the watch

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 MORA29817 there.

Nearby on the register

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

This public-records page covers the NPDES MORA29817 Clean Water Act discharge permit held by General Motors LLC for the GENERAL MOTORS WENTZVILLE ASSEMBLY CNTR in Wentzville, MO, which discharges to Tributary To Lake St. Louis. The permit is listed as Effective, a Minor discharger class, and coverage under a general permit for construction stormwater, with an issue date of March 27, 2026 and an expiration date of February 7, 2027. The page shows 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.