CLEVELAND CLIFFS STEELTON LLC — NPDES permit PA0008303: limits, due date and EPA's record

NPDES permit PA0008303 · Major NON-POTW · effective, expires 2030-04-30 · EPA's file as of 2026-09-19

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

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 (207)

Outfall	Parameter	Statistic	Limit	Months
002	Temperature, water deg. fahrenheit	DAILY MX	<= 105 deg F	Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002	Temperature, water deg. fahrenheit	DAILY MX	<= 104 deg F	Dec
002	pH	DAILY MN	>= 6 SU	all year
002	pH	DAILY MX	report only	all year
002	pH	DAILY MX	<= 9 SU	all year
002	Solids, total suspended	MO AVG	report only	all year
002	Solids, total suspended	DAILY MX	report only	all year
002	Solids, total suspended	DAILY MX	report only	all year
002	Solids, total suspended	MO AVG	report only	all year
002	Solids, total suspended	DAILY MX	report only	all year
002	Solids, total suspended	MO AVG	<= 30 mg/L	all year
002	Solids, total suspended	DAILY MX	<= 60 mg/L	all year
002	Solids, total suspended	MO AVG	report only	all year
002	Solids, total suspended	DAILY MX	report only	all year
002	Oil & Grease	MO AVG	report only	all year
002	Oil & Grease	DAILY MX	report only	all year
002	Oil & Grease	DAILY MX	report only	all year
002	Oil & Grease	MO AVG	report only	all year
002	Oil & Grease	DAILY MX	report only	all year
002	Oil & Grease	MO AVG	<= 10 mg/L	all year
002	Oil & Grease	DAILY MX	<= 15 mg/L	all year
002	Oil & Grease	MO AVG	report only	all year
002	Oil & Grease	DAILY MX	report only	all year
002	Nitrogen, total [as N]	DAILY MX	report only	all year
002	Nitrogen, total [as N]	DAILY MX	report only	all year
002	Nitrogen, total [as N]	DAILY MX	report only	all year
002	Nitrogen, total [as N]	DAILY MX	report only	all year
002	Nitrogen, total [as N]	DAILY MX	report only	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
002	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
002	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
002	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
002	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
002	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
002	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
002	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
002	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
002	Phosphorus, total [as P]	DAILY MX	report only	all year
002	Phosphorus, total [as P]	DAILY MX	report only	all year
002	Phosphorus, total [as P]	DAILY MX	report only	all year
002	Phosphorus, total [as P]	DAILY MX	report only	all year
002	Phosphorus, total [as P]	DAILY MX	report only	all year
002	Copper, total [as Cu]	MO AVG	report only	all year
002	Copper, total [as Cu]	DAILY MX	report only	all year
002	Copper, total [as Cu]	DAILY MX	report only	all year
002	Copper, total [as Cu]	MO AVG	report only	all year
002	Copper, total [as Cu]	DAILY MX	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	Zinc, total [as Zn]	DAILY MX	report only	all year
002	Aluminum, total [as Al]	MO AVG	report only	all year
002	Aluminum, total [as Al]	DAILY MX	report only	all year
002	Aluminum, total [as Al]	DAILY MX	report only	all year
002	Aluminum, total [as Al]	MO AVG	report only	all year
002	Aluminum, total [as Al]	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	<= .15 mg/L	all year
002	Chlorine, total residual	INST MAX	<= .49 mg/L	all year
005	pH	DAILY MX	report only	all year
005	Solids, total suspended	DAILY MX	report only	all year
005	Oil & Grease	DAILY MX	report only	all year
005	Nitrogen, total [as N]	DAILY MX	report only	all year
005	Phosphorus, total [as P]	DAILY MX	report only	all year
