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Gulf Coast Authority

Sewage treatment plant, major discharger, Odessa, Texas. NPDES permit TX0113026 expired Mar 17, 2025; its limits still apply. 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 (35 values), outfall 901 form A monthly (13 values), outfall 001 form Y yearly, outfall 901 form Y yearly, outfall TX1 form S twice a year, outfall TX1 form Y yearly, and 1 more form
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 1 required value missing, 0 of 31 reports late

Limits in force (236)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendeddaily averagereport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Solids, total suspendeddaily average≤ 1096 lb/dall year001
Solids, total suspendeddaily maximum≤ 3216 lb/dall year001
Oil & Greasedaily averagereport only (mg/L)all year001
Oil & Greasedaily maximumreport only (mg/L)all year001
Oil & Greasedaily average≤ 521 lb/dall year001
Oil & Greasedaily maximum≤ 726 lb/dall year001
Nitrogen, ammonia total [as N]daily averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily average≤ 303 lb/dall year001
Nitrogen, ammonia total [as N]daily maximum≤ 641 lb/dall year001
Carbon, tot organic [TOC]daily averagereport only (mg/L)all year001
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year001
Carbon, tot organic [TOC]daily average≤ 2563 lb/dall year001
Carbon, tot organic [TOC]daily maximum≤ 4557 lb/dall year001
Aluminum, total [as Al]daily averagereport only (mg/L)all year001
Aluminum, total [as Al]daily maximumreport only (mg/L)all year001
Aluminum, total [as Al]daily average≤ 56.8 lb/dall year001
Aluminum, total [as Al]daily maximum≤ 120 lb/dall year001
Carbon tetrachloridedaily average≤ .079 lb/dall year001
Carbon tetrachloridedaily maximum≤ .166 lb/dall year001
1,2-Dichloroethanedaily average≤ .297 lb/dall year001
1,2-Dichloroethanedaily maximum≤ .92 lb/dall year001
Chloroformdaily average≤ .51 lb/dall year001
Chloroformdaily maximum≤ .65 lb/dall year001
Toluenedaily average≤ .113 lb/dall year001
Toluenedaily maximum≤ .349 lb/dall year001
Benzenedaily average≤ .161 lb/dall year001
Benzenedaily maximum≤ .593 lb/dall year001
Acenaphthylenedaily average≤ .096 lb/dall year001
Acenaphthylenedaily maximum≤ .257 lb/dall year001
Acenaphthenedaily average≤ .096 lb/dall year001
Acenaphthenedaily maximum≤ .257 lb/dall year001
Acrylonitriledaily average≤ .419 lb/dall year001
Acrylonitriledaily maximum≤ 1.056 lb/dall year001
Anthracenedaily average≤ .096 lb/dall year001
Anthracenedaily maximum≤ .257 lb/dall year001
Benzo[b]fluoranthenedaily average≤ .1 lb/dall year001
Benzo[b]fluoranthenedaily maximum≤ .266 lb/dall year001
Benzo[k]fluoranthenedaily average≤ .096 lb/dall year001
Benzo[k]fluoranthenedaily maximum≤ .257 lb/dall year001
Benzo[a]pyrenedaily average≤ .1 lb/dall year001
Benzo[a]pyrenedaily maximum≤ .266 lb/dall year001
Chlorobenzenedaily average≤ .065 lb/dall year001
Chlorobenzenedaily maximum≤ .122 lb/dall year001
Chrysenedaily average≤ .096 lb/dall year001
Chrysenedaily maximum≤ .257 lb/dall year001
Diethyl phthalatedaily average≤ .353 lb/dall year001
Diethyl phthalatedaily maximum≤ .886 lb/dall year001
Dimethyl phthalatedaily average≤ .083 lb/dall year001
Dimethyl phthalatedaily maximum≤ .205 lb/dall year001
Ethylbenzenedaily average≤ .14 lb/dall year001
Ethylbenzenedaily maximum≤ .471 lb/dall year001
Fluoranthenedaily average≤ .109 lb/dall year001
