Subtropolis Mining Co

NPDES permit OH0129895 · Minor NON-POTW · expired, expires 2026-03-31 · 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.

This permit expired on 2026-03-31 and is expired: 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

5values over a limit
0required values missing, on 0 form(s)
0of 48 forms filed late

Last period with anything received: 2026-07-31. Most often over: Solids, total suspended (3), pH (2).

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (38)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001RainfallMO AVG report only all year
001RainfallDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Solids, total dissolved- 180 deg. CMO AVG report only Mar, Jun, Sep, Dec
001Solids, total dissolved- 180 deg. CDAILY MX report only Mar, Jun, Sep, Dec
002pHDAILY MN >= 6.5 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspendedMO AVG <= 30 mg/L all year
002Solids, total suspendedDAILY MX <= 45 mg/L all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Solids, total dissolved- 180 deg. CMO AVG report only Mar, Jun, Sep, Dec
002Solids, total dissolved- 180 deg. CDAILY MX report only Mar, Jun, Sep, Dec
003pHDAILY MN >= 6.5 SU all year
003pHDAILY MX <= 9 SU all year
003Solids, total suspendedMO AVG <= 30 mg/L all year
003Solids, total suspendedDAILY MX <= 45 mg/L all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Solids, total dissolved- 180 deg. CMO AVG report only Mar, Jun, Sep, Dec
003Solids, total dissolved- 180 deg. CDAILY MX report only Mar, Jun, Sep, Dec
004pHDAILY MN >= 6.5 SU all year
004pHDAILY MX <= 9 SU all year
004Solids, total suspendedMO AVG <= 30 mg/L all year
004Solids, total suspendedDAILY MX <= 45 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Solids, total dissolved- 180 deg. CMO AVG report only Mar, Jun, Sep, Dec
004Solids, total dissolved- 180 deg. CDAILY MX report only Mar, Jun, Sep, Dec
006pHDAILY MN >= 6.5 SU Mar, Jun, Sep, Dec
006pHDAILY MX <= 9 SU Mar, Jun, Sep, Dec
006Solids, total suspendedMO AVG report only Mar, Jun, Sep, Dec
006Solids, total suspendedDAILY MX report only Mar, Jun, Sep, Dec

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