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Clean Water Act discharge permit · NPDES LA0046485

WESTWEGO GRAIN ELEVATOR, Westwego, LA: NPDES LA0046485 discharge permit, effluent exceedances, inspections, penalties

WESTWEGO GRAIN ELEVATOR, held by CARGILL, INC., holds NPDES permit LA0046485, which discharges to Miss River/ Bayou Signette. EPA’s file records it issued December 27, 2018 and expiring January 31, 2024. 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.

Identity

Facility as filedWESTWEGO GRAIN ELEVATOR
Permittee as filedCARGILL, INC.
NPDES IDLA0046485
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedDecember 27, 2018
Expiration dateJanuary 31, 2024
AddressWestwego, LA 70094
Receiving waterMISS RIVER/ BAYOU SIGNETTE
Receiving water impaired303(D) Listed
SubwatershedMississippi River-Bonnet Carre Spillway (HUC 080901000101)
SIC5153 – Grain And Field Beans
Other EPA IDs (FRS)RCRA handler LAD985223569; ICIS-AIR source LA0000002205100030

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

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
Carbon, tot organic [TOC]24530March 31, 20252,500% over the limit
Oil & Grease295December 31, 2025120% over the limit
Coliform, fecal general8284June 30, 202099,999% over the limit
pH12551December 31, 2020
BOD, 5-day, 20 deg. C8251June 30, 202020% over the limit
Solids, total suspended8251June 30, 202227% over the limit
Flow, in conduit or thru treatment plant12540
Oil and grease0110

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 LA0046485.

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.

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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 LA0046485 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit LA0046485 for the Westwego Grain Elevator in Westwego, LA, held by Cargill, Inc., which discharges to Miss River/ Bayou Signette. The permit is administratively continued, classed as a Minor Discharger, and shows 7 pollutants under a numeric limit and 6 pollutants with an effluent exceedance.