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Clean Water Act discharge permit · NPDES LA0065161

TETRA TECHNOLOGIES INC. - LAKE CHARLES FACILITY, Westlake, LA: NPDES LA0065161 discharge permit, effluent exceedances, inspections, penalties

TETRA TECHNOLOGIES INC. - LAKE CHARLES FACILITY, held by TETRA TECHNOLOGIES INC., holds NPDES permit LA0065161, which discharges to Bayou Verdine-Calcasieu River. EPA’s file records it issued September 29, 2016 and expiring October 31, 2021. 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.

Identity

Facility as filedTETRA TECHNOLOGIES INC. - LAKE CHARLES FACILITY
Permittee as filedTETRA TECHNOLOGIES INC.
NPDES IDLA0065161
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 29, 2016
Expiration dateOctober 31, 2021
AddressWestlake, LA 70669
Receiving waterBAYOU VERDINE-CALCASIEU RIVER
Receiving water impaired303(D) Listed
SubwatershedBayou Verdine-Calcasieu River (HUC 080802060302)
Other EPA IDs (FRS)RCRA handler LAD985169523; ICIS-AIR source LA0000002201900083

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
Solids, total suspended653August 31, 2023144% over the limit
Enterococci031December 31, 2025280% over the limit
Carbon, tot organic [TOC]211April 30, 202214% over the limit
Flow, in conduit or thru treatment plant820
BOD, 5-day, 20 deg. C420
Coliform, fecal general420
pH400
Oil & Grease200
Chloride [as Cl]200

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 LA0065161.

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 LA0065161 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 NPDES permit LA0065161, held by TETRA TECHNOLOGIES INC. - LAKE CHARLES FACILITY in Westlake, LA, which discharges to Bayou Verdine-Calcasieu River within watershed HUC 080802060302. The permit is listed as administratively continued, with 8 as its discharger class, 3 pollutants under a numeric limit, and 3 pollutants with an effluent exceedance.