CLEVELAND-CLIFFS STEEL LLC - INDIANA HARBOR WEST

NPDES permit IN0000205 · Major NON-POTW · effective, expires 2029-01-31 · 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 127 forms filed late

Last period with anything received: 2026-07-31.

Reporting

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

Limits in force (327)

OutfallParameterStatisticLimitMonths
000Flow rateDAILY MX report only all year
000Flow rateDAILY MX report only all year
002Temperature, water deg. fahrenheitMO AVG report only all year
002Temperature, water deg. fahrenheitDAILY MX report only all year
002Temperature, water deg. fahrenheitMO AVG report only all year
002Temperature, water deg. fahrenheitDAILY MX report only all year
002pHDAILY MN >= 6 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedDAILY MX report only all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedDAILY MX report only all year
002Oil and grease, hexane extr methodMO AVG report only all year
002Oil and grease, hexane extr methodDAILY MX report only all year
002Oil and grease, hexane extr methodMO AVG report only all year
002Oil and grease, hexane extr methodDAILY MX report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Chlorine, total residualMO AVG <= .016 mg/L all year
002Chlorine, total residualDAILY MX < .06 mg/L all year
002Chlorine, total residualMO AVG <= 1.7 lb/d all year
002Chlorine, total residualDAILY MX < 6.3 lb/d all year
002Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
002Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
002Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
002Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
002Flow, totalMO TOTAL report only all year
009Temperature, water deg. fahrenheitMO AVG report only all year
009Temperature, water deg. fahrenheitMO AVG report only all year
009Temperature, water deg. fahrenheitDAILY MX report only all year
009Temperature, water deg. fahrenheitDAILY MX report only all year
009Temperature, water deg. fahrenheitMO AVG report only all year
009Temperature, water deg. fahrenheitMO AVG report only all year
009Temperature, water deg. fahrenheitDAILY MX report only all year
009Temperature, water deg. fahrenheitDAILY MX report only all year
009pHDAILY MN >= 6 SU all year
009pHDAILY MN >= 6 SU all year
009pHDAILY MX <= 9 SU all year
009pHDAILY MX <= 9 SU all year
009Solids, total suspendedMO AVG report only all year
009Solids, total suspendedMO AVG report only all year
009Solids, total suspendedDAILY MX report only all year
009Solids, total suspendedDAILY MX report only all year
009Solids, total suspendedMO AVG report only all year
009Solids, total suspendedMO AVG report only all year
009Solids, total suspendedDAILY MX report only all year
009Solids, total suspendedDAILY MX report only all year
009Oil and grease, hexane extr methodMO AVG report only all year
009Oil and grease, hexane extr methodMO AVG report only all year
009Oil and grease, hexane extr methodDAILY MX report only all year
009Oil and grease, hexane extr methodDAILY MX report only all year
009Oil and grease, hexane extr methodMO AVG report only all year
009Oil and grease, hexane extr methodMO AVG report only all year
009Oil and grease, hexane extr methodDAILY MX report only all year
009Oil and grease, hexane extr methodDAILY MX report only all year
009Nitrogen, ammonia total [as N]MO AVG report only all year
009Nitrogen, ammonia total [as N]DAILY MX report only all year
009Nitrogen, ammonia total [as N]MO AVG <= 2.4 mg/L all year
009Nitrogen, ammonia total [as N]DAILY MX <= 4.8 mg/L all year
009Nitrogen, ammonia total [as N]MO AVG report only all year
009Nitrogen, ammonia total [as N]DAILY MX report only all year
009Nitrogen, ammonia total [as N]MO AVG report only all year
009Nitrogen, ammonia total [as N]DAILY MX report only all year
009Nitrogen, ammonia total [as N]MO AVG <= 425 lb/d all year
