Nucor-Yamato Steel Company [Limited Partnership]

NPDES permit AR0043117 · Minor NON-POTW · administratively continued, expires 2026-03-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
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.

This permit expired on 2026-03-31 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

0values over a limit
6required values missing, on 1 form(s)
0of 63 forms filed late

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

Reporting

Reports are due about 25 days after each monitoring period ends (the most common figure among AR permits in EPA's filings — check your permit).

Limits in force (141)

OutfallParameterStatisticLimitMonths
001Total production - massMO AVG report only all year
001Total production - massMO AVG report only all year
001pHMINIMUM >= 6 SU all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedMO AVG <= 272 lb/d all year
001Solids, total suspendedMO AVG <= 340 lb/d all year
001Solids, total suspendedDAILY MX <= 732.6 lb/d all year
001Solids, total suspendedDAILY MX <= 915.8 lb/d all year
001Oil & GreaseMO AVG <= 10 mg/L all year
001Oil & GreaseMO AVG <= 10 mg/L all year
001Oil & GreaseMO AVG <= 10 mg/L all year
001Oil & GreaseMO AVG <= 10 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Oil & GreaseMO AVG <= 131.8 lb/d all year
001Oil & GreaseMO AVG <= 131.8 lb/d all year
001Oil & GreaseMO AVG <= 169.5 lb/d all year
001Oil & GreaseMO AVG <= 211.9 lb/d all year
001Oil & GreaseDAILY MX <= 197.7 lb/d all year
001Oil & GreaseDAILY MX <= 197.7 lb/d all year
001Oil & GreaseDAILY MX <= 207.1 lb/d all year
001Oil & GreaseDAILY MX <= 258.9 lb/d all year
001Zinc, total recoverableMO AVG report only all year
001Zinc, total recoverableMO AVG report only all year
001Zinc, total recoverableDAILY MX report only all year
001Zinc, total recoverableDAILY MX report only all year
001Zinc, total recoverableMO AVG <= .9 lb/d all year
001Zinc, total recoverableMO AVG <= 1.1 lb/d all year
001Zinc, total recoverableDAILY MX <= 2.5 lb/d all year
001Zinc, total recoverableDAILY MX <= 3.2 lb/d all year
001Lead, total recoverableMO AVG report only all year
001Lead, total recoverableMO AVG report only all year
001Lead, total recoverableDAILY MX report only all year
001Lead, total recoverableDAILY MX report only all year
001Lead, total recoverableMO AVG <= .6 lb/d all year
001Lead, total recoverableMO AVG <= .7 lb/d all year
001Lead, total recoverableDAILY MX <= 1.7 lb/d all year
001Lead, total recoverableDAILY MX <= 2.1 lb/d all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
002Oxygen demand, chem. [low level] [COD]MO AVG report only all year
002Oxygen demand, chem. [low level] [COD]MO AVG report only all year
002Oxygen demand, chem. [low level] [COD]DAILY MX report only all year
002Oxygen demand, chem. [low level] [COD]DAILY MX <= 75 mg/L all year
002Oxygen demand, chem. [low level] [COD]MO AVG <= 950.8 lb/d all year
002Oxygen demand, chem. [low level] [COD]DAILY MX report only all year
002pHMINIMUM >= 6 SU all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedMO AVG <= 200 mg/L all year
002Solids, total suspendedDAILY MX report only all year
002Solids, total suspendedDAILY MX report only all year
002Solids, total suspendedMO AVG <= 3803 lb/d all year
002Solids, total suspendedDAILY MX report only all year
002Oil & GreaseMO AVG report only all year
002Oil & GreaseMO AVG <= 10 mg/L all year
002Oil & GreaseDAILY MX report only all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Oil & GreaseMO AVG <= 190.2 lb/d all year
002Oil & GreaseDAILY MX <= 285.2 lb/d all year
002Copper, total recoverableMO AVG report only all year
002Copper, total recoverableMO AVG <= 29.5 ug/L all year
002Copper, total recoverableMO AVG report only all year
002Copper, total recoverableDAILY MX report only all year
002Copper, total recoverableDAILY MX <= 59.1 ug/L all year
002Copper, total recoverableDAILY MX report only all year
002Copper, total recoverableMO AVG <= .6 lb/d all year
002Copper, total recoverableMO AVG <= .56 lb/d all year
002Copper, total recoverableDAILY MX <= 1.1 lb/d all year
002Copper, total recoverableDAILY MX <= 1.12 lb/d all year
002Flow, in conduit or thru treatment plantMO AVG 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
002Flow, in conduit or thru treatment plantDAILY MX report only all year
003BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
003BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
003BOD, 5-day, 20 deg. CMO AVG <= 62.6 lb/d all year
003BOD, 5-day, 20 deg. CDAILY MX <= 93.8 lb/d all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedMO AVG <= 90 mg/L all year
003Solids, total suspendedDAILY MX <= 135 mg/L all year
003Solids, total suspendedMO AVG <= 187.6 lb/d all year
003Solids, total suspendedDAILY MX <= 281.5 lb/d all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Coliform, fecal general30DA GEO <= 200 #/100mL May, Jun, Jul, Aug, Sep
003Coliform, fecal general30DA GEO <= 1000 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
003Coliform, fecal general7 DA GEO <= 400 #/100mL May, Jun, Jul, Aug, Sep
003Coliform, fecal general7 DA GEO <= 2000 #/100mL Jan, Feb, Mar, Apr, Oct, Nov, Dec
TX1Whole effluent toxicity - retest #148HR MIN report only all year
TX1Whole effluent toxicity - retest #148HR MIN report only all year
TX1Whole effluent toxicity - retest #248HR MIN report only all year
TX1Whole effluent toxicity - retest #248HR MIN report only all year
TX1WET, sublethal retest #14C report only all year
TX1WET, sublethal retest #148HR MIN report only all year
TX1WET, sublethal retest #248HR MIN report only all year
TX1WET, sublethal retest #248HR MIN report only all year
TX1Whole Effluent Toxicity - Retest #348HR MIN report only all year
TX1Whole Effluent Toxicity - Retest #348HR MIN report only all year
TX1Whole Effluent Toxicity, Sub-Lethal Retest #348HR MIN report only all year
TX1Whole Effluent Toxicity, Sub-Lethal Retest #348HR MIN report only all year
TX1Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48HR MIN report only all year
TX1Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48HR MIN report only all year
TX1LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48HR MIN report only all year
TX1LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48HR MIN report only all year
TX1NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48HR MIN report only all year
TX1NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48HR MIN report only all year
TX1NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48HR MIN report only all year
TX1NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48HR MIN report only all year
TX1Coef Of Var Static Renewal 48Hr Acute D. pulex48HR MIN report only all year
TX1Coef Of Var Static Renewal 48Hr Acute D. pulex48HR MIN report only all year
TX1Coef Of Var Static Renewal 48Hr Acute Pimephales promelas48HR MIN report only all year
TX1Coef Of Var Static Renewal 48Hr Acute Pimephales promelas48HR MIN report only all year
TX2WET, sublethal retest #17 DA MIN report only all year
TX2WET, sublethal retest #27 DA MIN report only all year
TX2Whole Effluent Toxicity, Sub-Lethal Retest #37 DA MIN report only all year
TX2Whole Effluent Toxicity [WET] - C. dubia7 DA MIN >= 100 % all year
TX2Whole Effluent Toxicity [WET] - C. dubia7 DA MIN >= 80 % all year
TX2Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only all year
TX2Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX2NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX2NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX2Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
TX2Coef Of Var Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states