CORNERSTONE MINING, LLC

NPDES permit WV1030311 · Minor NON-POTW · effective, expires 2031-06-05 · 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.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
615required values missing, on 18 form(s)
15of 33 forms filed late

Last period with anything received: 2026-03-31.

Reporting

Reports are due about 57 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (158)

OutfallParameterStatisticLimitMonths
001Flow rateMO AVG report only all year
001Flow rateMO MAX report only all year
001Specific conductanceMO MIN report only all year
001Specific conductanceMO AVG report only all year
001Specific conductanceMO MAX report only all year
001pHMO MIN >= 6 SU all year
001pHMO MAX <= 9 SU all year
001Solids, total suspendedMO MIN report only all year
001Solids, total suspendedMO AVG <= 35 mg/L all year
001Solids, total suspendedMO MAX <= 70 mg/L all year
001Solids, settleableMO MAX <= .5 mL/L all year
001Sulfate, total [as SO4]MO MIN report only all year
001Sulfate, total [as SO4]MO AVG report only all year
001Sulfate, total [as SO4]MO MAX report only all year
001Selenium, total recoverableMO MIN report only all year
001Selenium, total recoverableMO AVG <= 4.7 ug/L all year
001Selenium, total recoverableMO MAX <= 8.2 ug/L all year
001Iron, total [as Fe]MO MIN report only all year
001Iron, total [as Fe]MO AVG <= .95 mg/L all year
001Iron, total [as Fe]MO MAX <= 1.64 mg/L all year
001Manganese, total [as Mn]MO MIN report only all year
001Manganese, total [as Mn]MO AVG <= 2 mg/L all year
001Manganese, total [as Mn]MO MAX <= 4 mg/L all year
001Aluminum, total [as Al]MO MIN report only all year
001Aluminum, total [as Al]MO AVG <= 3 mg/L all year
001Aluminum, total [as Al]MO MAX <= 6 mg/L all year
001Aluminum, dissolved [as Al]MO MIN report only all year
001Aluminum, dissolved [as Al]MO AVG report only all year
001Aluminum, dissolved [as Al]MO MAX report only all year
001Solids, total dissolvedMO MIN report only all year
001Solids, total dissolvedMO AVG report only all year
001Solids, total dissolvedMO MAX report only all year
002Flow rateMO AVG report only all year
002Flow rateMO MAX report only all year
002Specific conductanceMO MIN report only all year
002Specific conductanceMO AVG report only all year
002Specific conductanceMO MAX report only all year
002pHMO MIN >= 6 SU all year
002pHMO MAX <= 9 SU all year
002Alkalinity, total [as CaCO3]MO MIN report only all year
002Alkalinity, total [as CaCO3]MO AVG report only all year
002Alkalinity, total [as CaCO3]MO MAX report only all year
002Solids, total suspendedMO MIN report only all year
002Solids, total suspendedMO AVG <= 35 mg/L all year
002Solids, total suspendedMO MAX <= 70 mg/L all year
002Solids, settleableMO MIN report only all year
002Solids, settleableMO AVG report only all year
002Solids, settleableMO MAX <= .5 mL/L all year
002Calcium, total [as Ca]MO MIN report only all year
002Calcium, total [as Ca]MO AVG report only all year
002Calcium, total [as Ca]MO MAX report only all year
002Magnesium, total [as Mg]MO MIN report only all year
002Magnesium, total [as Mg]MO AVG report only all year
002Magnesium, total [as Mg]MO MAX report only all year
002Sodium, total [as Na]MO MIN report only all year
002Sodium, total [as Na]MO AVG report only all year
002Sodium, total [as Na]MO MAX report only all year
002Potassium, total [as K]MO MIN report only all year
002Potassium, total [as K]MO AVG report only all year
002Potassium, total [as K]MO MAX report only all year
002Sulfate, total [as SO4]MO MIN report only all year
002Sulfate, total [as SO4]MO AVG report only all year
002Sulfate, total [as SO4]MO MAX report only all year
002Selenium, total recoverableMO MIN report only all year
002Selenium, total recoverableMO AVG <= 4.7 ug/L all year
002Selenium, total recoverableMO MAX <= 8.2 ug/L all year
002Iron, total [as Fe]MO MIN report only all year
002Iron, total [as Fe]MO AVG <= .22 mg/L all year
002Iron, total [as Fe]MO MAX <= .38 mg/L all year
002Manganese, total [as Mn]MO MIN report only all year
002Manganese, total [as Mn]MO AVG <= 2 mg/L all year
002Manganese, total [as Mn]MO MAX <= 4 mg/L all year
002Aluminum, total [as Al]MO MIN report only all year
002Aluminum, total [as Al]MO AVG <= .12 mg/L all year
002Aluminum, total [as Al]MO MAX <= .22 mg/L all year
002Aluminum, dissolved [as Al]MO MIN report only all year
002Aluminum, dissolved [as Al]MO AVG report only all year
002Aluminum, dissolved [as Al]MO MAX report only all year
002Toxicity [chronic], Ceriodaphnia dubiaMO MIN report only all year