Fluoranthenedaily maximum≤ .297 lb/dall year001
Fluorenedaily average≤ .096 lb/dall year001
Fluorenedaily maximum≤ .257 lb/dall year001
Hexachlorobutadienedaily average≤ .087 lb/dall year001
Hexachlorobutadienedaily maximum≤ .214 lb/dall year001
Hexachloroethanedaily average≤ .092 lb/dall year001
Hexachloroethanedaily maximum≤ .236 lb/dall year001
Methyl chloride [Chloromethane]daily average≤ .375 lb/dall year001
Methyl chloride [Chloromethane]daily maximum≤ .829 lb/dall year001
Methylene chloridedaily average≤ .174 lb/dall year001
Methylene chloridedaily maximum≤ .388 lb/dall year001
Nitrobenzenedaily average≤ .118 lb/dall year001
Nitrobenzenedaily maximum≤ .297 lb/dall year001
Phenanthrenedaily average≤ .096 lb/dall year001
Phenanthrenedaily maximum≤ .257 lb/dall year001
Pyrenedaily average≤ .109 lb/dall year001
Pyrenedaily maximum≤ .292 lb/dall year001
Tetrachloroethylenedaily average≤ .096 lb/dall year001
Tetrachloroethylenedaily maximum≤ .244 lb/dall year001
1,1-Dichloroethanedaily average≤ .096 lb/dall year001
1,1-Dichloroethanedaily maximum≤ .257 lb/dall year001
1,1-Dichloroethylenedaily average≤ .07 lb/dall year001
1,1-Dichloroethylenedaily maximum≤ .109 lb/dall year001
1,1,1-Trichloroethanedaily average≤ .092 lb/dall year001
1,1,1-Trichloroethanedaily maximum≤ .236 lb/dall year001
1,1,2-Trichloroethanedaily average≤ .092 lb/dall year001
1,1,2-Trichloroethanedaily maximum≤ .236 lb/dall year001
Benzo[a]anthracenedaily average≤ .096 lb/dall year001
Benzo[a]anthracenedaily maximum≤ .257 lb/dall year001
1,2-Dichlorobenzenedaily average≤ .336 lb/dall year001
1,2-Dichlorobenzenedaily maximum≤ .711 lb/dall year001
1,2-Dichloropropanedaily average≤ .667 lb/dall year001
1,2-Dichloropropanedaily maximum≤ 1.003 lb/dall year001
trans-1,2-Dichloroethylenedaily average≤ .092 lb/dall year001
trans-1,2-Dichloroethylenedaily maximum≤ .236 lb/dall year001
1,2,4-Trichlorobenzenedaily average≤ .297 lb/dall year001
1,2,4-Trichlorobenzenedaily maximum≤ .611 lb/dall year001
1,3-Dichlorobenzenedaily average≤ .135 lb/dall year001
1,3-Dichlorobenzenedaily maximum≤ .192 lb/dall year001
1,4-Dichlorobenzenedaily average≤ .065 lb/dall year001
1,4-Dichlorobenzenedaily maximum≤ .122 lb/dall year001
2-Chlorophenoldaily average≤ .135 lb/dall year001
2-Chlorophenoldaily maximum≤ .427 lb/dall year001
2-Nitrophenoldaily average≤ .179 lb/dall year001
2-Nitrophenoldaily maximum≤ .301 lb/dall year001
2,4-Dichlorophenoldaily average≤ .17 lb/dall year001
2,4-Dichlorophenoldaily maximum≤ .489 lb/dall year001
2,4-Dimethylphenoldaily average≤ .079 lb/dall year001
2,4-Dimethylphenoldaily maximum≤ .157 lb/dall year001
2,4-Dinitrotoluenedaily average≤ .493 lb/dall year001
2,4-Dinitrotoluenedaily maximum≤ 1.243 lb/dall year001
2,4-Dinitrophenoldaily average≤ .31 lb/dall year001
2,4-Dinitrophenoldaily maximum≤ .537 lb/dall year001
2,6-Dinitrotoluenedaily average≤ 1.112 lb/dall year001
2,6-Dinitrotoluenedaily maximum≤ 2.796 lb/dall year001
4-Nitrophenoldaily average≤ .314 lb/dall year001
4-Nitrophenoldaily maximum≤ .541 lb/dall year001
4,6-Dinitro-o-cresoldaily average≤ .34 lb/dall year001
4,6-Dinitro-o-cresoldaily maximum≤ 1.208 lb/dall year001
Phenoldaily average≤ .065 lb/dall year001
Phenoldaily maximum≤ .113 lb/dall year001
Naphthalenedaily average≤ .096 lb/dall year001
Naphthalenedaily maximum≤ .257 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily average≤ .449 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 1.217 lb/dall year001
