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Clean Water Act discharge permit · NPDES TX0133884

MULTI CHEM GROUP SONORA TX FACILITY, Sonora, TX: NPDES TX0133884 discharge permit, effluent exceedances, inspections, penalties

MULTI CHEM GROUP SONORA TX FACILITY, held by MULTICHEM GROUP, LLC, holds NPDES permit TX0133884, which discharges to Unnamed Trib To The Dry Devils Rv;Devils Rv. EPA’s file records it issued October 29, 2020 and expiring October 29, 2025.

MULTI CHEM GROUP SONORA TX FACILITY, Sonora, Texas: Individual permit TX0133884, held by MULTICHEM GROUP, LLC; Administratively continued (past its expiration date and still in force until reissued); issued October 29, 2020, term to October 29, 2025; discharges to UNNAMED TRIB TO THE DRY DEVILS RV;DEVILS RV.

  • Flow, in conduit or thru treatment plant: 2 limits, 16 violations of any kind, 4 effluent exceedances, latest September 30, 2016, largest 567% over the limit.
  • pH: 2 limits, 8 violations of any kind, 4 effluent exceedances, latest August 31, 2015.
  • LC50 Pass/Fail Static 24Hr Acute D. Pulex: 0 limits, 8 violations of any kind, 0 effluent exceedances.
  • LC50 Pass/Fail Static 24Hr Acute Pimephales promelas: 0 limits, 8 violations of any kind, 0 effluent exceedances.
  • Solids, total dissolved: 2 limits, 5 violations of any kind, 0 effluent exceedances.
  • BOD, 5-day, 20 deg. C: 0 limits, 4 violations of any kind, 0 effluent exceedances.
  • Oxygen demand, chem. [high level] [COD]: 0 limits, 4 violations of any kind, 0 effluent exceedances.
  • Solids, total suspended: 0 limits, 4 violations of any kind, 0 effluent exceedances.
  • Oil & Grease: 0 limits, 4 violations of any kind, 0 effluent exceedances.
  • Carbon tetrachloride: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 1,2-Dichloroethane: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Chloroform: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Toluene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Benzene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Acenaphthylene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Acenaphthene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Acrylonitrile: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Anthracene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Benzo[b]fluoranthene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Benzo[k]fluoranthene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Benzo[a]pyrene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Chlorobenzene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Chloroethane, total weight: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Chrysene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Diethyl phthalate: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Dimethyl phthalate: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Ethylbenzene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Fluoranthene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Fluorene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Hexachlorobutadiene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Hexachloroethane: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Methyl chloride [Chloromethane]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Methylene chloride: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Nitrobenzene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Phenanthrene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Pyrene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Tetrachloroethylene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 1,1-Dichloroethane: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 1,1-Dichloroethylene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 1,1,1-Trichloroethane: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 1,1,2-Trichloroethane: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Benzo[a]anthracene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 1,2-Dichlorobenzene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 1,2-Dichloropropane: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • trans-1,2-Dichloroethylene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 1,2,4-Trichlorobenzene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 1,3-Dichlorobenzene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 1,4-Dichlorobenzene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 2-Nitrophenol: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 2,4-Dimethylphenol: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 2,4-Dinitrophenol: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 4-Nitrophenol: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • 4,6-Dinitro-o-cresol: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Phenol: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Naphthalene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Di[2-ethylhexyl] phthalate [DEHP]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Di-n-butyl phthalate: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Vinyl chloride: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Trichloroethylene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • Hexachlorobenzene: 0 limits, 2 violations of any kind, 0 effluent exceedances.
  • May 24, 2017: Permit Violations - Violation Specified in Comment (ST6).

MULTI CHEM GROUP SONORA TX FACILITY among its neighbors

Its county holds 4, 0 of them major permits; TX0133884 is a minor permit.

Other permits in the county

  • CITY OF SONORA WWTP, Sonora: TX0023191, minor permit, discharging to DRY DEVILS RIVER; RIO GRANDE BASIN, permit term to November 8, 2023
  • INGRAM CONCRETE SONORA PLANT, Sonora: TXG110960, minor permit, discharging to DRY DEVILS RIVER, permit term to November 7, 2021
  • SONORA PLANT, Sonora: TXG113519, minor permit, permit term to November 6, 2026

Identity

Facility as filedMULTI CHEM GROUP SONORA TX FACILITY
Permittee as filedMULTICHEM GROUP, LLC
NPDES IDTX0133884
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
IssuedOctober 29, 2020
Expiration dateOctober 29, 2025
AddressSonora, TX 76950
Receiving waterUNNAMED TRIB TO THE DRY DEVILS RV;DEVILS RV
SIC2899 – Chemical Preparations
Other EPA IDs (FRS)RCRA handler TXR000068635

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; the 60 with the most exceedances of 62 are shown.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Flow, in conduit or thru treatment plant2164September 30, 2016567% over the limit
pH284August 31, 2015
LC50 Pass/Fail Static 24Hr Acute D. Pulex080
LC50 Pass/Fail Static 24Hr Acute Pimephales promelas080
Solids, total dissolved250
BOD, 5-day, 20 deg. C040
Oxygen demand, chem. [high level] [COD]040
Solids, total suspended040
Oil & Grease040
Carbon tetrachloride020
1,2-Dichloroethane020
Chloroform020
Toluene020
Benzene020
Acenaphthylene020
Acenaphthene020
Acrylonitrile020
Anthracene020
Benzo[b]fluoranthene020
Benzo[k]fluoranthene020
Benzo[a]pyrene020
Chlorobenzene020
Chloroethane, total weight020
Chrysene020
Diethyl phthalate020
Dimethyl phthalate020
Ethylbenzene020
Fluoranthene020
Fluorene020
Hexachlorobutadiene020
Hexachloroethane020
Methyl chloride [Chloromethane]020
Methylene chloride020
Nitrobenzene020
Phenanthrene020
Pyrene020
Tetrachloroethylene020
1,1-Dichloroethane020
1,1-Dichloroethylene020
1,1,1-Trichloroethane020
1,1,2-Trichloroethane020
Benzo[a]anthracene020
1,2-Dichlorobenzene020
1,2-Dichloropropane020
trans-1,2-Dichloroethylene020
1,2,4-Trichlorobenzene020
1,3-Dichlorobenzene020
1,4-Dichlorobenzene020
2-Nitrophenol020
2,4-Dimethylphenol020
2,4-Dinitrophenol020
4-Nitrophenol020
4,6-Dinitro-o-cresol020
Phenol020
Naphthalene020
Di[2-ethylhexyl] phthalate [DEHP]020
Di-n-butyl phthalate020
Vinyl chloride020
Trichloroethylene020
Hexachlorobenzene020

Inspections, violations and enforcement

DateWhat EPA recordedAgency
May 24, 2017Permit Violations - Violation Specified in CommentST6

Inspections

EPA’s inspection file holds no inspection for NPDES TX0133884.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES TX0133884.

Watch this permit

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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 TX0133884, held by MULTICHEM GROUP, LLC for the MULTI CHEM GROUP SONORA TX FACILITY in Sonora, TX, and lists the permit as administratively continued with a Minor discharger class of 3. The page reports 2 pollutants under a numeric limit and 2 pollutants with an effluent exceedance, with the permit recorded as issued October 29, 2020 and expiring October 29, 2025.