UNION ELEC STEEL CORP — NPDES permit PA0002879: limits, due date and EPA's record

NPDES permit PA0002879 · Minor NON-POTW · effective, expires 2028-12-31 · EPA's file as of 2026-09-19

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

Last period with anything received: 2026-06-30. Most often over: Aluminum, total [as Al] (3).

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 (37)

Outfall	Parameter	Statistic	Limit	Months
002	Solids, total suspended	DAILY MX	<= 100 mg/L	all year
002	Oil & Grease	DAILY MX	report only	all year
002	Nitrogen, total [as N]	DAILY MX	report only	all year
002	Phosphorus, total [as P]	DAILY MX	report only	all year
002	Copper, total [as Cu]	DAILY MX	report only	all year
002	Iron, total [as Fe]	MO AVG	report only	all year
002	Iron, total [as Fe]	DAILY MX	report only	all year
002	Lead, total [as Pb]	DAILY MX	report only	all year
002	Manganese, total [as Mn]	MO AVG	<= 1 mg/L	all year
002	Manganese, total [as Mn]	DAILY MX	<= 2 mg/L	all year
002	Zinc, total [as Zn]	DAILY MX	report only	all year
002	Aluminum, total [as Al]	MO AVG	<= .75 mg/L	all year
002	Aluminum, total [as Al]	DAILY MX	<= .75 mg/L	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
003	Solids, total suspended	DAILY MX	<= 100 mg/L	all year
003	Oil & Grease	DAILY MX	report only	all year
003	Nitrogen, total [as N]	DAILY MX	report only	all year
003	Phosphorus, total [as P]	DAILY MX	report only	all year
003	Copper, total [as Cu]	DAILY MX	report only	all year
003	Iron, total [as Fe]	DAILY MX	report only	all year
003	Lead, total [as Pb]	DAILY MX	report only	all year
003	Manganese, total [as Mn]	DAILY MX	<= 2 mg/L	all year
003	Zinc, total [as Zn]	DAILY MX	report only	all year
003	Aluminum, total [as Al]	DAILY MX	<= .75 mg/L	all year
003	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
004	Solids, total suspended	DAILY MX	<= 100 mg/L	all year
004	Oil & Grease	DAILY MX	report only	all year
004	Nitrogen, total [as N]	DAILY MX	report only	all year
004	Phosphorus, total [as P]	DAILY MX	report only	all year
004	Copper, total [as Cu]	DAILY MX	report only	all year
004	Iron, total [as Fe]	DAILY MX	report only	all year
004	Lead, total [as Pb]	DAILY MX	report only	all year
004	Manganese, total [as Mn]	DAILY MX	<= 2 mg/L	all year
004	Zinc, total [as Zn]	DAILY MX	report only	all year
004	Aluminum, total [as Al]	DAILY MX	<= .75 mg/L	all year
004	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year