Di-n-butyl phthalatedaily average≤ .118 lb/dall year001
Di-n-butyl phthalatedaily maximum≤ .249 lb/dall year001
Vinyl chloridedaily average≤ .454 lb/dall year001
Vinyl chloridedaily maximum≤ 1.169 lb/dall year001
Trichloroethylenedaily average≤ .092 lb/dall year001
Trichloroethylenedaily maximum≤ .236 lb/dall year001
Hexachlorobenzenedaily average≤ .065 lb/dall year001
Hexachlorobenzenedaily maximum≤ .122 lb/dall year001
Flow, in conduit or thru treatment plantdaily average≤ 5.6 MGDall year001
Flow, in conduit or thru treatment plantdaily maximum≤ 7 MGDall year001
Chlorine, total residualinstantaneous maximum< .1 mg/Lall year001
Chlorine, total residualmonthly minimum≥ 1 mg/Lall year001
E. colidaily average≤ 126 CFU/100mLall year001
E. colidaily maximum≤ 394 CFU/100mLall year001
1,3-Dichloropropylenedaily average≤ .127 lb/dall year001
1,3-Dichloropropylenedaily maximum≤ .192 lb/dall year001
Solids, total dissolveddaily averagereport only (mg/L)all year001
Solids, total dissolveddaily maximum≤ 6000 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily averagereport only (mg/L)all year001
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all year001
BOD, carbonaceous [5 day, 20 C]daily average≤ 739 lb/dall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 1636 lb/dall year001
Chloroethanedaily average≤ .454 lb/dall year001
Chloroethanedaily maximum≤ 1.169 lb/dall year001
BOD, 5-day, 20 deg. Cdaily average≤ 20 mg/Lall year901
BOD, 5-day, 20 deg. Cdaily maximum≤ 60 mg/Lall year901
pHminimum≥ 6 SUall year901
pHmaximum≤ 9 SUall year901
Solids, total suspendeddaily maximum≤ 60 mg/Lall year901
Oil & Greasedaily maximum≤ 15 mg/Lall year901
Carbon, tot organic [TOC]daily maximum≤ 150 mg/Lall year901
Carbon tetrachloridedaily maximum≤ .002 mg/Lall year901
1,2-Dichloroethanedaily maximum≤ .01 mg/Lall year901
Chloroformdaily maximum≤ .014 mg/Lall year901
Toluenedaily maximum≤ .01 mg/Lall year901
Benzenedaily maximum≤ .01 mg/Lall year901
Acenaphthylenedaily maximum≤ .01 mg/Lall year901
Acenaphthenedaily maximum≤ .01 mg/Lall year901
Acrylonitriledaily maximum≤ .05 mg/Lall year901
Anthracenedaily maximum≤ .01 mg/Lall year901
Benzo[b]fluoranthenedaily maximum≤ .01 mg/Lall year901
Benzo[k]fluoranthenedaily maximum≤ .005 mg/Lall year901
Benzo[a]pyrenedaily maximum≤ .005 mg/Lall year901
Chlorobenzenedaily maximum≤ .01 mg/Lall year901
Chrysenedaily maximum≤ .005 mg/Lall year901
Diethyl phthalatedaily maximum≤ .01 mg/Lall year901
Dimethyl phthalatedaily maximum≤ .01 mg/Lall year901
Ethylbenzenedaily maximum≤ .01 mg/Lall year901
Fluoranthenedaily maximum≤ .01 mg/Lall year901
Fluorenedaily maximum≤ .01 mg/Lall year901
Hexachlorobutadienedaily maximum≤ .01 mg/Lall year901
Hexachloroethanedaily maximum≤ .02 mg/Lall year901
Methyl chloride [Chloromethane]daily maximum≤ .05 mg/Lall year901
Methylene chloridedaily maximum≤ .02 mg/Lall year901
Nitrobenzenedaily maximum≤ .01 mg/Lall year901
Phenanthrenedaily maximum≤ .01 mg/Lall year901
Pyrenedaily maximum≤ .01 mg/Lall year901
Tetrachloroethylenedaily maximum≤ .01 mg/Lall year901
1,1-Dichloroethanedaily maximum≤ .01 mg/Lall year901
1,1-Dichloroethylenedaily maximum≤ .01 mg/Lall year901
1,1,1-Trichloroethanedaily maximum≤ .01 mg/Lall year901
1,1,2-Trichloroethanedaily maximum≤ .01 mg/Lall year901
Benzo[a]anthracenedaily maximum≤ .005 mg/Lall year901
