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Chevron Phillips Chemical Company LP

Chemical Preparations, Conroe, Texas. NPDES permit TX0087190, in force until Feb 28, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (20 values), outfall 002 form A monthly (6 values), outfall 001 form Y yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 25 reports late

Limits in force (138)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cdaily average≤ 4.81 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 10.2 lb/dall year001
Oxygen demand, chem. [high level] [COD]daily averagereport only (mg/L)all year001
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year001
Oxygen demand, chem. [high level] [COD]daily average≤ 53.4 lb/dall year001
Oxygen demand, chem. [high level] [COD]daily maximum≤ 66.8 lb/dall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendeddaily average≤ 40 mg/Lall year001
Solids, total suspendeddaily maximum≤ 80 mg/Lall year001
Solids, total suspendeddaily average≤ 5.3 lb/dall year001
Solids, total suspendeddaily maximum≤ 10.7 lb/dall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Oil & Greasedaily maximum≤ 2 lb/dall year001
Chloride [as Cl]daily average≤ 33.4 lb/dall year001
Chloride [as Cl]daily maximum≤ 66.8 lb/dall year001
Sulfate, total [as SO4]daily average≤ 26.7 lb/dall year001
Sulfate, total [as SO4]daily maximum≤ 53.4 lb/dall year001
Carbon tetrachloridedaily average≤ .0017 lb/dall year001
Carbon tetrachloridedaily maximum≤ .0036 lb/dall year001
1,2-Dichloroethanedaily average≤ .0064 lb/dall year001
1,2-Dichloroethanedaily maximum≤ .0197 lb/dall year001
Chloroformdaily average≤ .002 lb/dall year001
Chloroformdaily maximum≤ .0043 lb/dall year001
Toluenedaily average≤ .0024 lb/dall year001
Toluenedaily maximum≤ .0075 lb/dall year001
Benzenedaily average≤ .0035 lb/dall year001
Benzenedaily maximum≤ .0127 lb/dall year001
Acenaphthylenedaily average≤ .0021 lb/dall year001
Acenaphthylenedaily maximum≤ .0055 lb/dall year001
Acenaphthenedaily average≤ .0021 lb/dall year001
Acenaphthenedaily maximum≤ .0055 lb/dall year001
Acrylonitriledaily average≤ .009 lb/dall year001
Acrylonitriledaily maximum≤ .0226 lb/dall year001
Anthracenedaily average≤ .0021 lb/dall year001
Anthracenedaily maximum≤ .0055 lb/dall year001
Benzo[k]fluoranthenedaily average≤ .0021 lb/dall year001
Benzo[k]fluoranthenedaily maximum≤ .0055 lb/dall year001
Benzo[a]pyrenedaily average≤ .00002 lb/dall year001
Benzo[a]pyrenedaily maximum≤ .00004 lb/dall year001
Chlorobenzenedaily average≤ .0014 lb/dall year001
Chlorobenzenedaily maximum≤ .0026 lb/dall year001
Chrysenedaily average≤ .0021 lb/dall year001
Chrysenedaily maximum≤ .0055 lb/dall year001
Diethyl phthalatedaily average≤ .0076 lb/dall year001
Diethyl phthalatedaily maximum≤ .019 lb/dall year001
Dimethyl phthalatedaily average≤ .0018 lb/dall year001
Dimethyl phthalatedaily maximum≤ .0044 lb/dall year001
Ethylbenzenedaily average≤ .003 lb/dall year001
Ethylbenzenedaily maximum≤ .0101 lb/dall year001
Fluoranthenedaily average≤ .0023 lb/dall year001
Fluoranthenedaily maximum≤ .0064 lb/dall year001
Fluorenedaily average≤ .0021 lb/dall year001
Fluorenedaily maximum≤ .0055 lb/dall year001
Hexachlorobutadienedaily average≤ .00172 lb/dall year001
Hexachlorobutadienedaily maximum≤ .00365 lb/dall year001
Hexachloroethanedaily average≤ .002 lb/dall year001
Hexachloroethanedaily maximum≤ .005 lb/dall year001
Methyl chloride [Chloromethane]daily average≤ .008 lb/dall year001
Methyl chloride [Chloromethane]daily maximum≤ .0178 lb/dall year001
Methylene chloridedaily average≤ .0037 lb/dall year001
Methylene chloridedaily maximum≤ .0083 lb/dall year001
Nitrobenzenedaily average≤ .0025 lb/dall year001
Nitrobenzenedaily maximum≤ .0064 lb/dall year001
Phenanthrenedaily average≤ .0021 lb/dall year001
Phenanthrenedaily maximum≤ .0055 lb/dall year001
Pyrenedaily average≤ .0023 lb/dall year001
