MAJOR OAK POWER LLC

NPDES permit TX0101168 · Major NON-POTW · effective, expires 2029-08-09 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 56 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 1 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (65)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX <= 50 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Flow, in conduit or thru treatment plantDAILY AV report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
002Oxygen demand, chem. [high level] [COD]DAILY MX <= 150 mg/L all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedDAILY AV <= 30 mg/L all year
002Solids, total suspendedDAILY MX <= 100 mg/L all year
002Solids, total suspendedDAILY AV <= 751 lb/d all year
002Solids, total suspendedDAILY MX <= 2503 lb/d all year
002Oil & GreaseDAILY AV <= 15 mg/L all year
002Oil & GreaseDAILY MX <= 20 mg/L all year
002Oil & GreaseDAILY AV <= 375 lb/d all year
002Oil & GreaseDAILY MX <= 501 lb/d all year
002Aluminum, total [as Al]DAILY AV <= .834 mg/L all year
002Aluminum, total [as Al]DAILY MX <= 1.765 mg/L 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, free availableDAILY AV <= .2 mg/L all year
002Chlorine, free availableDAILY MX <= .5 mg/L all year
002Flow [dry weather]DAILY AV report only all year
002Flow [dry weather]DAILY MX <= 3 MGD all year
002Solids, total dissolvedDAILY AV <= 2959 mg/L all year
002Solids, total dissolvedDAILY MX <= 6260 mg/L all year
003Oxygen demand, chem. [high level] [COD]DAILY MX <= 150 mg/L all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Selenium, total [as Se]DAILY MX <= .1 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
004Oxygen demand, chem. [high level] [COD]DAILY MX <= 150 mg/L all year
004pHMINIMUM >= 6 SU all year
004pHMAXIMUM <= 9 SU all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Selenium, total [as Se]DAILY MX <= .1 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
TX2Whole effluent toxicity - retest #148HR MIN report only all year
TX2Whole effluent toxicity - retest #1MO AV MN report only all year
TX2Whole effluent toxicity - retest #248HR MIN report only all year
TX2Whole effluent toxicity - retest #2MO AV MN report only all year
TX2Whole Effluent Toxicity [WET] - D. pulex48HR MIN >= 100 % all year
TX2Whole Effluent Toxicity [WET] - D. pulexMO AV MN >= 100 % all year
TX2Whole Effluent Toxicity [WET] - P. promelas48HR MIN >= 100 % all year
TX2Whole Effluent Toxicity [WET] - P. promelasMO AV MN >= 100 % all year
TX2Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48HR MIN report only all year
TX2Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexMO AV MN report only all year
TX2LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48HR MIN report only all year
TX2LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelasMO AV MN report only all year
TX2NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48HR MIN report only all year
TX2NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulexMO AV MN report only all year
TX2NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48HR MIN report only all year
TX2NOAEC Lethal Static Renewal 48Hr acute Pimephales promelasMO AV MN report only all year
TX2LOAEC Lethal Static Renewal 48HR Acute Daphnia pulex48HR MIN report only all year
TX2LOAEC Lethal Static Renewal 48HR Acute Daphnia pulexMO AV MN report only all year
TX2LOAEC Lethal Survival Static Renewal 48Hr Acute Pimephales promelas48HR MIN report only all year
TX2LOAEC Lethal Survival Static Renewal 48Hr Acute Pimephales promelasMO AV MN report only all year
TXBWhole effluent toxicity - retest #1SINGSAMP report only all year
TXBWhole effluent toxicity - retest #2SINGSAMP report only all year
TXBLC50 Pass/Fail Static 24Hr Acute D. PulexSINGSAMP report only all year
TXBLC50 Pass/Fail Static 24Hr Acute Pimephales promelasSINGSAMP report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states