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Clean Water Act discharge permit · NPDES TX0134075

MB FRAC VII, Baytown, TX: NPDES TX0134075 discharge permit, effluent exceedances, inspections, penalties

MB FRAC VII, held by ENERGY TRANSFER GC NGL FRACTIONATORS LLC, holds NPDES permit TX0134075, which discharges to Unnamed Tributary Of Cedar Bayou Above Tidal Seg.. EPA’s file records it issued July 17, 2019 and expiring July 17, 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.

Identity

Facility as filedMB FRAC VII
Permittee as filedENERGY TRANSFER GC NGL FRACTIONATORS LLC
NPDES IDTX0134075
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
IssuedJuly 17, 2019
Expiration dateJuly 17, 2024
AddressBaytown, TX 77521
Receiving waterUNNAMED TRIBUTARY OF CEDAR BAYOU ABOVE TIDAL SEG.
SubwatershedEllis Branch-Cedar Bayou (HUC 120402030105)
Other EPA IDs (FRS)RCRA handler TXR000085238; ICIS-AIR source TX0000004807100148

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
pH21614April 30, 2025
Chlorine, total residual11413April 30, 202319,900% over the limit
BOD, 5-day, 20 deg. C4348November 30, 2022774% over the limit
Flow, in conduit or thru treatment plant240
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia110
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia110
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia110
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia110
Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia110
LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia110
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia110
Whole effluent toxicity - retest #1100
Whole effluent toxicity - retest #2100
WET, sublethal retest #1100
WET, sublethal retest #2100
Whole Effluent Toxicity - Retest #3100
Whole Effluent Toxicity, Sub-Lethal Retest #3100
Pass/Fail Static Renewal 7Day Chronic Pimephales promelas100
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas100
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas100
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas100
Coef Of Var Static Renewal 7Day Chronic Pimephales promelas100
LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas100
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas100

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 TX0134075.

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 TX0134075 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 TX0134075 for MB FRAC VII in Baytown, TX, held by ENERGY TRANSFER GC NGL FRACTIONATORS LLC, with a minor discharger classification and administratively continued status. The page lists 24 as the discharger class, 3 pollutants under a numeric limit, and 3 pollutants with an effluent exceedance, and it gives the permit's issue date of July 17, 2019 and expiration date of July 17, 2024 for the Subwatershed Ellis Branch-Cedar Bayou (HUC 120402030105).