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Laporte Rail and Terminal LLC

Industrial Inorganic Chemicals, major discharger, La Porte, Texas. NPDES permit TX0007293, in force until Aug 20, 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 (45 values), outfall 101 form A monthly (8 values), outfall 101 form Q quarterly (1 value), outfall 201 form A monthly (6 values), outfall 301 form A monthly (5 values), outfall TX1 form Q quarterly (28 values), and 3 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
14 values over a limit, 0 required values missing, 0 of 59 reports late

Limits in force (212)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximum≤ 110 deg Fall year001
Oxygen, dissolved [DO]minimum≥ 4 mg/Lall year001
pHminimum≥ 5 SUall year001
pHmaximum≤ 11 SUall year001
Oil & Greasedaily average≤ 549 lb/dall year001
Oil & Greasedaily maximum≤ 824 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≤ 665 lb/dall year001
Nitrogen, ammonia total [as N]daily maximum≤ 1881 lb/dall year001
Nitrogen, Kjeldahl, total [as N]daily average≤ 1053 lb/dall year001
Nitrogen, Kjeldahl, total [as N]daily maximum≤ 2521 lb/dall year001
Carbon, tot organic [TOC]daily maximum≤ 1442 lb/dall year001
Cyanide, free [as free]daily average≤ .007 mg/Lall year001
Cyanide, free [as free]daily maximum≤ .015 mg/Lall year001
Cyanide, free [as free]daily average≤ .874 lb/dall year001
Cyanide, free [as free]daily maximum≤ 1.84 lb/dall year001
Fluoride, total [as F]daily average≤ 806 lb/dall year001
Fluoride, total [as F]daily maximum≤ 1613 lb/dall year001
Fluoride, total [as F]daily maximum≤ 22 mg/Lall year001
Chromium, total [as Cr]daily maximum≤ 1 mg/Lall year001
Chromium, total [as Cr]daily maximum≤ 125 lb/dall year001
Copper, total [as Cu]daily average≤ .037 mg/Lall year001
Copper, total [as Cu]daily maximum≤ .078 mg/Lall year001
Copper, total [as Cu]daily average≤ 4.32 lb/dall year001
Copper, total [as Cu]daily maximum≤ 9.14 lb/dall year001
Manganese, total [as Mn]daily average≤ 1 mg/Lall year001
Manganese, total [as Mn]daily maximum≤ 1.5 mg/Lall year001
Manganese, total [as Mn]daily average≤ 125 lb/dall year001
Manganese, total [as Mn]daily maximum≤ 188 lb/dall year001
Nickel, total [as Ni]daily average≤ .049 mg/Lall year001
Nickel, total [as Ni]daily maximum≤ .165 mg/Lall year001
Nickel, total [as Ni]daily average≤ 6.14 lb/dall year001
Nickel, total [as Ni]daily maximum≤ 20.7 lb/dall year001
Zinc, total [as Zn]daily average≤ .219 mg/Lall year001
Zinc, total [as Zn]daily maximum≤ .463 mg/Lall year001
Zinc, total [as Zn]daily average≤ 24.9 lb/dall year001
Zinc, total [as Zn]daily maximum≤ 52.8 lb/dall year001
Benzo[a]pyrenedaily average≤ .0854 ug/Lall year001
Benzo[a]pyrenedaily maximum≤ .18 ug/Lall year001
Benzo[a]pyrenedaily average≤ .0094 lb/dall year001
Benzo[a]pyrenedaily maximum≤ .0197 lb/dall year001
Benzo[a]anthracenedaily average≤ .854 ug/Lall year001
Benzo[a]anthracenedaily maximum≤ 1.8 ug/Lall year001
Benzo[a]anthracenedaily average≤ .094 lb/dall year001
Benzo[a]anthracenedaily maximum≤ .197 lb/dall year001
Hexachlorobenzenedaily average≤ .0232 ug/Lall year001
Hexachlorobenzenedaily maximum≤ .0491 ug/Lall year001
Hexachlorobenzenedaily average≤ .00254 lb/dall year001
Hexachlorobenzenedaily maximum≤ .00538 lb/dall year001
Flow, in conduit or thru treatment plantdaily average≤ 13.13 MGDall year001
