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Industrial Organic Chemicals, Crosby, Texas. NPDES permit TX0095559, in force until Sep 6, 2029. Last 12 months: over a limit once (last April 2026), 4 of 45 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| April 2026 | Zinc, total [as Zn], daily average | .185 lb/d | ≤ .13 lb/d | 42% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | monthly minimum | ≥ 2 mg/L | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | daily average | ≤ 29.2 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 80.6 lb/d | all year | 001 |
| Oil & Grease | daily average | ≤ 7.7 lb/d | all year | 001 |
| Oil & Grease | daily maximum | ≤ 15.5 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 3.5 lb/d | Apr–Oct | 001 |
| Nitrogen, ammonia total [as N] | daily average | ≤ 6.7 lb/d | Jan, Feb, Mar, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 7 lb/d | Apr–Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 13.4 lb/d | Jan, Feb, Mar, Nov, Dec | 001 |
| Phosphorus, total [as P] | daily maximum | ≤ 33.4 lb/d | all year | 001 |
| Carbon, tot organic [TOC] | daily average | ≤ 167 lb/d | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 334 lb/d | all year | 001 |
| Copper, total [as Cu] | daily average | ≤ .012 lb/d | all year | 001 |
| Copper, total [as Cu] | daily maximum | ≤ .026 lb/d | all year | 001 |
| Zinc, total [as Zn] | daily average | ≤ .13 lb/d | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ .28 lb/d | all year | 001 |
| Carbon tetrachloride | daily average | ≤ .0096 lb/d | all year | 001 |
| Carbon tetrachloride | daily maximum | ≤ .02 lb/d | all year | 001 |
| 1,2-Dichloroethane | daily average | ≤ .036 lb/d | all year | 001 |
| 1,2-Dichloroethane | daily maximum | ≤ .11 lb/d | all year | 001 |
| Chloroform | daily average | ≤ .011 lb/d | all year | 001 |
| Chloroform | daily maximum | ≤ .025 lb/d | all year | 001 |
| Toluene | daily average | ≤ .014 lb/d | all year | 001 |
| Toluene | daily maximum | ≤ .043 lb/d | all year | 001 |
| Benzene | daily average | ≤ .02 lb/d | all year | 001 |
| Benzene | daily maximum | ≤ .073 lb/d | all year | 001 |
| Acenaphthylene | daily average | ≤ .012 lb/d | all year | 001 |
| Acenaphthylene | daily maximum | ≤ .032 lb/d | all year | 001 |
| Acenaphthene | daily average | ≤ .012 lb/d | all year | 001 |
| Acenaphthene | daily maximum | ≤ .032 lb/d | all year | 001 |
| Acrylonitrile | daily average | ≤ .051 lb/d | all year | 001 |
| Acrylonitrile | daily maximum | ≤ .13 lb/d | all year | 001 |
| Anthracene | daily average | ≤ .012 lb/d | all year | 001 |
| Anthracene | daily maximum | ≤ .032 lb/d | all year | 001 |
| Benzo[k]fluoranthene | daily average | ≤ .012 lb/d | all year | 001 |
| Benzo[k]fluoranthene | daily maximum | ≤ .032 lb/d | all year | 001 |
| Benzo[a]pyrene | daily average | ≤ .00008 lb/d | all year | 001 |
| Benzo[a]pyrene | daily maximum | ≤ .00017 lb/d | all year | 001 |
| Chlorobenzene | daily average | ≤ .008 lb/d | all year | 001 |
| Chlorobenzene | daily maximum | ≤ .015 lb/d | all year | 001 |
| Chrysene | daily average | ≤ .012 lb/d | all year | 001 |
| Chrysene | daily maximum | ≤ .032 lb/d | all year | 001 |
| Diethyl phthalate | daily average | ≤ .043 lb/d | all year | 001 |
| Diethyl phthalate | daily maximum | ≤ .11 lb/d | all year | 001 |
| Dimethyl phthalate | daily average | ≤ .01 lb/d | all year | 001 |
| Dimethyl phthalate | daily maximum | ≤ .025 lb/d | all year | 001 |
| Ethylbenzene | daily average | ≤ .017 lb/d | all year | 001 |
