Timken SMO, LLC

NPDES permit MO0001864 · Minor NON-POTW · administratively continued, expires 2025-12-31 · 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.

This permit expired on 2025-12-31 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
55required values missing, on 5 form(s)
20of 23 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 (53)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
001Temperature, water deg. fahrenheitMO AVG <= 90 deg F all year
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 90 mg/L all year
001Oxygen demand, chem. [high level] [COD]MO AVG <= 60 mg/L all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX <= 50 mg/L all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
001Oil and grease [soxhlet extr.] tot.MO AVG <= 10 mg/L all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG <= .5 mg/L all year
001Hardness, total [as CaCO3]DAILY MX report only all year
001Hardness, total [as CaCO3]MO AVG report only all year
001Zinc, total recoverableDAILY MX report only all year
001Zinc, total recoverableMO AVG report only all year
001Lead, total recoverableDAILY MX report only all year
001Lead, total recoverableMO AVG report only all year
001Oil petroleum, total recoverableDAILY MX report only all year
001Oil petroleum, total recoverableMO AVG report only all year
001TolueneDAILY MX report only all year
001TolueneMO AVG report only all year
001RainfallDAILY MX report only all year
001RainfallMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
002Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedDAILY MX report only all year
002Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
002Hardness, total [as CaCO3]DAILY MX report only all year
002Zinc, total recoverableDAILY MX report only all year
002Lead, total recoverableDAILY MX report only all year
002Oil petroleum, total recoverableDAILY MX report only all year
002TolueneDAILY MX report only all year
002RainfallDAILY MX report only all year
002Total Petroleum Hydrocarbons - DieselDAILY MX report only all year
002Total Petroleum Hydrocarbons - GasolineDAILY MX report only all year
002Storm water flowDAILY MX report only all year
003Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
003pHMINIMUM >= 6.5 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedDAILY MX report only all year
003Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
003Hardness, total [as CaCO3]DAILY MX report only all year
003Zinc, total recoverableDAILY MX report only all year
003Lead, total recoverableDAILY MX report only all year
003Oil petroleum, total recoverableDAILY MX report only all year
003RainfallDAILY MX report only all year
003Total Petroleum Hydrocarbons - DieselDAILY MX report only all year
003Total Petroleum Hydrocarbons - GasolineDAILY MX report only all year
003Storm water flowDAILY 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