TWIN BROTHERS MARINE LLC

NPDES permit LA0124257 · Minor NON-POTW · effective, expires 2029-12-31 · 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

1values over a limit
0required values missing, on 0 form(s)
0of 48 forms filed late

Last period with anything received: 2026-06-30. Most often over: Solids, total suspended (1).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (85)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001EnterococciMOAV GEO <= 35 #/100mL all year
001EnterococciDAILY MX <= 135 #/100mL all year
001Coliform, fecal generalMOAV GEO <= 200 #/100mL all year
001Coliform, fecal generalDAILY MX <= 400 #/100mL all year
002BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
002BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
002pHINST MIN >= 6 SU all year
002pHINST MAX <= 9 SU all year
002Solids, total suspendedMO AVG <= 30 mg/L all year
002Solids, total suspendedDAILY MX <= 45 mg/L all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002EnterococciMOAV GEO <= 35 #/100mL all year
002EnterococciDAILY MX <= 135 #/100mL all year
002Coliform, fecal generalMOAV GEO <= 200 #/100mL all year
002Coliform, fecal generalDAILY MX <= 400 #/100mL all year
003BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
003BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
003pHINST MIN >= 6 SU all year
003pHINST MAX <= 9 SU all year
003Solids, total suspendedMO AVG <= 30 mg/L all year
003Solids, total suspendedDAILY MX <= 45 mg/L all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003EnterococciMOAV GEO <= 35 #/100mL all year
003EnterococciDAILY MX <= 135 #/100mL all year
003Coliform, fecal generalMOAV GEO <= 200 #/100mL all year
003Coliform, fecal generalDAILY MX <= 400 #/100mL all year
004BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
004BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
004pHINST MIN >= 6 SU all year
004pHINST MAX <= 9 SU all year
004Solids, total suspendedMO AVG <= 30 mg/L all year
004Solids, total suspendedDAILY MX <= 45 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004EnterococciMOAV GEO <= 35 #/100mL all year
004EnterococciDAILY MX <= 135 #/100mL all year
004Coliform, fecal generalMOAV GEO <= 200 #/100mL all year
004Coliform, fecal generalDAILY MX <= 400 #/100mL all year
005BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
005BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
005pHINST MIN >= 6 SU all year
005pHINST MAX <= 9 SU all year
005Solids, total suspendedMO AVG <= 30 mg/L all year
005Solids, total suspendedDAILY MX <= 45 mg/L all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005EnterococciMOAV GEO <= 35 #/100mL all year
005EnterococciDAILY MX <= 135 #/100mL all year
005Coliform, fecal generalMOAV GEO <= 200 #/100mL all year
005Coliform, fecal generalDAILY MX <= 400 #/100mL all year
006Oxygen demand, chem. [high level] [COD]MO AVG <= 200 mg/L all year
006Oxygen demand, chem. [high level] [COD]DAILY MX <= 300 mg/L all year
006pHINST MIN >= 6 SU all year
006pHINST MAX <= 9 SU all year
006Solids, total suspendedDAILY MX <= 45 mg/L all year
006Oil & GreaseDAILY MX <= 15 mg/L all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
007pHINST MIN >= 6 SU all year
007pHINST MAX <= 9 SU all year
007Solids, total suspendedDAILY MX <= 90 mg/L all year
007Solids, total suspendedDAILY MX <= 90 mg/L all year
007Oil & GreaseDAILY MX <= 15 mg/L all year
007Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
007Lead, total [as Pb]DAILY MX <= 50 ug/L all year
007BenzeneDAILY MX <= 50 ug/L all year
007BTEXDAILY MX <= 250 ug/L all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
008Oxygen demand, chem. [high level] [COD]DAILY MX <= 250 mg/L all year
008pHINST MIN >= 6 SU all year
008pHINST MAX <= 9 SU all year
008Oil & GreaseDAILY MX <= 15 mg/L all year
008Flow, in conduit or thru treatment plantMO AVG report only all year
008Flow, in conduit or thru treatment plantDAILY MX 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