005	Copper, total [as Cu]	DAILY MX	report only	all year
005	Iron, total [as Fe]	DAILY MX	report only	all year
005	Lead, total [as Pb]	DAILY MX	report only	all year
005	Zinc, total [as Zn]	DAILY MX	report only	all year
005	Aluminum, total [as Al]	DAILY MX	report only	all year
008	pH	DAILY MX	report only	all year
008	Solids, total suspended	DAILY MX	report only	all year
008	Oil & Grease	DAILY MX	report only	all year
008	Nitrogen, total [as N]	DAILY MX	report only	all year
008	Phosphorus, total [as P]	DAILY MX	report only	all year
008	Copper, total [as Cu]	DAILY MX	report only	all year
008	Iron, total [as Fe]	DAILY MX	report only	all year
008	Lead, total [as Pb]	DAILY MX	report only	all year
008	Zinc, total [as Zn]	DAILY MX	report only	all year
008	Aluminum, total [as Al]	DAILY MX	report only	all year
015	pH	DAILY MX	report only	all year
015	Solids, total suspended	DAILY MX	report only	all year
015	Oil & Grease	DAILY MX	report only	all year
015	Nitrogen, total [as N]	DAILY MX	report only	all year
015	Phosphorus, total [as P]	DAILY MX	report only	all year
015	Copper, total [as Cu]	DAILY MX	report only	all year
015	Iron, total [as Fe]	DAILY MX	report only	all year
015	Lead, total [as Pb]	DAILY MX	report only	all year
015	Zinc, total [as Zn]	DAILY MX	report only	all year
015	Aluminum, total [as Al]	DAILY MX	report only	all year
102	pH	DAILY MN	>= 6 SU	all year
102	pH	DAILY MX	<= 9 SU	all year
102	Solids, total suspended	MO AVG	report only	all year
102	Solids, total suspended	DAILY MX	report only	all year
102	Solids, total suspended	MO AVG	report only	all year
102	Solids, total suspended	DAILY MX	report only	all year
102	Solids, total suspended	MO AVG	report only	all year
102	Solids, total suspended	DAILY MX	report only	all year
102	Solids, total suspended	MO AVG	<= 1074 lb/d	all year
102	Solids, total suspended	DAILY MX	<= 2876 lb/d	all year
102	Oil & Grease	MO AVG	report only	all year
102	Oil & Grease	DAILY MX	report only	all year
102	Oil & Grease	MO AVG	report only	all year
102	Oil & Grease	DAILY MX	report only	all year
102	Oil & Grease	MO AVG	report only	all year
102	Oil & Grease	DAILY MX	report only	all year
102	Oil & Grease	MO AVG	<= 244 lb/d	all year
102	Oil & Grease	DAILY MX	<= 645 lb/d	all year
102	Lead, total [as Pb]	MO AVG	report only	all year
102	Lead, total [as Pb]	DAILY MX	report only	all year
102	Lead, total [as Pb]	MO AVG	report only	all year
102	Lead, total [as Pb]	DAILY MX	report only	all year
102	Lead, total [as Pb]	MO AVG	report only	all year
102	Lead, total [as Pb]	DAILY MX	report only	all year
102	Lead, total [as Pb]	MO AVG	report only	all year
102	Lead, total [as Pb]	DAILY MX	report only	all year
102	Zinc, total [as Zn]	MO AVG	report only	all year
102	Zinc, total [as Zn]	DAILY MX	report only	all year
102	Zinc, total [as Zn]	MO AVG	report only	all year
102	Zinc, total [as Zn]	DAILY MX	report only	all year
102	Zinc, total [as Zn]	MO AVG	report only	all year
102	Zinc, total [as Zn]	DAILY MX	report only	all year
102	Zinc, total [as Zn]	MO AVG	report only	all year
102	Zinc, total [as Zn]	DAILY MX	report only	all year
102	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
102	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
112	pH	DAILY MN	>= 6 SU	all year
112	pH	DAILY MX	<= 9 SU	all year
112	Solids, total suspended	MO AVG	report only	all year
112	Solids, total suspended	DAILY MX	report only	all year
112	Solids, total suspended	MO AVG	report only	all year
112	Solids, total suspended	DAILY MX	report only	all year
112	Solids, total suspended	MO AVG	report only	all year
112	Solids, total suspended	DAILY MX	report only	all year
112	Solids, total suspended	MO AVG	report only	all year