| Ethylbenzene | daily maximum | ≤ .058 lb/d | all year | 001 |
| Fluoranthene | daily average | ≤ .013 lb/d | all year | 001 |
| Fluoranthene | daily maximum | ≤ .036 lb/d | all year | 001 |
| Fluorene | daily average | ≤ .012 lb/d | all year | 001 |
| Fluorene | daily maximum | ≤ .032 lb/d | all year | 001 |
| Hexachlorobutadiene | daily average | ≤ .0069 lb/d | all year | 001 |
| Hexachlorobutadiene | daily maximum | ≤ .0146 lb/d | all year | 001 |
| Hexachloroethane | daily average | ≤ .011 lb/d | all year | 001 |
| Hexachloroethane | daily maximum | ≤ .029 lb/d | all year | 001 |
| Methyl chloride [Chloromethane] | daily average | ≤ .046 lb/d | all year | 001 |
| Methyl chloride [Chloromethane] | daily maximum | ≤ .1 lb/d | all year | 001 |
| Methylene chloride | daily average | ≤ .021 lb/d | all year | 001 |
| Methylene chloride | daily maximum | ≤ .048 lb/d | all year | 001 |
| Nitrobenzene | daily average | ≤ .014 lb/d | all year | 001 |
| Nitrobenzene | daily maximum | ≤ .036 lb/d | all year | 001 |
| Phenanthrene | daily average | ≤ .012 lb/d | all year | 001 |
| Phenanthrene | daily maximum | ≤ .032 lb/d | all year | 001 |
| Pyrene | daily average | ≤ .013 lb/d | all year | 001 |
| Pyrene | daily maximum | ≤ .036 lb/d | all year | 001 |
| Tetrachloroethylene | daily average | ≤ .012 lb/d | all year | 001 |
| Tetrachloroethylene | daily maximum | ≤ .03 lb/d | all year | 001 |
| 1,1-Dichloroethane | daily average | ≤ .012 lb/d | all year | 001 |
| 1,1-Dichloroethane | daily maximum | ≤ .032 lb/d | all year | 001 |
| 1,1-Dichloroethylene | daily average | ≤ .0085 lb/d | all year | 001 |
| 1,1-Dichloroethylene | daily maximum | ≤ .013 lb/d | all year | 001 |
| 1,1,1-Trichloroethane | daily average | ≤ .011 lb/d | all year | 001 |
| 1,1,1-Trichloroethane | daily maximum | ≤ .029 lb/d | all year | 001 |
| 1,1,2-Trichloroethane | daily average | ≤ .011 lb/d | all year | 001 |
| 1,1,2-Trichloroethane | daily maximum | ≤ .029 lb/d | all year | 001 |
| Benzo[a]anthracene | daily average | ≤ .0008 lb/d | all year | 001 |
| Benzo[a]anthracene | daily maximum | ≤ .0017 lb/d | all year | 001 |
| 1,2-Dichlorobenzene | daily average | ≤ .041 lb/d | all year | 001 |
| 1,2-Dichlorobenzene | daily maximum | ≤ .087 lb/d | all year | 001 |
| 1,2-Dichloropropane | daily average | ≤ .082 lb/d | all year | 001 |
| 1,2-Dichloropropane | daily maximum | ≤ .12 lb/d | all year | 001 |
| trans-1,2-Dichloroethylene | daily average | ≤ .011 lb/d | all year | 001 |
| trans-1,2-Dichloroethylene | daily maximum | ≤ .029 lb/d | all year | 001 |
| 1,2,4-Trichlorobenzene | daily average | ≤ .036 lb/d | all year | 001 |
| 1,2,4-Trichlorobenzene | daily maximum | ≤ .075 lb/d | all year | 001 |
| 1,3-Dichlorobenzene | daily average | ≤ .017 lb/d | all year | 001 |
| 1,3-Dichlorobenzene | daily maximum | ≤ .023 lb/d | all year | 001 |
| 1,4-Dichlorobenzene | daily average | ≤ .008 lb/d | all year | 001 |
| 1,4-Dichlorobenzene | daily maximum | ≤ .015 lb/d | all year | 001 |
| 2-Chlorophenol | daily average | ≤ .017 lb/d | all year | 001 |
| 2-Chlorophenol | daily maximum | ≤ .052 lb/d | all year | 001 |
| 2-Nitrophenol | daily average | ≤ .022 lb/d | all year | 001 |
| 2-Nitrophenol | daily maximum | ≤ .037 lb/d | all year | 001 |
| 2,4-Dichlorophenol | daily average | ≤ .021 lb/d | all year | 001 |
| 2,4-Dichlorophenol | daily maximum | ≤ .06 lb/d | all year | 001 |
| 2,4-Dimethylphenol | daily average | ≤ .0096 lb/d | all year | 001 |
| 2,4-Dimethylphenol | daily maximum | ≤ .019 lb/d | all year | 001 |
