Big River Steel LLC

NPDES permit AR0052582 · Major NON-POTW · effective, expires 2026-11-30 · 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.

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

0values over a limit
0required values missing, on 0 form(s)
0of 33 forms filed late

Last period with anything received: 2026-08-31.

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 (104)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 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 <= 766.6 lb/d all year
001Solids, total suspendedMO AVG <= 725.1 lb/d all year
001Solids, total suspendedDAILY MX <= 1938.4 lb/d all year
001Solids, total suspendedDAILY MX <= 1828 lb/d all year
001Oil & GreaseMO AVG <= 10 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Oil & GreaseMO AVG <= 104.3 lb/d all year
001Oil & GreaseDAILY MX <= 156.4 lb/d all year
001Iron, total recoverableMO AVG report only all year
001Iron, total recoverableDAILY MX report only all year
001Iron, total recoverableMO AVG <= .67 lb/d all year
001Iron, total recoverableDAILY MX <= 1.4 lb/d all year
001Chromium, hexavalent [as Cr]MO AVG report only all year
001Chromium, hexavalent [as Cr]MO AVG report only all year
001Chromium, hexavalent [as Cr]DAILY MX report only all year
001Chromium, hexavalent [as Cr]DAILY MX report only all year
001Chromium, hexavalent [as Cr]MO AVG <= .2 lb/d all year
001Chromium, hexavalent [as Cr]MO AVG <= .13 lb/d all year
001Chromium, hexavalent [as Cr]DAILY MX <= .5 lb/d all year
001Chromium, hexavalent [as Cr]DAILY MX <= .4 lb/d all year
001Nickel, total recoverableMO AVG report only all year
001Nickel, total recoverableMO AVG report only all year
001Nickel, total recoverableDAILY MX report only all year
001Nickel, total recoverableDAILY MX report only all year
001Nickel, total recoverableMO AVG <= .3 lb/d all year
001Nickel, total recoverableMO AVG <= .28 lb/d all year
001Nickel, total recoverableDAILY MX <= .8 lb/d all year
001Nickel, total recoverableDAILY MX <= .84 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 <= 3.2 lb/d all year
001Zinc, total recoverableMO AVG <= 3.3 lb/d all year
001Zinc, total recoverableDAILY MX <= 9.8 lb/d all year
001Zinc, total recoverableDAILY MX <= 9.6 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 <= 2.3 lb/d all year
001Lead, total recoverableMO AVG <= 2 lb/d all year
001Lead, total recoverableDAILY MX <= 7 lb/d all year
001Lead, total recoverableDAILY MX <= 6 lb/d all year
001Chromium, total recoverableMO AVG report only all year
001Chromium, total recoverableMO AVG report only all year
001Chromium, total recoverableDAILY MX report only all year
001Chromium, total recoverableDAILY MX report only all year
001Chromium, total recoverableMO AVG <= .4 lb/d all year
001Chromium, total recoverableMO AVG <= .54 lb/d all year
001Chromium, total recoverableDAILY MX <= .9 lb/d all year
001Chromium, total recoverableDAILY MX <= 1.3 lb/d all year
001Copper, total recoverableMO AVG report only all year
001Copper, total recoverableDAILY MX report only all year
001Copper, total recoverableMO AVG <= .74 lb/d all year
001Copper, total recoverableDAILY MX <= 1.5 lb/d all year
001TetrachloroethyleneMO AVG report only all year
001TetrachloroethyleneMO AVG report only all year
001TetrachloroethyleneDAILY MX report only all year
001TetrachloroethyleneDAILY MX report only all year
001TetrachloroethyleneMO AVG <= .07 lb/d all year
001TetrachloroethyleneMO AVG <= .071 lb/d all year
001TetrachloroethyleneDAILY MX <= .1 lb/d all year
001TetrachloroethyleneDAILY MX <= .14 lb/d all year
001NaphthaleneMO AVG report only all year
001NaphthaleneMO AVG report only all year
001NaphthaleneDAILY MX report only all year
001NaphthaleneDAILY MX report only all year
001NaphthaleneMO AVG <= .05 lb/d all year
001NaphthaleneMO AVG <= .047 lb/d all year
001NaphthaleneDAILY MX <= .09 lb/d all year
001NaphthaleneDAILY MX <= .094 lb/d 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
001Cyanide, total recoverableMO AVG report only all year
001Cyanide, total recoverableDAILY MX report only all year
001Cyanide, total recoverableMO AVG <= .081 lb/d all year
001Cyanide, total recoverableDAILY MX <= .21 lb/d all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedMO AVG <= 100 mg/L all year
002Solids, total suspendedDAILY MX <= 150 mg/L all year
002Oil & GreaseMO AVG <= 10 mg/L all year
002Oil & GreaseDAILY MX <= 15 mg/L 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
TX1Whole effluent toxicity - retest #148HR MIN report only all year
TX1Whole effluent toxicity - retest #248HR MIN report only all year
TX1WET, sublethal retest #148HR 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, Sub-Lethal Retest #348HR 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
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
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

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