CLEVELAND-CLIFFS STEEL LLC - INDIANA HARBOR EAST

NPDES permit IN0000094 · Major NON-POTW · effective, expires 2029-01-31 · EPA's file as of 2026-09-19

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Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

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

4values over a limit
0required values missing, on 0 form(s)
0of 105 forms filed late

Last period with anything received: 2026-07-31. Most often over: pH (2), Oil and grease, hexane extr method (2).

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 (344)

OutfallParameterStatisticLimitMonths
000Flow rateHX report only all year
000Flow rateDAILY MX report only all year
000Flow rateHX report only all year
000Flow rateDAILY MX report only all year
000Surface area, square feetDAILY MX report only all year
000Depth to water level ft below landsurfaceDAILY MX report only all year
000Velocity of intakeHX <= .5 ft/sec all year
011Temperature, water deg. fahrenheitMO AVG 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. fahrenheitDAILY MX report only all year
011pHDAILY MN >= 6 SU all year
011pHDAILY MX <= 9 SU all year
011Oil and grease, hexane extr methodDAILY MX report only all year
011Oil and grease, hexane extr methodDAILY MX 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
011Chlorine, total residualMO AVG <= 14 ug/L all year
011Chlorine, total residualDAILY MX < 60 ug/L all year
011Chlorine, total residualMO AVG <= .058 lb/d all year
011Chlorine, total residualDAILY MX < .25 lb/d all year
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 recoverableMO AVG 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
013Temperature, water deg. fahrenheitMO AVG report only all year
013Temperature, water deg. fahrenheitMO AVG report only all year
013Temperature, water deg. fahrenheitDAILY MX report only all year
013Temperature, water deg. fahrenheitDAILY MX report only all year
013Temperature, water deg. fahrenheitMO AVG report only all year
013Temperature, water deg. fahrenheitMO AVG report only all year
013Temperature, water deg. fahrenheitDAILY MX report only all year
013Temperature, water deg. fahrenheitDAILY MX report only all year
013pHDAILY MN >= 6 SU all year
013pHDAILY MN >= 6 SU all year
013pHDAILY MX <= 9 SU all year
013pHDAILY MX <= 9 SU all year
013Solids, total suspendedMO AVG report only all year
013Solids, total suspendedMO AVG report only all year
013Solids, total suspendedDAILY MX report only all year
013Solids, total suspendedDAILY MX report only all year
013Solids, total suspendedMO AVG <= 5770 lb/d all year
013Solids, total suspendedMO AVG <= 5294 lb/d all year
013Solids, total suspendedDAILY MX <= 14800 lb/d all year
013Solids, total suspendedDAILY MX <= 13849 lb/d all year
013Oil and grease, hexane extr methodMO AVG <= 10 mg/L all year
013Oil and grease, hexane extr methodMO AVG <= 10 mg/L all year
013Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
013Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
013Oil and grease, hexane extr methodMO AVG <= 1421 lb/d all year
013Oil and grease, hexane extr methodMO AVG <= 1263 lb/d all year
013Oil and grease, hexane extr methodDAILY MX <= 4172 lb/d all year
013Oil and grease, hexane extr methodDAILY MX <= 3775 lb/d all year
013Nitrogen, ammonia total [as N]MO AVG report only all year
013Nitrogen, ammonia total [as N]MO AVG report only all year
013Nitrogen, ammonia total [as N]DAILY MX report only all year
013Nitrogen, ammonia total [as N]DAILY MX report only all year
013Nitrogen, ammonia total [as N]MO AVG report only all year
013Nitrogen, ammonia total [as N]MO AVG report only all year
013Nitrogen, ammonia total [as N]DAILY MX report only all year
013Nitrogen, ammonia total [as N]DAILY MX report only all year
013Cyanide, free [as free]MO AVG report only all year
013Cyanide, free [as free]MO AVG report only all year
013Cyanide, free [as free]DAILY MX report only all year
013Cyanide, free [as free]DAILY MX report only all year
013Cyanide, free [as free]MO AVG report only all year
