EXXON MOBIL REFINING & SUPPLY COMPANY

NPDES permit LA0065056 · Minor NON-POTW · effective, expires 2029-04-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

0values over a limit
0required values missing, on 0 form(s)
0of 16 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among LA permits in EPA's filings — check your permit).

Limits in force (25)

OutfallParameterStatisticLimitMonths
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedDAILY MX <= 50 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Carbon, tot organic [TOC]DAILY MX <= 50 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
02BOxygen demand, chem. [high level] [COD]DAILY MX <= 250 mg/L all year
02BOxygen demand, chem. [high level] [COD]DAILY MX <= 250 mg/L all year
02BpHINST MIN >= 6 SU all year
02BpHINST MIN >= 6 SU all year
02BpHINST MAX <= 9 SU all year
02BpHINST MAX <= 9 SU all year
02BOil & GreaseDAILY MX <= 15 mg/L all year
02BOil & GreaseDAILY MX <= 15 mg/L all year
02BFlow, in conduit or thru treatment plantMO AVG report only all year
02BFlow, in conduit or thru treatment plantMO AVG report only all year
02BFlow, in conduit or thru treatment plantDAILY MX report only all year
02BFlow, in conduit or thru treatment plantDAILY MX report only all year
101BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
101BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
101Flow, in conduit or thru treatment plantMO AVG report only all year
101Flow, in conduit or thru treatment plantDAILY MX report only all year
101Coliform, fecal generalMOAV GEO <= 200 #/100mL all year
101Coliform, fecal generalDAILY MX <= 400 #/100mL 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