002Toxicity [chronic], Ceriodaphnia dubiaMO AVG <= .82 tox chronic all year
002Toxicity [chronic], Ceriodaphnia dubiaMO MAX <= 1.64 tox chronic all year
002Solids, total dissolvedMO MIN report only all year
002Solids, total dissolvedMO AVG report only all year
002Solids, total dissolvedMO MAX report only all year
BASDS002Stream flow, instantaneousMO AVG report only all year
BASDS002Stream flow, instantaneousMO MAX report only all year
BASDS002Specific conductanceMO MIN report only all year
BASDS002Specific conductanceMO AVG report only all year
BASDS002Specific conductanceMO MAX report only all year
BASDS002pHMO MIN report only all year
BASDS002pHMO MAX report only all year
BASDS002Alkalinity, total [as CaCO3]MO MIN report only all year
BASDS002Alkalinity, total [as CaCO3]MO AVG report only all year
BASDS002Alkalinity, total [as CaCO3]MO MAX report only all year
BASDS002Solids, total suspendedMO MIN report only all year
BASDS002Solids, total suspendedMO AVG report only all year
BASDS002Solids, total suspendedMO MAX report only all year
BASDS002Calcium, total [as Ca]MO MIN report only all year
BASDS002Calcium, total [as Ca]MO AVG report only all year
BASDS002Calcium, total [as Ca]MO MAX report only all year
BASDS002Magnesium, total [as Mg]MO MIN report only all year
BASDS002Magnesium, total [as Mg]MO AVG report only all year
BASDS002Magnesium, total [as Mg]MO MAX report only all year
BASDS002Sodium, total [as Na]MO MIN report only all year
BASDS002Sodium, total [as Na]MO AVG report only all year
BASDS002Sodium, total [as Na]MO MAX report only all year
BASDS002Potassium, total [as K]MO MIN report only all year
BASDS002Potassium, total [as K]MO AVG report only all year
BASDS002Potassium, total [as K]MO MAX report only all year
BASDS002Sulfate, total [as SO4]MO MIN report only all year
BASDS002Sulfate, total [as SO4]MO AVG report only all year
BASDS002Sulfate, total [as SO4]MO MAX report only all year
BASDS002Selenium, total recoverableMO MIN report only all year
BASDS002Selenium, total recoverableMO AVG report only all year
BASDS002Selenium, total recoverableMO MAX report only all year
BASDS002Iron, total [as Fe]MO MIN report only all year
BASDS002Iron, total [as Fe]MO AVG report only all year
BASDS002Iron, total [as Fe]MO MAX report only all year
BASDS002Manganese, total [as Mn]MO MIN report only all year
BASDS002Manganese, total [as Mn]MO AVG report only all year
BASDS002Manganese, total [as Mn]MO MAX report only all year
BASDS002Aluminum, total [as Al]MO MIN report only all year
BASDS002Aluminum, total [as Al]MO AVG report only all year
BASDS002Aluminum, total [as Al]MO MAX report only all year
BASDS002Aluminum, dissolved [as Al]MO MIN report only all year
BASDS002Aluminum, dissolved [as Al]MO AVG report only all year
BASDS002Aluminum, dissolved [as Al]MO MAX report only all year
BASDS002Solids, total dissolvedMO MIN report only all year
BASDS002Solids, total dissolvedMO AVG report only all year
BASDS002Solids, total dissolvedMO MAX report only all year
DSLWB2Stream flow, instantaneousMO AVG report only all year
DSLWB2Stream flow, instantaneousMO MAX report only all year
DSLWB2Specific conductanceMO MIN report only all year
DSLWB2Specific conductanceMO AVG report only all year
DSLWB2Specific conductanceMO MAX report only all year
DSLWB2pHMO MIN report only all year
DSLWB2pHMO MAX report only all year
DSLWB2Sulfate, total [as SO4]MO MIN report only all year
DSLWB2Sulfate, total [as SO4]MO AVG report only all year
DSLWB2Sulfate, total [as SO4]MO MAX report only all year
DSLWB2Selenium, total recoverableMO MIN report only all year
DSLWB2Selenium, total recoverableMO AVG report only all year
DSLWB2Selenium, total recoverableMO MAX report only all year
DSLWB2Iron, total [as Fe]MO MIN report only all year
DSLWB2Iron, total [as Fe]MO AVG report only all year
DSLWB2Iron, total [as Fe]MO MAX report only all year
DSLWB2Manganese, total [as Mn]MO MIN report only all year
DSLWB2Manganese, total [as Mn]MO AVG report only all year
DSLWB2Manganese, total [as Mn]MO MAX report only all year
DSLWB2Aluminum, total [as Al]MO MIN report only all year
DSLWB2Aluminum, total [as Al]MO AVG report only all year
DSLWB2Aluminum, total [as Al]MO MAX report only all year
DSLWB2Aluminum, dissolved [as Al]MO MIN report only all year
DSLWB2Aluminum, dissolved [as Al]MO AVG report only all year
DSLWB2Aluminum, dissolved [as Al]MO MAX report only all year
DSLWB2Solids, total dissolvedMO MIN report only all year
DSLWB2Solids, total dissolvedMO AVG report only all year
DSLWB2Solids, total dissolvedMO MAX 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