CONSOL Energy Mining Co. LLC - Meigs Mine No. 31

NPDES permit OH0022829 · 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 33 forms filed late

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

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 (64)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 35 mg/L all year
001Solids, total suspendedDAILY MX <= 70 mg/L all year
001Solids, settleableMO AVG report only all year
001Solids, settleableDAILY MX report only all year
001Chloride [as Cl]MO AVG report only all year
001Chloride [as Cl]DAILY MX report only all year
001Sulfate, total [as SO4]MO AVG report only all year
001Sulfate, total [as SO4]DAILY MX report only all year
001Iron, total [as Fe]MO AVG <= 3500 ug/L all year
001Iron, total [as Fe]DAILY MX <= 7000 ug/L all year
001Manganese, total [as Mn]MO AVG <= 2000 ug/L all year
001Manganese, total [as Mn]DAILY MX <= 4000 ug/L all year
001Copper, total recoverableMO AVG report only Jun
001Copper, total recoverableDAILY MX report only Jun
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 <= 1500 mg/L all year
005Temperature, water deg. centigradeMO AVG report only all year
005Temperature, water deg. centigradeDAILY MX report only all year
005Hydrogen peroxideDAILY MX <= .18 mg/L all year
005pHDAILY MN >= 6.5 SU all year
005pHDAILY MX <= 9 SU all year
005Solids, total suspendedMO AVG <= 35 mg/L all year
005Solids, total suspendedDAILY MX <= 70 mg/L all year
005Solids, total suspendedMO AVG <= 763 kg/d all year
005Solids, total suspendedDAILY MX <= 1530 kg/d all year
005Hardness, total [as CaCO3]MO AVG report only all year
005Hardness, total [as CaCO3]DAILY MX report only all year
005Chloride [as Cl]MO AVG report only all year
005Chloride [as Cl]DAILY MX report only all year
005Sulfate, total [as SO4]MO AVG report only all year
005Sulfate, total [as SO4]DAILY MX report only all year
005Iron, total [as Fe]MO AVG <= 3500 ug/L all year
005Iron, total [as Fe]DAILY MX <= 7000 ug/L all year
005Iron, total [as Fe]MO AVG <= 76.3 kg/d all year
005Iron, total [as Fe]DAILY MX <= 153 kg/d all year
005Manganese, total [as Mn]MO AVG <= 2000 ug/L all year
005Manganese, total [as Mn]DAILY MX <= 4000 ug/L all year
005Manganese, total [as Mn]MO AVG <= 43.6 kg/d all year
005Manganese, total [as Mn]DAILY MX <= 87.2 kg/d all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Mercury, total low levelMO AVG report only Jun, Dec
005Mercury, total low levelDAILY MX report only Jun, Dec
005Solids, total dissolved- 180 deg. CMO AVG report only all year
005Solids, total dissolved- 180 deg. CDAILY MX report only all year
006pHDAILY MN report only all year
006pHDAILY MX report only all year
006Solids, total suspendedMO AVG report only all year
006Solids, total suspendedDAILY MX report only all year
006Iron, total [as Fe]MO AVG report only all year
006Iron, total [as Fe]DAILY MX report only all year
006Manganese, total [as Mn]MO AVG report only all year
006Manganese, total [as Mn]DAILY MX report only all year
006Bypass VolumeMO AVG report only all year
006Bypass VolumeDAILY MX report only all year
006Solids, total dissolved- 180 deg. CMO AVG report only all year
006Solids, total dissolved- 180 deg. CDAILY MX report only all year
006Bypass valveMO AVG report only all year
006Bypass valveDAILY MX report only all year
006Bypass of treatmentMO AVG report only all year
006Bypass of treatmentDAILY 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