Muskingum Iron and Metal Co

NPDES permit OH0135216 · Minor NON-POTW · administratively continued, expires 2026-07-31 · 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 2026-07-31 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
0required values missing, on 0 form(s)
0of 22 forms filed late

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

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among OH permits in EPA's filings — check your permit).

Limits in force (28)

OutfallParameterStatisticLimitMonths
001Flow rateMO AVG report only all year
001Flow rateDAILY MX report only all year
001Dry days preceding precipitation eventMO AVG report only all year
001Dry days preceding precipitation eventDAILY MX report only all year
001Oxygen demand, chem. [low level] [COD]MO AVG report only Jun, Dec
001Oxygen demand, chem. [low level] [COD]DAILY MX report only Jun, Dec
001pHDAILY MN >= 6 SU Jun, Dec
001pHDAILY MX <= 9 SU Jun, Dec
001Solids, total suspendedMO AVG report only Jun, Dec
001Solids, total suspendedDAILY MX report only Jun, Dec
001Oil and grease [soxhlet extr.] tot.MO AVG report only Mar, Jun, Aug, Dec
001Oil and grease [soxhlet extr.] tot.DAILY MX report only Mar, Jun, Aug, Dec
001Hardness, total [as CaCO3]MO AVG report only Jun, Dec
001Hardness, total [as CaCO3]DAILY MX report only Jun, Dec
001Iron, total recoverableMO AVG report only Jun, Dec
001Iron, total recoverableDAILY MX report only Jun, Dec
001Zinc, total recoverableMO AVG report only Mar, Jun, Aug, Dec
001Zinc, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
001Lead, total recoverableMO AVG report only Mar, Jun, Aug, Dec
001Lead, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
001Copper, total recoverableMO AVG report only Mar, Jun, Aug, Dec
001Copper, total recoverableDAILY MX report only Mar, Jun, Aug, Dec
001RainfallMO AVG report only all year
001RainfallDAILY MX report only all year
001Mercury, total low levelMO AVG report only Mar, Jun, Aug, Dec
001Mercury, total low levelDAILY MX report only Mar, Jun, Aug, Dec
999Flow, in conduit or thru treatment plantMO AVG report only all year
999Flow, 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