013Cyanide, free [as free]MO AVG report only all year
013Cyanide, free [as free]DAILY MX report only all year
013Cyanide, free [as free]DAILY MX report only all year
013Cyanide, total [as CN]MO AVG report only all year
013Cyanide, total [as CN]MO AVG report only all year
013Cyanide, total [as CN]DAILY MX report only all year
013Cyanide, total [as CN]DAILY MX report only all year
013Cyanide, total [as CN]MO AVG report only all year
013Cyanide, total [as CN]MO AVG report only all year
013Cyanide, total [as CN]DAILY MX report only all year
013Cyanide, total [as CN]DAILY MX report only all year
013Selenium, total recoverableMO AVG report only all year
013Selenium, total recoverableMO AVG report only all year
013Selenium, total recoverableDAILY MX report only all year
013Selenium, total recoverableDAILY MX report only all year
013Selenium, total recoverableMO AVG report only all year
013Selenium, total recoverableMO AVG report only all year
013Selenium, total recoverableDAILY MX report only all year
013Selenium, total recoverableDAILY MX report only all year
013Zinc, total recoverableMO AVG report only all year
013Zinc, total recoverableMO AVG report only all year
013Zinc, total recoverableDAILY MX report only all year
013Zinc, total recoverableDAILY MX report only all year
013Zinc, total recoverableMO AVG <= 10.4 lb/d all year
013Zinc, total recoverableMO AVG <= 8.86 lb/d all year
013Zinc, total recoverableDAILY MX <= 22 lb/d all year
013Zinc, total recoverableDAILY MX <= 22 lb/d all year
013Lead, total recoverableMO AVG <= 14 ug/L all year
013Lead, total recoverableMO AVG <= 14 ug/L all year
013Lead, total recoverableDAILY MX <= 27 ug/L all year
013Lead, total recoverableDAILY MX <= 27 ug/L all year
013Lead, total recoverableMO AVG <= 1.1 lb/d all year
013Lead, total recoverableMO AVG <= 1.1 lb/d all year
013Lead, total recoverableDAILY MX <= 2.2 lb/d all year
013Lead, total recoverableDAILY MX <= 2.2 lb/d all year
013Phenolics, total recoverableMO AVG report only all year
013Phenolics, total recoverableMO AVG report only all year
013Phenolics, total recoverableDAILY MX report only all year
013Phenolics, total recoverableDAILY MX report only all year
013Phenolics, total recoverableMO AVG report only all year
013Phenolics, total recoverableMO AVG report only all year
013Phenolics, total recoverableDAILY MX report only all year
013Phenolics, total recoverableDAILY MX report only all year
013Oxidants, total residualMO AVG <= 1.8 ug/L all year
013Oxidants, total residualMO AVG <= 1.8 ug/L all year
013Oxidants, total residualDAILY MX < 20 ug/L all year
013Oxidants, total residualDAILY MX < 20 ug/L all year
013Oxidants, total residualMO AVG <= .14 lb/d all year
013Oxidants, total residualMO AVG <= .14 lb/d all year
013Oxidants, total residualDAILY MX < 4.8 lb/d all year
013Oxidants, total residualDAILY MX < 4.8 lb/d all year
013Flow, in conduit or thru treatment plantMO AVG report only all year
013Flow, in conduit or thru treatment plantMO AVG report only all year
013Flow, in conduit or thru treatment plantDAILY MX report only all year
013Flow, in conduit or thru treatment plantDAILY MX report only all year
013Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
013Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
013Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
013Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
013Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
013Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
013Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
013Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
013Flow, totalMO TOTAL report only all year
013Flow, totalMO TOTAL report only all year
014Temperature, water deg. fahrenheitMO AVG report only all year
014Temperature, water deg. fahrenheitMO AVG report only all year
014Temperature, water deg. fahrenheitDAILY MX report only all year
014Temperature, water deg. fahrenheitDAILY MX report only all year
014Temperature, water deg. fahrenheitMO AVG report only all year