009Nitrogen, ammonia total [as N]DAILY MX <= 1000 lb/d all year
009Zinc, total recoverableMO AVG <= 170 ug/L all year
009Zinc, total recoverableDAILY MX <= 330 ug/L all year
009Zinc, total recoverableMO AVG <= 51 lb/d all year
009Zinc, total recoverableDAILY MX <= 99 lb/d all year
009Lead, total recoverableMO AVG report only all year
009Lead, total recoverableDAILY MX report only all year
009Lead, total recoverableMO AVG report only all year
009Lead, total recoverableDAILY MX report only all year
009Phenolics, total recoverableMO AVG report only all year
009Phenolics, total recoverableDAILY MX report only all year
009Phenolics, total recoverableMO AVG report only all year
009Phenolics, total recoverableDAILY MX report only all year
009Phenolics, total recoverableMO AVG report only all year
009Phenolics, total recoverableDAILY MX report only all year
009Phenolics, total recoverableMO AVG report only all year
009Phenolics, total recoverableDAILY MX report only all year
009Phenolics, total recoverableMO AVG report only all year
009Phenolics, total recoverableDAILY MX <= 11 lb/d all year
009Flow, in conduit or thru treatment plantMO AVG report only all year
009Flow, in conduit or thru treatment plantMO AVG report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
009Chlorine, total residualMO AVG <= .014 mg/L all year
009Chlorine, total residualMO AVG <= .014 mg/L all year
009Chlorine, total residualDAILY MX < .06 mg/L all year
009Chlorine, total residualDAILY MX < .06 mg/L all year
009Chlorine, total residualMO AVG <= 4.2 lb/d all year
009Chlorine, total residualMO AVG <= 4.2 lb/d all year
009Chlorine, total residualDAILY MX < 18 lb/d all year
009Chlorine, total residualDAILY MX < 18 lb/d all year
009Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute Feb, Aug
009Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute Jan, Jul
009Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 2.8 tox chronic Feb, Aug
009Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 2.8 tox chronic Jan, Jul
009Mercury, total recoverableANNL AVG <= 1.8 ng/L Feb, Apr, Jun, Aug, Oct, Dec
009Mercury, total recoverableANNL AVG <= 1.8 ng/L Feb, Apr, Jun, Aug, Oct, Dec
009Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
009Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
009Flow, totalMO TOTAL report only all year
009Flow, totalMO TOTAL report only all year
010Temperature, water deg. fahrenheitMO AVG report only all year
010Temperature, water deg. fahrenheitMO AVG report only all year
010Temperature, water deg. fahrenheitDAILY MX report only all year
010Temperature, water deg. fahrenheitDAILY MX report only all year
010Temperature, water deg. fahrenheitMO AVG report only all year
010Temperature, water deg. fahrenheitMO AVG report only all year
010Temperature, water deg. fahrenheitDAILY MX report only all year
010Temperature, water deg. fahrenheitDAILY MX report only all year
010pHDAILY MN >= 6 SU all year
010pHDAILY MN >= 6 SU all year
010pHDAILY MX <= 9 SU all year
010pHDAILY MX <= 9 SU all year
010Solids, total suspendedMO AVG report only all year
010Solids, total suspendedMO AVG report only all year
010Solids, total suspendedDAILY MX report only all year
010Solids, total suspendedDAILY MX report only all year
010Solids, total suspendedMO AVG report only all year
010Solids, total suspendedMO AVG report only all year
010Solids, total suspendedDAILY MX report only all year
010Solids, total suspendedDAILY MX report only all year
010Oil and grease, hexane extr methodMO AVG report only all year
010Oil and grease, hexane extr methodMO AVG report only all year
010Oil and grease, hexane extr methodDAILY MX report only all year
010Oil and grease, hexane extr methodDAILY MX report only all year
010Oil and grease, hexane extr methodMO AVG report only all year
010Oil and grease, hexane extr methodMO AVG report only all year
