U.S. Steel Corporation

NPDES permit UT0000361 · Minor NON-POTW · effective, expires 2031-03-31 · 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.

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

0values over a limit
0required values missing, on 0 form(s)
0of 11 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 UT permits in EPA's filings — check your permit).

Limits in force (18)

OutfallParameterStatisticLimitMonths
005TurbidityDAILY MX report only all year
005pHDAILY MN >= 6.5 SU all year
005pHDAILY MX <= 9 SU all year
005Oil & GreaseDAILY MX <= 10 mg/L all year
005Nitrogen, ammonia total [as N]MX MO AV <= 62 lb/d all year
005Nitrogen, ammonia total [as N]DAILY MX <= 210 lb/d all year
005Phosphorus, total [as P]DAILY MX report only all year
005Phenolics, total recoverableMX MO AV <= .12 lb/d all year
005Phenolics, total recoverableDAILY MX <= .25 lb/d all year
005BenzeneDAILY MX <= .12 lb/d all year
005Benzo[a]pyreneDAILY MX <= .12 lb/d all year
005NaphthaleneDAILY MX <= .12 lb/d all year
005Solids, total dissolvedDAILY MX report only all year
005Solids, total dissolvedMX MO AV <= 231 lb/d all year
005Solids, total dissolvedDAILY MX report only all year
005Flow, totalMX MO AV <= .02304 MGD all year
005Flow, totalDAILY MX report only all year
005Oil and grease visualDAILY MX <= 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