Nucor Steel-Plymouth Division

NPDES permit UT0023850 · Minor NON-POTW · effective, expires 2029-01-31 · 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.

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

0values over a limit
0required values missing, on 0 form(s)
1of 11 forms filed late

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

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 (11)

OutfallParameterStatisticLimitMonths
001Flow rateDAILY MX <= .72 MGD all year
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001pHMINIMUM >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG <= 25 mg/L all year
001Solids, total suspendedMX WK AV <= 35 mg/L all year
001Selenium, total recoverableMX WK AV <= 22.83 ug/L all year
001Selenium, total recoverableDAILY MX <= 63.3 ug/L all year
001Oil and greaseDAILY MX <= 10 mg/L all year
001Solids, total dissolvedDAILY MX <= 7000 mg/L all year
001Oil and grease visualINST MAX <= 0 N=0;Y=1 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