010Oil and grease, hexane extr methodDAILY MX report only all year
010Oil and grease, hexane extr methodDAILY MX report only all year
010Nitrogen, ammonia total [as N]MO AVG report only all year
010Nitrogen, ammonia total [as N]DAILY MX report only all year
010Nitrogen, ammonia total [as N]MO AVG report only all year
010Nitrogen, ammonia total [as N]DAILY MX report only all year
010Nitrogen, ammonia total [as N]MO AVG report only all year
010Nitrogen, ammonia total [as N]DAILY MX report only all year
010Nitrogen, ammonia total [as N]MO AVG report only all year
010Nitrogen, ammonia total [as N]DAILY MX report only all year
010Nitrogen, ammonia total [as N]MO AVG <= 100 lb/d all year
010Nitrogen, ammonia total [as N]DAILY MX <= 300 lb/d all year
010Zinc, total recoverableMO AVG report only all year
010Zinc, total recoverableDAILY MX report only all year
010Zinc, total recoverableMO AVG report only all year
010Zinc, total recoverableDAILY MX report only all year
010Lead, total recoverableMO AVG report only all year
010Lead, total recoverableDAILY MX report only all year
010Lead, total recoverableMO AVG report only all year
010Lead, total recoverableDAILY MX report only all year
010Phenolics, total recoverableMO AVG report only all year
010Phenolics, total recoverableDAILY MX report only all year
010Phenolics, total recoverableMO AVG report only all year
010Phenolics, total recoverableDAILY MX report only all year
010Phenolics, total recoverableMO AVG report only all year
010Phenolics, total recoverableDAILY MX report only all year
010Phenolics, total recoverableMO AVG report only all year
010Phenolics, total recoverableDAILY MX report only all year
010Phenolics, total recoverableMO AVG report only all year
010Phenolics, total recoverableDAILY MX <= 5 lb/d all year
010Flow, in conduit or thru treatment plantMO AVG report only all year
010Flow, in conduit or thru treatment plantMO AVG report only all year
010Flow, in conduit or thru treatment plantDAILY MX report only all year
010Flow, in conduit or thru treatment plantDAILY MX report only all year
010Chlorine, total residualMO AVG < .014 mg/L all year
010Chlorine, total residualMO AVG <= .014 mg/L all year
010Chlorine, total residualDAILY MX < .06 mg/L all year
010Chlorine, total residualDAILY MX < .06 mg/L all year
010Chlorine, total residualMO AVG <= 4.1 lb/d all year
010Chlorine, total residualMO AVG <= 4.1 lb/d all year
010Chlorine, total residualDAILY MX < 18 lb/d all year
010Chlorine, total residualDAILY MX < 18 lb/d all year
010Mercury, total recoverableANNL AVG <= 1.5 ng/L Feb, Apr, Jun, Aug, Oct, Dec
010Mercury, total recoverableANNL AVG <= 1.5 ng/L Feb, Apr, Jun, Aug, Oct, Dec
010Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
010Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
010Flow, totalMO TOTAL report only all year
010Flow, totalMO TOTAL report only all year
011Temperature, water deg. fahrenheitMO AVG report only all year
011Temperature, water deg. fahrenheitMO AVG report only all year
011Temperature, water deg. fahrenheitDAILY MX report only all year
011Temperature, water deg. fahrenheitDAILY MX report only all year
011Temperature, water deg. fahrenheitMO AVG report only all year
011Temperature, water deg. fahrenheitMO AVG report only all year
011Temperature, water deg. fahrenheitDAILY MX report only all year
011Temperature, water deg. fahrenheitDAILY MX report only all year
011pHDAILY MN >= 6 SU all year
011pHDAILY MN >= 6 SU all year
011pHDAILY MX <= 9 SU all year
011pHDAILY MX <= 9 SU all year
011Solids, total suspendedMO AVG report only all year
011Solids, total suspendedMO AVG report only all year
011Solids, total suspendedDAILY MX report only all year
011Solids, total suspendedDAILY MX report only all year
011Solids, total suspendedMO AVG report only all year
011Solids, total suspendedMO AVG report only all year