112	Solids, total suspended	DAILY MX	report only	all year
112	Oil & Grease	MO AVG	report only	all year
112	Oil & Grease	DAILY MX	report only	all year
112	Oil & Grease	MO AVG	report only	all year
112	Oil & Grease	DAILY MX	report only	all year
112	Oil & Grease	MO AVG	report only	all year
112	Oil & Grease	DAILY MX	report only	all year
112	Oil & Grease	MO AVG	report only	all year
112	Oil & Grease	DAILY MX	report only	all year
112	Lead, total [as Pb]	MO AVG	report only	all year
112	Lead, total [as Pb]	DAILY MX	report only	all year
112	Lead, total [as Pb]	MO AVG	report only	all year
112	Lead, total [as Pb]	DAILY MX	report only	all year
112	Lead, total [as Pb]	MO AVG	report only	all year
112	Lead, total [as Pb]	DAILY MX	report only	all year
112	Lead, total [as Pb]	MO AVG	<= .19 lb/d	all year
112	Lead, total [as Pb]	DAILY MX	<= .56 lb/d	all year
112	Zinc, total [as Zn]	MO AVG	report only	all year
112	Zinc, total [as Zn]	DAILY MX	report only	all year
112	Zinc, total [as Zn]	MO AVG	report only	all year
112	Zinc, total [as Zn]	DAILY MX	report only	all year
112	Zinc, total [as Zn]	MO AVG	report only	all year
112	Zinc, total [as Zn]	DAILY MX	report only	all year
112	Zinc, total [as Zn]	MO AVG	<= .28 lb/d	all year
112	Zinc, total [as Zn]	DAILY MX	<= .84 lb/d	all year
112	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
112	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
122	pH	DAILY MN	>= 6 SU	all year
122	pH	DAILY MX	<= 9 SU	all year
122	Solids, total suspended	MO AVG	report only	all year
122	Solids, total suspended	DAILY MX	report only	all year
122	Solids, total suspended	MO AVG	report only	all year
122	Solids, total suspended	DAILY MX	report only	all year
122	Solids, total suspended	MO AVG	report only	all year
122	Solids, total suspended	DAILY MX	report only	all year
122	Solids, total suspended	MO AVG	report only	all year
122	Solids, total suspended	DAILY MX	report only	all year
122	Lead, total [as Pb]	MO AVG	report only	all year
122	Lead, total [as Pb]	DAILY MX	report only	all year
122	Lead, total [as Pb]	MO AVG	report only	all year
122	Lead, total [as Pb]	DAILY MX	report only	all year
122	Lead, total [as Pb]	MO AVG	report only	all year
122	Lead, total [as Pb]	DAILY MX	report only	all year
122	Lead, total [as Pb]	MO AVG	<= .2 lb/d	all year
122	Lead, total [as Pb]	DAILY MX	<= .6 lb/d	all year
122	Zinc, total [as Zn]	MO AVG	report only	all year
122	Zinc, total [as Zn]	DAILY MX	report only	all year
122	Zinc, total [as Zn]	MO AVG	report only	all year
122	Zinc, total [as Zn]	DAILY MX	report only	all year
122	Zinc, total [as Zn]	MO AVG	report only	all year
122	Zinc, total [as Zn]	DAILY MX	report only	all year
122	Zinc, total [as Zn]	MO AVG	<= .3 lb/d	all year
122	Zinc, total [as Zn]	DAILY MX	<= .9 lb/d	all year
122	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
122	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
401	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
401	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
601	Solids, total suspended	MO AVG	report only	all year
601	Solids, total suspended	DAILY MX	report only	all year
601	Oil & Grease	MO AVG	report only	all year
601	Oil & Grease	DAILY MX	report only	all year
601	Nitrogen, total [as N]	DAILY MX	report only	all year
601	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
601	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
601	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
601	Phosphorus, total [as P]	DAILY MX	report only	all year
601	Lead, total [as Pb]	MO AVG	report only	all year
601	Lead, total [as Pb]	DAILY MX	report only	all year
601	Zinc, total [as Zn]	MO AVG	report only	all year
601	Zinc, total [as Zn]	DAILY MX	report only	all year