014Temperature, water deg. fahrenheitMO AVG report only all year
014Temperature, water deg. fahrenheitDAILY MX report only all year
014Temperature, water deg. fahrenheitDAILY MX report only all year
014pHDAILY MN >= 6 SU all year
014pHDAILY MN >= 6 SU all year
014pHDAILY MX <= 9 SU all year
014pHDAILY MX <= 9 SU all year
014Solids, total suspendedMO AVG report only all year
014Solids, total suspendedMO AVG report only all year
014Solids, total suspendedDAILY MX report only all year
014Solids, total suspendedDAILY MX report only all year
014Solids, total suspendedMO AVG <= 5770 lb/d all year
014Solids, total suspendedMO AVG <= 5294 lb/d all year
014Solids, total suspendedDAILY MX <= 14800 lb/d all year
014Solids, total suspendedDAILY MX <= 13849 lb/d all year
014Oil and grease, hexane extr methodMO AVG <= 10 mg/L all year
014Oil and grease, hexane extr methodMO AVG <= 10 mg/L all year
014Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
014Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
014Oil and grease, hexane extr methodMO AVG <= 1421 lb/d all year
014Oil and grease, hexane extr methodMO AVG <= 1421 lb/d all year
014Oil and grease, hexane extr methodDAILY MX <= 4172 lb/d all year
014Oil and grease, hexane extr methodDAILY MX <= 4172 lb/d all year
014Nitrogen, ammonia total [as N]MO AVG report only all year
014Nitrogen, ammonia total [as N]MO AVG report only all year
014Nitrogen, ammonia total [as N]DAILY MX report only all year
014Nitrogen, ammonia total [as N]DAILY MX report only all year
014Nitrogen, ammonia total [as N]MO AVG report only all year
014Nitrogen, ammonia total [as N]MO AVG report only all year
014Nitrogen, ammonia total [as N]DAILY MX report only all year
014Nitrogen, ammonia total [as N]DAILY MX report only all year
014Cyanide, free [as free]MO AVG report only all year
014Cyanide, free [as free]MO AVG report only all year
014Cyanide, free [as free]DAILY MX report only all year
014Cyanide, free [as free]DAILY MX report only all year
014Cyanide, free [as free]MO AVG report only all year
014Cyanide, free [as free]MO AVG report only all year
014Cyanide, free [as free]DAILY MX report only all year
014Cyanide, free [as free]DAILY MX report only all year
014Cyanide, total [as CN]MO AVG report only all year
014Cyanide, total [as CN]MO AVG report only all year
014Cyanide, total [as CN]DAILY MX report only all year
014Cyanide, total [as CN]DAILY MX report only all year
014Cyanide, total [as CN]MO AVG report only all year
014Cyanide, total [as CN]MO AVG report only all year
014Cyanide, total [as CN]DAILY MX report only all year
014Cyanide, total [as CN]DAILY MX report only all year
014Selenium, total recoverableMO AVG report only all year
014Selenium, total recoverableMO AVG report only all year
014Selenium, total recoverableDAILY MX report only all year
014Selenium, total recoverableDAILY MX report only all year
014Selenium, total recoverableMO AVG report only all year
014Selenium, total recoverableMO AVG report only all year
014Selenium, total recoverableDAILY MX report only all year
014Selenium, total recoverableDAILY MX report only all year
014Zinc, total recoverableMO AVG report only all year
014Zinc, total recoverableMO AVG report only all year
014Zinc, total recoverableDAILY MX report only all year
014Zinc, total recoverableDAILY MX report only all year
014Zinc, total recoverableMO AVG <= 10.4 lb/d all year
014Zinc, total recoverableMO AVG <= 10.4 lb/d all year
014Zinc, total recoverableDAILY MX <= 22 lb/d all year
014Zinc, total recoverableDAILY MX <= 22 lb/d all year
014Lead, total recoverableMO AVG <= 14 ug/L all year
014Lead, total recoverableMO AVG <= 14 ug/L all year
014Lead, total recoverableDAILY MX <= 27 ug/L all year
014Lead, total recoverableDAILY MX <= 27 ug/L all year
014Lead, total recoverableMO AVG <= 1.1 lb/d all year
014Lead, total recoverableMO AVG <= 1.1 lb/d all year
014Lead, total recoverableDAILY MX <= 2.2 lb/d all year
014Lead, total recoverableDAILY MX <= 2.2 lb/d all year
014Phenolics, total recoverableMO AVG report only all year
