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Clean Water Act discharge permit · NPDES LA0109606

SHELL CHEMICAL LP - NORCO CHEMICAL PLANT – EAST SITE, Norco, LA: NPDES LA0109606 discharge permit, effluent exceedances, inspections, penalties

SHELL CHEMICAL LP - NORCO CHEMICAL PLANT – EAST SITE, held by SHELL CHEMICAL,LP, holds NPDES permit LA0109606, which discharges to Mississippi River. EPA’s file records it issued September 20, 2019 and expiring October 31, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for SHELL CHEMICAL LP - NORCO CHEMICAL PLANT – EAST SITE: its NPDES ID, its permit type and status, its dates, its address in Norco, Louisiana, its receiving water, and 2 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES LA0109606.

Identity

Facility as filedSHELL CHEMICAL LP - NORCO CHEMICAL PLANT – EAST SITE
Permittee as filedSHELL CHEMICAL,LP
NPDES IDLA0109606
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
IssuedSeptember 20, 2019
Expiration dateOctober 31, 2024
AddressNorco, LA 70079
Receiving waterMISSISSIPPI RIVER
Receiving water impaired303(D) Listed
SubwatershedBayou La Branche-Frontal Lake Pontchartrain (HUC 080902030101)
Other EPA IDs (FRS)RCRA handler LAD008186579; ICIS-AIR source LA0000002208900002

Cited to the EPA ICIS-NPDES permit file (ECHO 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
Flow2000
Flow, in conduit or thru treatment plant400

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES LA0109606.

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 LA0109606.

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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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 LA0109606 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers the Clean Water Act discharge permit NPDES LA0109606 for SHELL CHEMICAL LP - NORCO CHEMICAL PLANT – EAST SITE in Norco, LA, which discharges to Mississippi River. The register lists 2 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.