FREEPORT LNG DEVELOPMENT LP

NPDES permit TX0127566 · Minor NON-POTW · effective, expires 2029-02-28 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

2values over a limit
0required values missing, on 0 form(s)
0of 106 forms filed late

Last period with anything received: 2026-07-31. Most often over: Zinc, total [as Zn] (1), Copper, total [as Cu] (1).

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among TX permits in EPA's filings — check your permit).

Limits in force (221)

OutfallParameterStatisticLimitMonths
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002Oil & GreaseDAILY AV <= 10 mg/L all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Oil & GreaseDAILY AV report only all year
002Oil & GreaseDAILY MX report only all year
002Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
002Zinc, total [as Zn]DAILY AV report only all year
002Zinc, total [as Zn]DAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY AV report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Chlorine, total residualMO MAX <= .019 mg/L all year
003pHMINIMUM >= 6.5 SU all year
003pHMAXIMUM <= 9 SU all year
003Oil & GreaseDAILY AV <= 10 mg/L all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Oil & GreaseDAILY AV report only all year
003Oil & GreaseDAILY MX report only all year
003Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
003Flow, in conduit or thru treatment plantDAILY AV report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
004pHMINIMUM >= 6.5 SU all year
004pHMAXIMUM <= 9 SU all year
004Solids, total suspendedDAILY AV <= 45 mg/L all year
004Solids, total suspendedDAILY MX <= 45 mg/L all year
004Solids, total suspendedDAILY AV report only all year
004Solids, total suspendedDAILY MX report only all year
004Oil & GreaseDAILY AV <= 10 mg/L all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Oil & GreaseDAILY AV report only all year
004Oil & GreaseDAILY MX report only all year
004Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
004Flow, in conduit or thru treatment plantDAILY AV report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Chlorine, total residualMO MAX <= .019 mg/L all year
005pHMINIMUM >= 6.5 SU all year
005pHMAXIMUM <= 9 SU all year
005Oil & GreaseDAILY AV <= 10 mg/L all year
005Oil & GreaseDAILY MX <= 15 mg/L all year
005Oil & GreaseDAILY AV report only all year
005Oil & GreaseDAILY MX report only all year
005Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
005Flow, in conduit or thru treatment plantDAILY AV report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
006pHMINIMUM >= 6.5 SU all year
006pHMAXIMUM <= 9 SU all year
006Solids, total suspendedDAILY AV <= 45 mg/L all year
006Solids, total suspendedDAILY MX <= 45 mg/L all year
006Oil & GreaseDAILY AV <= 10 mg/L all year
006Oil & GreaseDAILY MX <= 15 mg/L all year
006Oil & GreaseDAILY AV report only all year
006Oil & GreaseDAILY MX report only all year
006Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
006Copper, total [as Cu]DAILY AV <= .024 mg/L all year
006Copper, total [as Cu]DAILY MX <= .051 mg/L all year
006Thallium, total [as Tl]DAILY AV report only all year
006Thallium, total [as Tl]DAILY MX report only all year
006Zinc, total [as Zn]DAILY AV <= .255 mg/L all year
006Zinc, total [as Zn]DAILY MX <= .54 mg/L all year
006Flow, in conduit or thru treatment plantDAILY AV report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
007pHMINIMUM >= 6.5 SU all year
007pHMAXIMUM <= 9 SU all year
007Oil & GreaseDAILY AV <= 10 mg/L all year
007Oil & GreaseDAILY MX <= 15 mg/L all year
007Oil & GreaseDAILY AV report only all year
007Oil & GreaseDAILY MX report only all year
007Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
007Copper, total [as Cu]DAILY AV report only all year
007Copper, total [as Cu]DAILY MX report only all year
007Zinc, total [as Zn]DAILY AV report only all year
007Zinc, total [as Zn]DAILY MX report only all year
007Flow, in conduit or thru treatment plantDAILY AV report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
007Chlorine, total residualMO MAX <= .019 mg/L all year
008pHMINIMUM >= 6.5 SU all year
008pHMAXIMUM <= 9 SU all year
008Oil & GreaseDAILY AV <= 10 mg/L all year
008Oil & GreaseDAILY MX <= 15 mg/L all year
008Oil & GreaseDAILY AV report only all year
008Oil & GreaseDAILY MX report only all year
008Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
008Flow, in conduit or thru treatment plantDAILY AV report only all year
008Flow, in conduit or thru treatment plantDAILY MX report only all year
009pHMINIMUM >= 6.5 SU all year
009pHMAXIMUM <= 9 SU all year
009Oil & GreaseDAILY AV <= 10 mg/L all year
009Oil & GreaseDAILY MX <= 15 mg/L all year
009Oil & GreaseDAILY AV report only all year
009Oil & GreaseDAILY MX report only all year
009Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
009Zinc, total [as Zn]DAILY AV report only all year
009Zinc, total [as Zn]DAILY MX report only all year
009Flow, in conduit or thru treatment plantDAILY AV report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
TX5Whole effluent toxicity - retest #17 DA MIN report only all year
TX5Whole effluent toxicity - retest #1MO AV MN report only all year
TX5Whole effluent toxicity - retest #27 DA MIN report only all year
TX5Whole effluent toxicity - retest #2MO AV MN report only all year
TX5Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX5Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX5Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX5Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX5NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX5NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX5NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX5NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX5NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX5NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX5NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX5NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX5Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX5Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX5Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX5Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX5LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX5LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX5LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX5LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX5LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX5LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX5LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX5LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX7Whole effluent toxicity - retest #17 DA MIN report only all year