014Phenolics, total recoverableMO AVG report only all year
014Phenolics, total recoverableDAILY MX report only all year
014Phenolics, total recoverableDAILY MX report only all year
014Phenolics, total recoverableMO AVG report only all year
014Phenolics, total recoverableMO AVG report only all year
014Phenolics, total recoverableDAILY MX report only all year
014Phenolics, total recoverableDAILY MX report only all year
014Oxidants, total residualMO AVG <= 1.8 ug/L all year
014Oxidants, total residualMO AVG <= 1.8 ug/L all year
014Oxidants, total residualDAILY MX < 20 ug/L all year
014Oxidants, total residualDAILY MX < 20 ug/L all year
014Oxidants, total residualMO AVG <= .14 lb/d all year
014Oxidants, total residualMO AVG <= .14 lb/d all year
014Oxidants, total residualDAILY MX < 4.8 lb/d all year
014Oxidants, total residualDAILY MX < 4.8 lb/d all year
014Flow, in conduit or thru treatment plantMO AVG report only all year
014Flow, in conduit or thru treatment plantMO AVG report only all year
014Flow, in conduit or thru treatment plantDAILY MX report only all year
014Flow, in conduit or thru treatment plantDAILY MX report only all year
014Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute Feb, Aug
014Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute Jan, Jul
014Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 9.8 tox chronic Feb, Aug
014Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 9.8 tox chronic Jan, Jul
014Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
014Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
014Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
014Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
014Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
014Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
014Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
014Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
014Flow, totalMO TOTAL report only all year
014Flow, totalMO TOTAL report only all year
018Temperature, water deg. fahrenheitMO AVG report only all year
018Temperature, water deg. fahrenheitDAILY MX report only all year
018Temperature, water deg. fahrenheitMO AVG report only all year
018Temperature, water deg. fahrenheitDAILY MX report only all year
018pHDAILY MN >= 6 SU all year
018pHDAILY MX <= 9.5 SU all year
018Solids, total suspendedMO AVG report only all year
018Solids, total suspendedDAILY MX report only all year
018Oil and grease, hexane extr methodDAILY MX report only all year
018Nitrogen, ammonia total [as N]MO AVG report only all year
018Nitrogen, ammonia total [as N]DAILY MX report only all year
018Nitrogen, ammonia total [as N]MO AVG report only all year
018Nitrogen, ammonia total [as N]DAILY MX report only all year
018Cyanide, free [as free]MO AVG report only all year
018Cyanide, free [as free]MO AVG <= 22 ug/L all year
018Cyanide, free [as free]DAILY MX report only all year
018Cyanide, free [as free]DAILY MX <= 44 ug/L all year
018Cyanide, free [as free]MO AVG report only all year
018Cyanide, free [as free]MO AVG <= 3.7 lb/d all year
018Cyanide, free [as free]DAILY MX report only all year
018Cyanide, free [as free]DAILY MX <= 7.3 lb/d all year
018Selenium, total recoverableMO AVG report only all year
018Selenium, total recoverableDAILY MX report only all year
018Selenium, total recoverableMO AVG report only all year
018Selenium, total recoverableDAILY MX report only all year
018Zinc, total recoverableMO AVG report only all year
018Zinc, total recoverableDAILY MX report only all year
018Zinc, total recoverableMO AVG report only all year
018Zinc, total recoverableDAILY MX report only all year
018Lead, total recoverableMO AVG <= 14 ug/L all year
018Lead, total recoverableDAILY MX <= 27 ug/L all year
018Lead, total recoverableMO AVG <= 2.3 lb/d all year
018Lead, total recoverableDAILY MX <= 4.5 lb/d all year
018Phenolics, total recoverableMO AVG report only all year
018Phenolics, total recoverableDAILY MX report only all year
018Phenolics, total recoverableMO AVG report only all year