Flow, in conduit or thru treatment plantdaily maximum≤ 19.5 MGDall year001
pH range excursions, > 60 minutesmonthly total≤ 0 occur/moall year001
pH range excursions, monthly total accummonthly total≤ 446 minall year001
BOD, 5-day, 20 deg. Cdaily average≤ 462 lb/dall year101
BOD, 5-day, 20 deg. Cdaily maximum≤ 1228 lb/dall year101
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year101
Solids, total suspendeddaily average≤ 709 lb/dall year101
Solids, total suspendeddaily maximum≤ 2289 lb/dall year101
Carbon, tot organic [TOC]daily average≤ 1487 lb/dall year101
Carbon, tot organic [TOC]daily maximum≤ 2617 lb/dall year101
Carbon tetrachloridedaily average≤ .27 lb/dall year101
Carbon tetrachloridedaily maximum≤ .58 lb/dall year101
1,2-Dichloroethanedaily average≤ 1.03 lb/dall year101
1,2-Dichloroethanedaily maximum≤ 3.2 lb/dall year101
Chloroformdaily average≤ .32 lb/dall year101
Chloroformdaily maximum≤ .7 lb/dall year101
Toluenedaily average≤ .39 lb/dall year101
Toluenedaily maximum≤ 1.22 lb/dall year101
Benzenedaily average≤ .56 lb/dall year101
Benzenedaily maximum≤ 2.07 lb/dall year101
Acenaphthylenedaily average≤ .33 lb/dall year101
Acenaphthylenedaily maximum≤ .9 lb/dall year101
Acenaphthenedaily average≤ .33 lb/dall year101
Acenaphthenedaily maximum≤ .9 lb/dall year101
Acrylonitriledaily average≤ 1.46 lb/dall year101
Acrylonitriledaily maximum≤ 3.68 lb/dall year101
Anthracenedaily average≤ .33 lb/dall year101
Anthracenedaily maximum≤ .9 lb/dall year101
Benzo[k]fluoranthenedaily average≤ .33 lb/dall year101
Benzo[k]fluoranthenedaily maximum≤ .9 lb/dall year101
Chlorobenzenedaily average≤ .23 lb/dall year101
Chlorobenzenedaily maximum≤ .43 lb/dall year101
Chrysenedaily average≤ .33 lb/dall year101
Chrysenedaily maximum≤ .9 lb/dall year101
Diethyl phthalatedaily average≤ 1.23 lb/dall year101
Diethyl phthalatedaily maximum≤ 3.08 lb/dall year101
Dimethyl phthalatedaily average≤ .29 lb/dall year101
Dimethyl phthalatedaily maximum≤ .71 lb/dall year101
Ethylbenzenedaily average≤ .49 lb/dall year101
Ethylbenzenedaily maximum≤ 1.64 lb/dall year101
Fluoranthenedaily average≤ .38 lb/dall year101
Fluoranthenedaily maximum≤ 1.03 lb/dall year101
Fluorenedaily average≤ .33 lb/dall year101
Fluorenedaily maximum≤ .9 lb/dall year101
Hexachlorobutadienedaily average≤ .3 lb/dall year101
Hexachlorobutadienedaily maximum≤ .74 lb/dall year101
Hexachloroethanedaily average≤ .32 lb/dall year101
Hexachloroethanedaily maximum≤ .82 lb/dall year101
Methyl chloride [Chloromethane]daily average≤ 1.31 lb/dall year101
Methyl chloride [Chloromethane]daily maximum≤ 2.89 lb/dall year101
Methylene chloridedaily average≤ .61 lb/dall year101
Methylene chloridedaily maximum≤ 1.35 lb/dall year101
Nitrobenzenedaily average≤ .41 lb/dall year101
Nitrobenzenedaily maximum≤ 1.03 lb/dall year101
Phenanthrenedaily average≤ .33 lb/dall year101
Phenanthrenedaily maximum≤ .9 lb/dall year101
Pyrenedaily average≤ .38 lb/dall year101
Pyrenedaily maximum≤ 1.02 lb/dall year101
Tetrachloroethylenedaily average≤ .33 lb/dall year101
Tetrachloroethylenedaily maximum≤ .85 lb/dall year101
1,1-Dichloroethanedaily average≤ .33 lb/dall year101
1,1-Dichloroethanedaily maximum≤ .9 lb/dall year101
1,1-Dichloroethylenedaily average≤ .24 lb/dall year101
1,1-Dichloroethylenedaily maximum≤ .38 lb/dall year101
