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Clean Water Act discharge permit · NPDES GMG290232

TRUNKLINE GAS COMPANY LLC, Lake Charles, LA: NPDES GMG290232 discharge permit, effluent exceedances, inspections, penalties

TRUNKLINE GAS COMPANY LLC holds NPDES permit GMG290232. EPA’s file records it issued September 28, 2012 and expiring September 30, 2017. 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 filedTRUNKLINE GAS COMPANY LLC
Permittee as filedTRUNKLINE GAS COMPANY LLC
NPDES IDGMG290232
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedSeptember 28, 2012
Expiration dateSeptember 30, 2017
AddressLake Charles, LA 70605
Receiving water impaired303(D) Listed
SubwatershedCalcasieu River-Prien Lake (HUC 080802060303)

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
Whole effluent toxicity161120
Critical Dilution8650
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)8650
NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia8650
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)8650
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia8650
Misc. free oil in Western GOM, OCS12610
Well fluids, oil & grease8560
LF Pass/Fail Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopis bahia)8560
Low Flow Pass/Fail Static Renewal 48Hr Acute Menidia menidia8560
Pass/Fail Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)8560
Pass/Fail Static Renewal 7Day Chronic Menidia8560
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)8560
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia8560
NOAEC Lethal Static Renewal 48HR Acute Americamysis bahia (formerly Mysidopsis bahia)8560
NOAEC Lethal Static Renewal 48HR Acute Menidia menidia8560
Coef Of Var Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)8560
Coef Of Var Static Renewal 48Hr Acute Menidia menidia8560
LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)8560
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia8560
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)8560
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia8560
Sanitary waste, residual chlorine4370
Sanitary waste, solids4350
Flow4280
Well fluids, free oil4280
Coef Of Var Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia)4280
Coef Of Var Static Renewal 7Day Chronic Menidia menidia4280
Maintenance Waste: Do you have a BMP?4160
Maintenance Waste: Are you using a BMP?4160
Deck drainage, free oil4150
Miscellaneous Discharge Toxicity [Subsea Discharges] [Americamysis bahia (Mysidopsis bahia)]090
Miscellaneous Discharge Toxicity [Subsea Discharges] [Menidia beryllina]090
Miscellaneous Discharges [Pipeline Brine] [Free Oil]090
Miscellaneous Discharges [Pipeline Brine] [Oil & Grease]090
Domestic waste, foam and floating solids460

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES GMG290232.

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 GMG290232.

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 GMG290232 there.

Nearby on the register

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