Pyrenedaily maximum≤ .0063 lb/dall year001
Tetrachloroethylenedaily average≤ .0021 lb/dall year001
Tetrachloroethylenedaily maximum≤ .0052 lb/dall year001
1,1-Dichloroethanedaily average≤ .0021 lb/dall year001
1,1-Dichloroethanedaily maximum≤ .0055 lb/dall year001
1,1-Dichloroethylenedaily average≤ .0015 lb/dall year001
1,1-Dichloroethylenedaily maximum≤ .0023 lb/dall year001
1,1,1-Trichloroethanedaily average≤ .002 lb/dall year001
1,1,1-Trichloroethanedaily maximum≤ .005 lb/dall year001
1,1,2-Trichloroethanedaily average≤ .002 lb/dall year001
1,1,2-Trichloroethanedaily maximum≤ .005 lb/dall year001
Benzo[a]anthracenedaily average≤ .0002 lb/dall year001
Benzo[a]anthracenedaily maximum≤ .0004 lb/dall year001
1,2-Dichlorobenzenedaily average≤ .0072 lb/dall year001
1,2-Dichlorobenzenedaily maximum≤ .0152 lb/dall year001
1,2-Dichloropropanedaily average≤ .0143 lb/dall year001
1,2-Dichloropropanedaily maximum≤ .0215 lb/dall year001
trans-1,2-Dichloroethylenedaily average≤ .002 lb/dall year001
trans-1,2-Dichloroethylenedaily maximum≤ .005 lb/dall year001
1,2,4-Trichlorobenzenedaily average≤ .0064 lb/dall year001
1,2,4-Trichlorobenzenedaily maximum≤ .0131 lb/dall year001
1,3-Dichlorobenzenedaily average≤ .0029 lb/dall year001
1,3-Dichlorobenzenedaily maximum≤ .0041 lb/dall year001
1,4-Dichlorobenzenedaily average≤ .0014 lb/dall year001
1,4-Dichlorobenzenedaily maximum≤ .0026 lb/dall year001
2-Chlorophenoldaily average≤ .0029 lb/dall year001
2-Chlorophenoldaily maximum≤ .0092 lb/dall year001
2-Nitrophenoldaily average≤ .0038 lb/dall year001
2-Nitrophenoldaily maximum≤ .0064 lb/dall year001
2,4-Dichlorophenoldaily average≤ .0036 lb/dall year001
2,4-Dichlorophenoldaily maximum≤ .0105 lb/dall year001
2,4-Dimethylphenoldaily average≤ .0017 lb/dall year001
2,4-Dimethylphenoldaily maximum≤ .0034 lb/dall year001
2,4-Dinitrotoluenedaily average≤ .0106 lb/dall year001
2,4-Dinitrotoluenedaily maximum≤ .0266 lb/dall year001
2,4-Dinitrophenoldaily average≤ .0066 lb/dall year001
2,4-Dinitrophenoldaily maximum≤ .0115 lb/dall year001
2,6-Dinitrotoluenedaily average≤ .0238 lb/dall year001
2,6-Dinitrotoluenedaily maximum≤ .0599 lb/dall year001
4-Nitrophenoldaily average≤ .0067 lb/dall year001
4-Nitrophenoldaily maximum≤ .0116 lb/dall year001
4,6-Dinitro-o-cresoldaily average≤ .0073 lb/dall year001
4,6-Dinitro-o-cresoldaily maximum≤ .0259 lb/dall year001
Phenoldaily average≤ .0014 lb/dall year001
Phenoldaily maximum≤ .0024 lb/dall year001
Naphthalenedaily average≤ .0021 lb/dall year001
Naphthalenedaily maximum≤ .0055 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily average≤ .0096 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ .0261 lb/dall year001
Di-n-butyl phthalatedaily average≤ .0025 lb/dall year001
Di-n-butyl phthalatedaily maximum≤ .0053 lb/dall year001
Vinyl chloridedaily average≤ .0097 lb/dall year001
Vinyl chloridedaily maximum≤ .025 lb/dall year001
Trichloroethylenedaily average≤ .002 lb/dall year001
Trichloroethylenedaily maximum≤ .005 lb/dall year001
Hexachlorobenzenedaily average≤ .000005 lb/dall year001
Hexachlorobenzenedaily maximum≤ .000011 lb/dall year001
Flow, in conduit or thru treatment plantdaily average≤ .016 MGDall year001
Flow, in conduit or thru treatment plantdaily maximum≤ .02 MGDall year001
1,3-Dichloropropylenedaily average≤ .0027 lb/dall year001
1,3-Dichloropropylenedaily maximum≤ .0041 lb/dall year001
3,4-Benzofluoranthenedaily average≤ .0021 lb/dall year001
3,4-Benzofluoranthenedaily maximum≤ .0057 lb/dall year001
Chloroethanedaily average≤ .0097 lb/dall year001
Chloroethanedaily maximum≤ .025 lb/dall year001
Oxygen demand, chem. [high level] [COD]daily maximum≤ 200 mg/Lall year002
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002

How strict are these limits?

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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