1,1,1-Trichloroethanedaily average≤ .32 lb/dall year101
1,1,1-Trichloroethanedaily maximum≤ .82 lb/dall year101
1,1,2-Trichloroethanedaily average≤ .32 lb/dall year101
1,1,2-Trichloroethanedaily maximum≤ .82 lb/dall year101
1,2-Dichlorobenzenedaily average≤ 1.17 lb/dall year101
1,2-Dichlorobenzenedaily maximum≤ 2.48 lb/dall year101
1,2-Dichloropropanedaily average≤ 2.32 lb/dall year101
1,2-Dichloropropanedaily maximum≤ 3.49 lb/dall year101
trans-1,2-Dichloroethylenedaily average≤ .32 lb/dall year101
trans-1,2-Dichloroethylenedaily maximum≤ .82 lb/dall year101
1,2,4-Trichlorobenzenedaily average≤ 1.03 lb/dall year101
1,2,4-Trichlorobenzenedaily maximum≤ 2.13 lb/dall year101
1,3-Dichlorobenzenedaily average≤ .47 lb/dall year101
1,3-Dichlorobenzenedaily maximum≤ .67 lb/dall year101
1,4-Dichlorobenzenedaily average≤ .23 lb/dall year101
1,4-Dichlorobenzenedaily maximum≤ .43 lb/dall year101
2-Chlorophenoldaily average≤ .47 lb/dall year101
2-Chlorophenoldaily maximum≤ 1.49 lb/dall year101
2-Nitrophenoldaily average≤ .62 lb/dall year101
2-Nitrophenoldaily maximum≤ 1.05 lb/dall year101
2,4-Dichlorophenoldaily average≤ .59 lb/dall year101
2,4-Dichlorophenoldaily maximum≤ 1.7 lb/dall year101
2,4-Dimethylphenoldaily average≤ .27 lb/dall year101
2,4-Dimethylphenoldaily maximum≤ .55 lb/dall year101
2,4-Dinitrotoluenedaily average≤ 1.72 lb/dall year101
2,4-Dinitrotoluenedaily maximum≤ 4.33 lb/dall year101
2,4-Dinitrophenoldaily average≤ 1.08 lb/dall year101
2,4-Dinitrophenoldaily maximum≤ 1.87 lb/dall year101
2,6-Dinitrotoluenedaily average≤ 3.87 lb/dall year101
2,6-Dinitrotoluenedaily maximum≤ 9.74 lb/dall year101
4-Nitrophenoldaily average≤ 1.09 lb/dall year101
4-Nitrophenoldaily maximum≤ 1.88 lb/dall year101
4,6-Dinitro-o-cresoldaily average≤ 1.18 lb/dall year101
4,6-Dinitro-o-cresoldaily maximum≤ 4.21 lb/dall year101
Phenoldaily average≤ .23 lb/dall year101
Phenoldaily maximum≤ .39 lb/dall year101
Naphthalenedaily average≤ .33 lb/dall year101
Naphthalenedaily maximum≤ .9 lb/dall year101
Di[2-ethylhexyl] phthalate [DEHP]daily average≤ 1.56 lb/dall year101
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 4.24 lb/dall year101
Di-n-butyl phthalatedaily average≤ .41 lb/dall year101
Di-n-butyl phthalatedaily maximum≤ .87 lb/dall year101
Vinyl chloridedaily average≤ 1.58 lb/dall year101
Vinyl chloridedaily maximum≤ 4.07 lb/dall year101
Trichloroethylenedaily average≤ .32 lb/dall year101
Trichloroethylenedaily maximum≤ .82 lb/dall year101
Flow, in conduit or thru treatment plantdaily average≤ 1.91 MGDall year101
Flow, in conduit or thru treatment plantdaily maximum≤ 5.5 MGDall year101
1,3-Dichloropropylenedaily average≤ .44 lb/dall year101
1,3-Dichloropropylenedaily maximum≤ .67 lb/dall year101
3,4-Benzofluoranthenedaily average≤ .35 lb/dall year101
3,4-Benzofluoranthenedaily maximum≤ .93 lb/dall year101
Chloroethanedaily average≤ 1.58 lb/dall year101
Chloroethanedaily maximum≤ 4.07 lb/dall year101
Solids, total suspendeddaily average≤ 30 mg/Lall year201
Solids, total suspendeddaily maximum≤ 100 mg/Lall year201
Carbon, tot organic [TOC]daily average≤ 12 mg/Lall year201
Carbon, tot organic [TOC]daily maximum≤ 24 mg/Lall year201
Flow, in conduit or thru treatment plantdaily average≤ 11.22 MGDall year201
Flow, in conduit or thru treatment plantdaily maximum≤ 14 MGDall year201
