CELANESE LTD — NPDES permit SC0038229: limits, due date and EPA's record

NPDES permit SC0038229 · Major NON-POTW · administratively continued, expires 2025-09-30 · EPA's file as of 2026-09-19

This permit expired on 2025-09-30 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

Reporting

Reports are due about 30 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (22)

Outfall	Parameter	Statistic	Limit	Months
002	BOD, 5-day, 20 deg. C	MO AVG	<= 28 mg/L	all year
002	BOD, 5-day, 20 deg. C	DAILY MX	<= 76 mg/L	all year
002	BOD, 5-day, 20 deg. C	MO AVG	<= 16 lb/d	all year
002	BOD, 5-day, 20 deg. C	DAILY MX	<= 42 lb/d	all year
002	pH	INST MIN	>= 6 SU	all year
002	pH	INST MAX	<= 8.5 SU	all year
002	Solids, total suspended	MO AVG	<= 43 mg/L	all year
002	Solids, total suspended	DAILY MX	<= 140 mg/L	all year
002	Solids, total suspended	MO AVG	<= 27 lb/d	all year
002	Solids, total suspended	DAILY MX	<= 85 lb/d	all year
002	Phosphorus, total [as P]	MO AVG	report only	all year
002	Phosphorus, total [as P]	DAILY MX	report only	all year
002	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
002	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
002	Chlorine, total residual	MO AVG	<= .5 mg/L	all year
002	Chlorine, total residual	DAILY MX	<= 1 mg/L	all year
002	1,4-Dioxane	MO AVG	report only	all year
002	1,4-Dioxane	DAILY MX	report only	all year
002	LC50 Static 48Hr Acute Ceriodaphnia dubia	DAILY MN	report only	all year
002	%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia	MO AVG	<= 25 %	all year
002	%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia	DAILY MX	<= 40 %	all year
002	IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia	DAILY MN	report only	all year