TX7Whole effluent toxicity - retest #1MO AV MN report only all year
TX7Whole effluent toxicity - retest #27 DA MIN report only all year
TX7Whole effluent toxicity - retest #2MO AV MN report only all year
TX7Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX7Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX7Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX7Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX7NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX7NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX7NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX7NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX7NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX7NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX7NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX7NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX7Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX7Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX7Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX7Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX7LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX7LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX7LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX7LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX7LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX7LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX7LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX7LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX8Whole effluent toxicity - retest #17 DA MIN report only all year
TX8Whole effluent toxicity - retest #1MO AV MN report only all year
TX8Whole effluent toxicity - retest #27 DA MIN report only all year
TX8Whole effluent toxicity - retest #2MO AV MN report only all year
TX8Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX8Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX8Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX8Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX8NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX8NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX8NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX8NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX8NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX8NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX8NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX8NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX8Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX8Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX8Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX8Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX8LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX8LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX8LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX8LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX8LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX8LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX8LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX8LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX9Whole effluent toxicity - retest #17 DA MIN report only all year
TX9Whole effluent toxicity - retest #1MO AV MN report only all year
TX9Whole effluent toxicity - retest #27 DA MIN report only all year
TX9Whole effluent toxicity - retest #2MO AV MN report only all year
TX9Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX9Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX9Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX9Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX9NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX9NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX9NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX9NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX9NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX9NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX9NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX9NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX9Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX9Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX9Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX9Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX9LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)7 DA MIN report only all year
TX9LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)MO AV MN report only all year
TX9LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX9LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TX9LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)7 DA MIN report only all year
TX9LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)MO AV MN report only all year
TX9LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina7 DA MIN report only all year
TX9LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllinaMO AV MN report only all year
TXELC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)SINGSAMP report only all year
TXELC50 Pass/Fail Static 24Hr Acute Menidia beryllinaSINGGRAB report only all year
TXGWhole effluent toxicity - retest #1SINGSAMP report only all year
TXGWhole effluent toxicity - retest #2SINGSAMP report only all year
TXGLC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)SINGSAMP report only all year
TXGLC50 Pass/Fail Static 24Hr Acute Menidia beryllinaSINGGRAB report only all year
TXHWhole effluent toxicity - retest #1SINGSAMP report only all year
TXHWhole effluent toxicity - retest #2SINGSAMP report only all year
TXHLC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)SINGSAMP report only all year
TXHLC50 Pass/Fail Static 24Hr Acute Menidia beryllinaSINGGRAB report only all year
TXIWhole effluent toxicity - retest #1SINGSAMP report only all year
TXIWhole effluent toxicity - retest #2SINGSAMP report only all year
TXILC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)SINGSAMP report only all year
TXILC50 Pass/Fail Static 24Hr Acute Menidia beryllinaSINGGRAB report only all year

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