Flow, in conduit or thru treatment plantdaily average≤ .06 MGDall year301
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year301
Chlorine, total residualmonthly minimum≥ .5 mg/Lall year301
Enterococcidaily average≤ 35 CFU/100mLall year301
Enterococcidaily maximum≤ 104 CFU/100mLall year301
Whole effluent toxicity - retest #17-day 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 #27-day minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7-day minimumreport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)monthly average minimumreport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina7-day minimumreport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllinamonthly average minimumreport only (pass=0;fail=1)all yearTX1
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7-day minimumreport only (%)all yearTX1
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)monthly average minimumreport only (%)all yearTX1
NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina7-day minimumreport only (%)all yearTX1
NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllinamonthly average minimumreport only (%)all yearTX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7-day minimumreport only (%)all yearTX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)monthly average minimumreport only (%)all yearTX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7-day minimumreport only (%)all yearTX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinamonthly average minimumreport only (%)all yearTX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7-day minimumreport only (pass=0;fail=1)all yearTX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)monthly average minimumreport only (pass=0;fail=1)all yearTX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7-day minimumreport only (pass=0;fail=1)all yearTX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinamonthly average minimumreport only (pass=0;fail=1)all yearTX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7-day minimumreport only (%)all yearTX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)monthly average minimumreport only (%)all yearTX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina7-day minimumreport only (%)all yearTX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllinamonthly average minimumreport only (%)all yearTX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7-day minimumreport only (%)all yearTX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)monthly average minimumreport only (%)all yearTX1
LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina7-day minimumreport only (%)all yearTX1
LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllinamonthly 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 Americamysis bahia (formerly Mysidopsis bahia)single samplereport only (pass=0;fail=1)all yearTXA
LC50 Pass/Fail Static 24Hr Acute Menidia beryllinasingle samplereport only (pass=0;fail=1)all yearTXA

New limits from Sep 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Temperature, water deg. fahrenheit, daily maximum106 deg Ftighter97 deg F (11 values)0.915×

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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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TX0007293 · MCP: https://passage-data.com/mcp