1,2-Dichlorobenzenedaily maximum≤ .01 mg/Lall year901
1,2-Dichloropropanedaily maximum≤ .01 mg/Lall year901
trans-1,2-Dichloroethylenedaily maximum≤ .01 mg/Lall year901
1,2,4-Trichlorobenzenedaily maximum≤ .01 mg/Lall year901
1,3-Dichlorobenzenedaily maximum≤ .01 mg/Lall year901
1,4-Dichlorobenzenedaily maximum≤ .01 mg/Lall year901
2-Chlorophenoldaily maximum≤ .01 mg/Lall year901
2-Nitrophenoldaily maximum≤ .02 mg/Lall year901
2,4-Dichlorophenoldaily maximum≤ .01 mg/Lall year901
2,4-Dimethylphenoldaily maximum≤ .01 mg/Lall year901
2,4-Dinitrotoluenedaily maximum≤ .01 mg/Lall year901
2,4-Dinitrophenoldaily maximum≤ .05 mg/Lall year901
2,6-Dinitrotoluenedaily maximum≤ .01 mg/Lall year901
4-Nitrophenoldaily maximum≤ .05 mg/Lall year901
4,6-Dinitro-o-cresoldaily maximum≤ .05 mg/Lall year901
Phenoldaily maximum≤ .01 mg/Lall year901
Naphthalenedaily maximum≤ .01 mg/Lall year901
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ .01 mg/Lall year901
Di-n-butyl phthalatedaily maximum≤ .01 mg/Lall year901
Vinyl chloridedaily maximum≤ .01 mg/Lall year901
Trichloroethylenedaily maximum≤ .01 mg/Lall year901
Hexachlorobenzenedaily maximum≤ .005 mg/Lall year901
Flow, in conduit or thru treatment plantdaily average≤ 5.6 MGDall year901
Flow, in conduit or thru treatment plantdaily maximum≤ 7 MGDall year901
Chlorine, total residualmonthly minimum≥ 1 mg/Lall year901
E. colidaily average≤ 126 CFU/100mLall year901
E. colidaily maximum≤ 394 CFU/100mLall year901
1,3-Dichloropropylenedaily maximum≤ .01 mg/Lall year901
Solids, total dissolveddaily maximumreport only (mg/L)all year901
Chloroethanedaily maximum≤ .05 mg/Lall year901
Whole effluent toxicity - retest #148-hour minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #148-hour minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #248-hour minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #248-hour minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)all yearTX1
IC25 Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia magna48-hour minimumreport only (pass=0;fail=1)all yearTX1
IC25 Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia magnamonthly average minimumreport only (pass=0;fail=1)all yearTX1
IC25 Lethal Static Renewal 48HR Acute Daphnia magna48-hour minimumreport only (%)all yearTX1
IC25 Lethal Static Renewal 48HR Acute Daphnia magna48-hour minimumreport only (%)all yearTX1
IC25 Lethal Static Renewal 48HR Acute Daphnia magnamonthly average minimumreport only (%)all yearTX1
IC25 Lethal Static Renewal 48HR Acute Daphnia magnamonthly average minimumreport only (%)all yearTX1
IC25 Lethal Static Renewal 48HR Acute Pimephales promelas48-hour minimumreport only (%)all yearTX1
IC25 Lethal Static Renewal 48HR Acute Pimephales promelasmonthly average minimumreport only (%)all yearTX1
Whole effluent toxicity - retest #1single samplereport only (pass=0;fail=1)all yearTXA
Whole effluent toxicity - retest #2single samplereport only (pass=0;fail=1)all yearTXA
LC50 Pass/Fail Static 24Hr Acute D. Pulexsingle samplereport only (pass=0;fail=1)all yearTXA
LC50 Pass/Fail Static 24Hr Acute Pimephales promelassingle samplereport only (pass=0;fail=1)all yearTXA

How strict are these limits?

Cited limits by parameter: Texas's rules and the federal ones.

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Your permit document is the final word. As JSON: /api/v1/permits/TX0113026 · MCP: https://passage-data.com/mcp