GULF COAST FRACTIONATORS — NPDES permit TX0085928: limits, due date and EPA's record

NPDES permit TX0085928 · Minor NON-POTW · effective, expires 2028-10-05 · EPA's file as of 2026-09-19

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

Last period with anything received: 2026-07-31. Most often over: Flow, in conduit or thru treatment plant (15), BOD, 5-day, 20 deg. C (7), Carbon, tot organic [TOC] (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 (17)

Outfall	Parameter	Statistic	Limit	Months
001	pH	MINIMUM	>= 6.5 SU	all year
001	pH	MAXIMUM	<= 9 SU	all year
001	Oil & Grease	DAILY MX	<= 15 mg/L	all year
001	Carbon, tot organic [TOC]	DAILY MX	<= 75 mg/L	all year
001	Flow, in conduit or thru treatment plant	DAILY AV	<= .3967 MGD	all year
001	Flow, in conduit or thru treatment plant	DAILY MX	<= .5577 MGD	all year
001	Flow, in conduit or thru treatment plant	DAILY AV	report only	all year
001	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
001	Chlorine, total residual	DAILY MX	report only	all year
101	BOD, 5-day, 20 deg. C	DAILY AV	<= 20 mg/L	all year
101	BOD, 5-day, 20 deg. C	DAILY MX	<= 30 mg/L	all year
101	BOD, 5-day, 20 deg. C	DAILY AV	<= 31.02 lb/d	all year
101	BOD, 5-day, 20 deg. C	DAILY MX	<= 46.54 lb/d	all year
101	pH	MINIMUM	>= 6 SU	all year
101	pH	MAXIMUM	<= 9 SU	all year
101	Flow, in conduit or thru treatment plant	DAILY AV	<= .19344 MGD	all year
101	Flow, in conduit or thru treatment plant	DAILY MX	<= .3545 MGD	all year