011Solids, total suspendedDAILY MX report only all year
011Solids, total suspendedDAILY MX report only all year
011Oil and grease, hexane extr methodMO AVG report only all year
011Oil and grease, hexane extr methodMO AVG report only all year
011Oil and grease, hexane extr methodDAILY MX report only all year
011Oil and grease, hexane extr methodDAILY MX report only all year
011Oil and grease, hexane extr methodMO AVG report only all year
011Oil and grease, hexane extr methodMO AVG report only all year
011Oil and grease, hexane extr methodDAILY MX report only all year
011Oil and grease, hexane extr methodDAILY MX report only all year
011Nitrogen, ammonia total [as N]MO AVG report only all year
011Nitrogen, ammonia total [as N]DAILY MX report only all year
011Nitrogen, ammonia total [as N]MO AVG report only all year
011Nitrogen, ammonia total [as N]DAILY MX report only all year
011Nitrogen, ammonia total [as N]MO AVG report only all year
011Nitrogen, ammonia total [as N]DAILY MX report only all year
011Nitrogen, ammonia total [as N]MO AVG report only all year
011Nitrogen, ammonia total [as N]DAILY MX report only all year
011Nitrogen, ammonia total [as N]MO AVG <= 75 lb/d all year
011Nitrogen, ammonia total [as N]DAILY MX <= 150 lb/d all year
011Zinc, total recoverableMO AVG report only all year
011Zinc, total recoverableMO AVG report only all year
011Zinc, total recoverableDAILY MX report only all year
011Zinc, total recoverableDAILY MX report only all year
011Zinc, total recoverableMO AVG report only all year
011Zinc, total recoverableMO AVG report only all year
011Zinc, total recoverableDAILY MX report only all year
011Zinc, total recoverableDAILY MX report only all year
011Lead, total recoverableMO AVG report only all year
011Lead, total recoverableMO AVG report only all year
011Lead, total recoverableDAILY MX report only all year
011Lead, total recoverableDAILY MX report only all year
011Lead, total recoverableMO AVG report only all year
011Lead, total recoverableMO AVG report only all year
011Lead, total recoverableDAILY MX report only all year
011Lead, total recoverableDAILY MX report only all year
011Phenolics, total recoverableMO AVG report only all year
011Phenolics, total recoverableDAILY MX report only all year
011Phenolics, total recoverableMO AVG report only all year
011Phenolics, total recoverableDAILY MX report only all year
011Phenolics, total recoverableMO AVG report only all year
011Phenolics, total recoverableDAILY MX report only all year
011Phenolics, total recoverableMO AVG report only all year
011Phenolics, total recoverableDAILY MX report only all year
011Phenolics, total recoverableMO AVG report only all year
011Phenolics, total recoverableDAILY MX <= 5 lb/d all year
011Oxidants, total residualMO AVG <= .74 ug/L all year
011Oxidants, total residualMO AVG <= .74 ug/L all year
011Oxidants, total residualDAILY MX <= 60 ug/L all year
011Oxidants, total residualDAILY MX <= 60 ug/L all year
011Oxidants, total residualMO AVG <= .19 lb/d all year
011Oxidants, total residualMO AVG <= .19 lb/d all year
011Oxidants, total residualDAILY MX <= 15.4 lb/d all year
011Oxidants, total residualDAILY MX <= 15 lb/d all year
011Flow, in conduit or thru treatment plantMO AVG report only all year
011Flow, in conduit or thru treatment plantMO AVG report only all year
011Flow, in conduit or thru treatment plantDAILY MX report only all year
011Flow, in conduit or thru treatment plantDAILY MX report only all year
011Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute Feb, Aug
011Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute Jan, Jul
011Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 4.1 tox chronic Feb, Aug
011Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 4.1 tox chronic Jan, Jul
011Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
011Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
011Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
011Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
011Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
011Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
011Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
011Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
011Flow, totalMO TOTAL report only all year
011Flow, totalMO TOTAL report only all year
509Solids, total suspendedMO AVG report only all year
509Solids, total suspendedDAILY MX report only all year
509Solids, total suspendedMO AVG <= 364 lb/d all year
509Solids, total suspendedDAILY MX <= 1100 lb/d all year
509Nitrogen, ammonia total [as N]MO AVG report only all year
509Nitrogen, ammonia total [as N]DAILY MX report only all year
509Nitrogen, ammonia total [as N]MO AVG report only all year
509Nitrogen, ammonia total [as N]DAILY MX report only all year
509Cyanide, total [as CN]MO AVG report only all year
509Cyanide, total [as CN]DAILY MX report only all year
509Cyanide, total [as CN]MO AVG <= 12.3 lb/d all year
509Cyanide, total [as CN]DAILY MX <= 24.5 lb/d all year
509Zinc, total recoverableMO AVG report only all year
509Zinc, total recoverableDAILY MX report only all year
509Zinc, total recoverableMO AVG <= 1.83 lb/d all year
509Zinc, total recoverableDAILY MX <= 5.52 lb/d all year
509Lead, total recoverableMO AVG report only all year
509Lead, total recoverableDAILY MX report only all year
509Lead, total recoverableMO AVG <= 1.23 lb/d all year
509Lead, total recoverableDAILY MX <= 3.68 lb/d all year
509Phenolics, total recoverableMO AVG report only all year
509Phenolics, total recoverableDAILY MX report only all year
509Phenolics, total recoverableMO AVG report only all year
509Phenolics, total recoverableDAILY MX report only all year
509Flow, in conduit or thru treatment plantMO AVG report only all year
509Flow, in conduit or thru treatment plantDAILY MX report only all year
701Solids, total suspendedMO AVG report only all year
701Solids, total suspendedDAILY MX report only all year
701Solids, total suspendedMO AVG <= 31.6 lb/d all year
701Solids, total suspendedDAILY MX <= 88.3 lb/d all year
701Zinc, total recoverableMO AVG report only all year
701Zinc, total recoverableDAILY MX report only all year
701Zinc, total recoverableMO AVG <= .568 lb/d all year
701Zinc, total recoverableDAILY MX <= 1.71 lb/d all year
701Lead, total recoverableMO AVG report only all year
701Lead, total recoverableDAILY MX report only all year
701Lead, total recoverableMO AVG <= .379 lb/d all year
701Lead, total recoverableDAILY MX <= 1.14 lb/d all year
701Flow, in conduit or thru treatment plantMO AVG report only all year
701Flow, in conduit or thru treatment plantDAILY MX report only all year
702Solids, total suspendedMO AVG report only all year
702Solids, total suspendedDAILY MX report only all year
702Solids, total suspendedMO AVG <= 51.4 lb/d all year
702Solids, total suspendedDAILY MX <= 144 lb/d all year
702Oil and grease, hexane extr methodMO AVG report only all year
702Oil and grease, hexane extr methodDAILY MX report only all year
702Oil and grease, hexane extr methodMO AVG <= 20.5 lb/d all year
702Oil and grease, hexane extr methodDAILY MX <= 61.7 lb/d all year
702Zinc, total recoverableMO AVG report only all year
702Zinc, total recoverableDAILY MX report only all year
702Zinc, total recoverableMO AVG <= .924 lb/d all year
702Zinc, total recoverableDAILY MX <= 2.78 lb/d all year
702Lead, total recoverableMO AVG report only all year
702Lead, total recoverableDAILY MX report only all year
702Lead, total recoverableMO AVG <= .617 lb/d all year
702Lead, total recoverableDAILY MX <= 1.85 lb/d all year
702Flow, in conduit or thru treatment plantMO AVG report only all year
702Flow, in conduit or thru treatment plantDAILY MX report only all year

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