018Phenolics, total recoverableDAILY MX report only all year
018Oxidants, total residualMO AVG <= .98 ug/L all year
018Oxidants, total residualDAILY MX < 20 ug/L all year
018Oxidants, total residualMO AVG <= .16 lb/d all year
018Oxidants, total residualDAILY MX < 10 lb/d all year
018Flow, in conduit or thru treatment plantMO AVG report only all year
018Flow, in conduit or thru treatment plantDAILY MX report only all year
018Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute Feb, Aug
018Toxicity [acute], Ceriodaphnia dubiaMAXIMUM <= 1 tox acute Jan, Jul
018Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 5.4 tox chronic Feb, Aug
018Toxicity [chronic], Ceriodaphnia dubiaMAXIMUM <= 5.4 tox chronic Jan, Jul
018Mercury, total recoverableANNL AVG <= 2.5 ng/L Feb, Apr, Jun, Aug, Oct, Dec
018Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
018Flow, totalMO TOTAL report only all year
518Solids, total suspendedMO AVG report only all year
518Solids, total suspendedDAILY MX report only all year
518Solids, total suspendedMO AVG <= 110 lb/d all year
518Solids, total suspendedDAILY MX <= 293 lb/d all year
518Oil and grease, hexane extr methodDAILY MX report only all year
518Oil and grease, hexane extr methodDAILY MX <= 73 lb/d all year
518Nitrogen, ammonia total [as N]MO AVG report only all year
518Nitrogen, ammonia total [as N]DAILY MX report only all year
518Nitrogen, ammonia total [as N]MO AVG <= 73 lb/d all year
518Nitrogen, ammonia total [as N]DAILY MX <= 219 lb/d all year
518Cyanide, total [as CN]MO AVG report only all year
518Cyanide, total [as CN]DAILY MX report only all year
518Cyanide, total [as CN]MO AVG <= 7.3 lb/d all year
518Cyanide, total [as CN]DAILY MX <= 14.6 lb/d all year
518Selenium, total recoverableMO AVG report only all year
518Selenium, total recoverableDAILY MX report only all year
518Selenium, total recoverableMO AVG report only all year
518Selenium, total recoverableDAILY MX report only all year
518Zinc, total recoverableMO AVG report only all year
518Zinc, total recoverableDAILY MX report only all year
518Zinc, total recoverableMO AVG <= 3.28 lb/d all year
518Zinc, total recoverableDAILY MX <= 9.85 lb/d all year
518Lead, total recoverableMO AVG report only all year
518Lead, total recoverableDAILY MX report only all year
518Lead, total recoverableMO AVG <= 2.19 lb/d all year
518Lead, total recoverableDAILY MX <= 6.58 lb/d all year
518Phenolics, total recoverableMO AVG report only all year
518Phenolics, total recoverableDAILY MX report only all year
518Phenolics, total recoverableMO AVG <= .73 lb/d all year
518Phenolics, total recoverableDAILY MX <= 1.46 lb/d all year
518Flow, in conduit or thru treatment plantMO AVG report only all year
518Flow, in conduit or thru treatment plantDAILY MX report only all year
518Chlorine, total residualDAILY MX report only all year
518Chlorine, total residualDAILY MX <= 3.65 lb/d all year
618Solids, total suspendedMO AVG report only all year
618Solids, total suspendedDAILY MX report only all year
618Solids, total suspendedMO AVG <= 886 lb/d all year
618Solids, total suspendedDAILY MX <= 2652 lb/d all year
618Oil and grease, hexane extr methodMO AVG report only all year
618Oil and grease, hexane extr methodDAILY MX report only all year
618Oil and grease, hexane extr methodMO AVG <= 136 lb/d all year
618Oil and grease, hexane extr methodDAILY MX <= 408 lb/d all year
618Zinc, total recoverableMO AVG report only all year
618Zinc, total recoverableDAILY MX report only all year
618Zinc, total recoverableMO AVG <= 5.04 lb/d all year
618Zinc, total recoverableDAILY MX <= 15.1 lb/d all year
618Lead, total recoverableMO AVG report only all year
618Lead, total recoverableDAILY MX report only all year
618Lead, total recoverableMO AVG <= 3.36 lb/d all year
618Lead, total recoverableDAILY MX <= 10.06 lb/d all year
618Flow, in conduit or thru treatment plantMO AVG report only all year
618Flow, in conduit or thru treatment plantDAILY MX report only all year

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