Oregon Steel Mills LLC

NPDES permit OR0000451 · Minor NON-POTW · administratively continued, expires 2014-11-30 · 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.

This permit expired on 2014-11-30 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
0required values missing, on 0 form(s)
0of 26 forms filed late

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

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among OR permits in EPA's filings — check your permit).

Limits in force (23)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX report only all year
001Temperature, water deg. fahrenheitMX 7D AV report only all year
001TurbidityDAILY MX report only all year
001TurbidityDAILY MX report only all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedMO AVG <= 532 lb/d all year
001Solids, total suspendedDAILY MX <= 1420 lb/d all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Zinc, total recoverableVALUE report only all year
001Zinc, total recoverableMO AVG <= .117 lb/d all year
001Zinc, total recoverableDAILY MX <= .35 lb/d all year
001Lead, total recoverableVALUE report only all year
001Lead, total recoverableMO AVG <= .078 lb/d all year
001Lead, total recoverableDAILY MX <= .23 lb/d all year
001Flow, in conduit or thru treatment plantVALUE report only all year
001Flow, in conduit or thru treatment plantDAILY MX <= .79 MGD all year
001Chlorine, total residualMO AVG <= .17 mg/L all year
001Chlorine, total residualDAILY MX <= .34 mg/L all year
001Excess thermal load7 DA AVG <= 30 mkcal/day May, Jun, Jul, Aug, Sep, Oct
001Solids, total dissolvedMO AVG <= 1136 mg/L all year
001Report due [yrmoda]VALUE 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