Nucor Steel Decatur LLC

NPDES permit AL0070068 · Minor NON-POTW · effective, expires 2028-10-31 · 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 45 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 AL permits in EPA's filings — check your permit).

Limits in force (120)

OutfallParameterStatisticLimitMonths
001pHDAILY MN report only all year
001pHDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Phosphorus, total [as P]DAILY MX report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Lead, total [as Pb]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Aluminum, total [as Al]DAILY MX report only all year
001TolueneDAILY MX report only all year
001BenzeneDAILY MX report only all year
001EthylbenzeneDAILY MX report only all year
001NaphthaleneDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Solids, total dissolvedMAXIMUM report only all year
001Chemical Oxygen Demand [COD]DAILY MX report only all year
001Xylene [mix of m+o+p]DAILY MX report only all year
002pHDAILY MN report only all year
002pHDAILY MX report only all year
002Solids, total suspendedDAILY MX report only all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Phosphorus, total [as P]DAILY MX report only all year
002Chromium, total [as Cr]DAILY MX report only all year
002Copper, total [as Cu]DAILY MX report only all year
002Lead, total [as Pb]DAILY MX report only all year
002Zinc, total [as Zn]DAILY MX report only all year
002Aluminum, total [as Al]DAILY MX report only all year
002TolueneDAILY MX report only all year
002BenzeneDAILY MX report only all year
002EthylbenzeneDAILY MX report only all year
002NaphthaleneDAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Solids, total dissolvedMAXIMUM report only all year
002Chemical Oxygen Demand [COD]DAILY MX report only all year
002Xylene [mix of m+o+p]DAILY MX report only all year
003pHDAILY MN report only all year
003pHDAILY MX report only all year
003Solids, total suspendedDAILY MX report only all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Phosphorus, total [as P]DAILY MX report only all year
003Chromium, total [as Cr]DAILY MX report only all year
003Copper, total [as Cu]DAILY MX report only all year
003Lead, total [as Pb]DAILY MX report only all year
003Zinc, total [as Zn]DAILY MX report only all year
003Aluminum, total [as Al]DAILY MX report only all year
003TolueneDAILY MX report only all year
003BenzeneDAILY MX report only all year
003EthylbenzeneDAILY MX report only all year
003NaphthaleneDAILY MX report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Solids, total dissolvedMAXIMUM report only all year
003Chemical Oxygen Demand [COD]DAILY MX report only all year
003Xylene [mix of m+o+p]DAILY MX report only all year
004pHDAILY MN report only all year
004pHDAILY MX report only all year
004Solids, total suspendedDAILY MX report only all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Phosphorus, total [as P]DAILY MX report only all year
004Chromium, total [as Cr]DAILY MX report only all year
004Copper, total [as Cu]DAILY MX report only all year
004Lead, total [as Pb]DAILY MX report only all year
004Zinc, total [as Zn]DAILY MX report only all year
004Aluminum, total [as Al]DAILY MX report only all year
004TolueneDAILY MX report only all year
004BenzeneDAILY MX report only all year
004EthylbenzeneDAILY MX report only all year
004NaphthaleneDAILY MX report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Solids, total dissolvedMAXIMUM report only all year
004Chemical Oxygen Demand [COD]DAILY MX report only all year
004Xylene [mix of m+o+p]DAILY MX report only all year
007pHDAILY MN report only all year
007pHDAILY MX report only all year
007Solids, total suspendedDAILY MX report only all year
007Oil & GreaseDAILY MX <= 15 mg/L all year
007Phosphorus, total [as P]DAILY MX report only all year
007Chromium, total [as Cr]DAILY MX report only all year
007Copper, total [as Cu]DAILY MX report only all year
007Lead, total [as Pb]DAILY MX report only all year
007Zinc, total [as Zn]DAILY MX report only all year
007Aluminum, total [as Al]DAILY MX report only all year
007TolueneDAILY MX report only all year
007BenzeneDAILY MX report only all year
007EthylbenzeneDAILY MX report only all year
007NaphthaleneDAILY MX report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
007Solids, total dissolvedMAXIMUM report only all year
007Chemical Oxygen Demand [COD]DAILY MX report only all year
007Xylene [mix of m+o+p]DAILY MX report only all year
011pHDAILY MN report only all year
011pHDAILY MX report only all year
011Solids, total suspendedDAILY MX report only all year
011Oil & GreaseDAILY MX <= 15 mg/L all year
011Phosphorus, total [as P]DAILY MX report only all year
011Chromium, total [as Cr]DAILY MX report only all year
011Copper, total [as Cu]DAILY MX report only all year
011Lead, total [as Pb]DAILY MX report only all year
011Zinc, total [as Zn]DAILY MX report only all year
011Aluminum, total [as Al]DAILY MX report only all year
011TolueneDAILY MX report only all year
011BenzeneDAILY MX report only all year
011EthylbenzeneDAILY MX report only all year
011NaphthaleneDAILY MX report only all year
011Flow, in conduit or thru treatment plantDAILY MX report only all year
011Solids, total dissolvedMAXIMUM report only all year
011Chemical Oxygen Demand [COD]DAILY MX report only all year
011Xylene [mix of m+o+p]DAILY MX report only all year
07ApHDAILY MN >= 6 SU all year
07ApHDAILY MX <= 8.5 SU all year
07APhosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
07AFlow, in conduit or thru treatment plantDAILY MX report only all year
07BpHDAILY MN >= 6 SU all year
07BpHDAILY MX <= 8.5 SU all year
07BPhosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
07BFlow, in conduit or thru treatment plantDAILY MX report only all year
07CpHDAILY MN >= 6 SU all year
07CpHDAILY MX <= 8.5 SU all year
07CPhosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
07CFlow, in conduit or thru treatment plantDAILY MX 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