| 2,4-Dinitrotoluene | daily average | ≤ .06 lb/d | all year | 001 |
| 2,4-Dinitrotoluene | daily maximum | ≤ .15 lb/d | all year | 001 |
| 2,4-Dinitrophenol | daily average | ≤ .038 lb/d | all year | 001 |
| 2,4-Dinitrophenol | daily maximum | ≤ .066 lb/d | all year | 001 |
| 2,6-Dinitrotoluene | daily average | ≤ .136 lb/d | all year | 001 |
| 2,6-Dinitrotoluene | daily maximum | ≤ .34 lb/d | all year | 001 |
| 4-Nitrophenol | daily average | ≤ .038 lb/d | all year | 001 |
| 4-Nitrophenol | daily maximum | ≤ .066 lb/d | all year | 001 |
| 4,6-Dinitro-o-cresol | daily average | ≤ .042 lb/d | all year | 001 |
| 4,6-Dinitro-o-cresol | daily maximum | ≤ .15 lb/d | all year | 001 |
| Phenol | daily average | ≤ .008 lb/d | all year | 001 |
| Phenol | daily maximum | ≤ .014 lb/d | all year | 001 |
| Naphthalene | daily average | ≤ .012 lb/d | all year | 001 |
| Naphthalene | daily maximum | ≤ .032 lb/d | all year | 001 |
| Di[2-ethylhexyl] phthalate [DEHP] | daily average | ≤ .055 lb/d | all year | 001 |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | ≤ .15 lb/d | all year | 001 |
| Di-n-butyl phthalate | daily average | ≤ .014 lb/d | all year | 001 |
| Di-n-butyl phthalate | daily maximum | ≤ .03 lb/d | all year | 001 |
| Vinyl chloride | daily average | ≤ .056 lb/d | all year | 001 |
| Vinyl chloride | daily maximum | ≤ .14 lb/d | all year | 001 |
| Trichloroethylene | daily average | ≤ .011 lb/d | all year | 001 |
| Trichloroethylene | daily maximum | ≤ .029 lb/d | all year | 001 |
| Hexachlorobenzene | daily average | ≤ .00002 lb/d | all year | 001 |
| Hexachlorobenzene | daily maximum | ≤ .00004 lb/d | all year | 001 |
| Phenols | daily average | ≤ .08 lb/d | all year | 001 |
| Phenols | daily maximum | ≤ .15 lb/d | all year | 001 |
| Flow, in conduit or thru treatment plant | daily average | ≤ .2 MGD | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ .21 MGD | all year | 001 |
| Chlorine, total residual | monthly minimum | ≥ 1 mg/L | all year | 001 |
| Chlorine, total residual | monthly maximum | ≤ 4 mg/L | all year | 001 |
| E. coli | daily average | ≤ 126 CFU/100mL | all year | 001 |
| E. coli | daily maximum | ≤ 399 CFU/100mL | all year | 001 |
| 1,3-Dichloropropylene | daily average | ≤ .015 lb/d | all year | 001 |
| 1,3-Dichloropropylene | daily maximum | ≤ .023 lb/d | all year | 001 |
| 3,4-Benzofluoranthene | daily average | ≤ .012 lb/d | all year | 001 |
| 3,4-Benzofluoranthene | daily maximum | ≤ .033 lb/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily average | ≤ 16.7 lb/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 33.4 lb/d | all year | 001 |
| Xylene [mix of m+o+p] | daily maximum | ≤ 1.67 lb/d | all year | 001 |
| Chloroethane | daily average | ≤ .056 lb/d | all year | 001 |
| Chloroethane | daily maximum | ≤ .143 lb/d | all year | 001 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 200 mg/L | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 200 mg/L | all year | 003 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 003 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 200 mg/L | all year | 004 |
| pH | minimum | ≥ 6 SU | all year | 004 |
| pH | maximum | ≤ 9 SU | all year | 004 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 004 |
| Flow, in conduit or thru treatment plant | daily average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
Cited limits by parameter: Texas's rules and the federal ones.
Same industry: the 165 Chemicals and Allied Products permits in Texas.
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