CENTURY MINING, LLC

NPDES permit WV1027093 · Minor NON-POTW · effective, expires 2030-03-24 · 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
86required values missing, on 5 form(s)
7of 39 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 87 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (130)

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
001Alkalinity, total [as CaCO3]MO MIN report only all year
001Alkalinity, total [as CaCO3]MO AVG report only all year
001Alkalinity, total [as CaCO3]MO MAX report only 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
001Calcium, total [as Ca]MO MIN report only all year
001Calcium, total [as Ca]MO AVG report only all year
001Calcium, total [as Ca]MO MAX report only all year
001Magnesium, total [as Mg]MO MIN report only all year
001Magnesium, total [as Mg]MO AVG report only all year
001Magnesium, total [as Mg]MO MAX report only all year
001Sodium, total [as Na]MO MIN report only all year
001Sodium, total [as Na]MO AVG report only all year
001Sodium, total [as Na]MO MAX report only all year
001Potassium, total [as K]MO MIN report only all year
001Potassium, total [as K]MO AVG report only all year
001Potassium, total [as K]MO MAX report only 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 report only all year
001Selenium, total recoverableMO MAX report only all year
001Iron, total [as Fe]MO MIN report only all year
001Iron, total [as Fe]MO AVG <= .87 mg/L all year
001Iron, total [as Fe]MO MAX <= 1.51 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 <= .4 mg/L all year
001Aluminum, total [as Al]MO MAX <= .69 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
001Selenium, dry weightMAXIMUM <= 8 mg/kg all year
001Selenium, dry weightMAXIMUM <= 8 mg/kg all year
001Toxicity [chronic], Ceriodaphnia dubiaMO MIN report only all year
001Toxicity [chronic], Ceriodaphnia dubiaMO AVG <= .82 tox chronic all year
001Toxicity [chronic], Ceriodaphnia dubiaMO MAX <= 1.64 tox chronic 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
BAS DWRStream flow, instantaneousMO AVG report only all year
BAS DWRStream flow, instantaneousMO MAX report only all year
BAS DWRSpecific conductanceMO MIN report only all year
BAS DWRSpecific conductanceMO AVG report only all year
BAS DWRSpecific conductanceMO MAX report only all year
BAS DWRpHMO MIN report only all year
BAS DWRpHMO MAX report only all year
BAS DWRAlkalinity, total [as CaCO3]MO MIN report only all year
BAS DWRAlkalinity, total [as CaCO3]MO AVG report only all year
BAS DWRAlkalinity, total [as CaCO3]MO MAX report only all year
BAS DWRCalcium, total [as Ca]MO MIN report only all year
BAS DWRCalcium, total [as Ca]MO AVG report only all year
BAS DWRCalcium, total [as Ca]MO MAX report only all year
BAS DWRMagnesium, total [as Mg]MO MIN report only all year
BAS DWRMagnesium, total [as Mg]MO AVG report only all year
BAS DWRMagnesium, total [as Mg]MO MAX report only all year
BAS DWRSodium, total [as Na]MO MIN report only all year
BAS DWRSodium, total [as Na]MO AVG report only all year
BAS DWRSodium, total [as Na]MO MAX report only all year
BAS DWRPotassium, total [as K]MO MIN report only all year
BAS DWRPotassium, total [as K]MO AVG report only all year
BAS DWRPotassium, total [as K]MO MAX report only all year
BAS DWRSulfate, total [as SO4]MO MIN report only all year
BAS DWRSulfate, total [as SO4]MO AVG report only all year
BAS DWRSulfate, total [as SO4]MO MAX report only all year
BAS DWRSelenium, total recoverableMO MIN report only all year
BAS DWRSelenium, total recoverableMO AVG report only all year
BAS DWRSelenium, total recoverableMO MAX report only all year
BAS DWRIron, total [as Fe]MO MIN report only all year
BAS DWRIron, total [as Fe]MO AVG report only all year
BAS DWRIron, total [as Fe]MO MAX report only all year
BAS DWRManganese, total [as Mn]MO MIN report only all year
BAS DWRManganese, total [as Mn]MO AVG report only all year
BAS DWRManganese, total [as Mn]MO MAX report only all year
BAS DWRAluminum, total [as Al]MO MIN report only all year
BAS DWRAluminum, total [as Al]MO AVG report only all year
BAS DWRAluminum, total [as Al]MO MAX report only all year
BAS DWRAluminum, dissolved [as Al]MO MIN report only all year
BAS DWRAluminum, dissolved [as Al]MO AVG report only all year
BAS DWRAluminum, dissolved [as Al]MO MAX report only all year
BAS DWRSolids, total dissolvedMO MIN report only all year
BAS DWRSolids, total dissolvedMO AVG report only all year
BAS DWRSolids, total dissolvedMO MAX report only all year
DWR BWQ-1228-96Stream flow, instantaneousMO AVG report only all year
DWR BWQ-1228-96Stream flow, instantaneousMO MAX report only all year
DWR BWQ-1228-96Specific conductanceMO MIN report only all year
DWR BWQ-1228-96Specific conductanceMO AVG report only all year
DWR BWQ-1228-96Specific conductanceMO MAX report only all year
DWR BWQ-1228-96pHMO MIN report only all year
DWR BWQ-1228-96pHMO MAX report only all year
DWR BWQ-1228-96Sulfate, total [as SO4]MO MIN report only all year
DWR BWQ-1228-96Sulfate, total [as SO4]MO AVG report only all year
DWR BWQ-1228-96Sulfate, total [as SO4]MO MAX report only all year
DWR BWQ-1228-96Selenium, total recoverableMO MIN report only all year
DWR BWQ-1228-96Selenium, total recoverableMO AVG report only all year
DWR BWQ-1228-96Selenium, total recoverableMO MAX report only all year
DWR BWQ-1228-96Iron, total [as Fe]MO MIN report only all year
DWR BWQ-1228-96Iron, total [as Fe]MO AVG report only all year
DWR BWQ-1228-96Iron, total [as Fe]MO MAX report only all year
DWR BWQ-1228-96Manganese, total [as Mn]MO MIN report only all year
DWR BWQ-1228-96Manganese, total [as Mn]MO AVG report only all year
DWR BWQ-1228-96Manganese, total [as Mn]MO MAX report only all year
DWR BWQ-1228-96Aluminum, total [as Al]MO MIN report only all year
DWR BWQ-1228-96Aluminum, total [as Al]MO AVG report only all year
DWR BWQ-1228-96Aluminum, total [as Al]MO MAX report only all year
DWR BWQ-1228-96Aluminum, dissolved [as Al]MO MIN report only all year
DWR BWQ-1228-96Aluminum, dissolved [as Al]MO AVG report only all year
DWR BWQ-1228-96Aluminum, dissolved [as Al]MO MAX report only all year
DWR BWQ-1228-96Solids, total dissolvedMO MIN report only all year
DWR BWQ-1228-96Solids, total dissolvedMO AVG report only all year
DWR BWQ-1228-96Solids, total dissolvedMO MAX report only all year
WR-1Stream flow, instantaneousMO AVG report only all year
WR-1Stream flow, instantaneousMO MAX report only all year
WR-1pHMO MIN report only all year
WR-1pHMO MAX report only all year
WR-1Selenium, total recoverableMO MIN report only all year
WR-1Selenium, total recoverableMO AVG report only all year
WR-1Selenium, total recoverableMO 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