Passage Data · Check a report · Use it from your AI

Mepco, LLC

Bituminous Coal And Lignite - Surface, Maidsville, West Virginia. NPDES permit WV1007751, in force until Oct 2, 2030. Last 12 months: no values over a limit, 21 required values missing, 9 of 27 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 87 days after each period: outfall 005 form Q quarterly, outfall DGR-1 form Q quarterly, outfall UGR-1 form Q quarterly
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 24 required values missing, 0 of 36 reports late

Limits in force (72)

ParameterStatisticLimitMonthsOutfall
Flow ratemonthly averagereport only (gal/min)all year005
Flow ratemonthly maximumreport only (gal/min)all year005
Specific conductancemonthly minimumreport only (umho/cm)all year005
Specific conductancemonthly averagereport only (umho/cm)all year005
Specific conductancemonthly maximumreport only (umho/cm)all year005
pHmonthly minimum≥ 6 SUall year005
pHmonthly maximum≤ 9 SUall year005
Solids, total suspendedmonthly minimumreport only (mg/L)all year005
Solids, total suspendedmonthly average≤ 35 mg/Lall year005
Solids, total suspendedmonthly maximum≤ 70 mg/Lall year005
Solids, settleablemonthly minimumreport only (mL/L)all year005
Solids, settleablemonthly averagereport only (mL/L)all year005
Solids, settleablemonthly maximum≤ .5 mL/Lall year005
Sulfate, total [as SO4]monthly minimumreport only (mg/L)all year005
Sulfate, total [as SO4]monthly averagereport only (mg/L)all year005
Sulfate, total [as SO4]monthly maximumreport only (mg/L)all year005
Iron, total [as Fe]monthly minimumreport only (mg/L)all year005
Iron, total [as Fe]monthly average≤ 1.42 mg/Lall year005
Iron, total [as Fe]monthly maximum≤ 2.46 mg/Lall year005
Aluminum, total [as Al]monthly minimumreport only (mg/L)all year005
Aluminum, total [as Al]monthly average≤ .43 mg/Lall year005
Aluminum, total [as Al]monthly maximum≤ .75 mg/Lall year005
Aluminum, dissolved [as Al]monthly minimumreport only (mg/L)all year005
Aluminum, dissolved [as Al]monthly averagereport only (mg/L)all year005
Aluminum, dissolved [as Al]monthly maximumreport only (mg/L)all year005
Solids, total dissolvedmonthly minimumreport only (mg/L)all year005
Solids, total dissolvedmonthly averagereport only (mg/L)all year005
Solids, total dissolvedmonthly maximumreport only (mg/L)all year005
Stream flow, instantaneousmonthly averagereport only (cfs)all yearDGR-1
Stream flow, instantaneousmonthly maximumreport only (cfs)all yearDGR-1
Specific conductancemonthly minimumreport only (umho/cm)all yearDGR-1
Specific conductancemonthly averagereport only (umho/cm)all yearDGR-1
Specific conductancemonthly maximumreport only (umho/cm)all yearDGR-1
pHmonthly minimumreport only (SU)all yearDGR-1
pHmonthly maximumreport only (SU)all yearDGR-1
Sulfate, total [as SO4]monthly minimumreport only (mg/L)all yearDGR-1
Sulfate, total [as SO4]monthly averagereport only (mg/L)all yearDGR-1
Sulfate, total [as SO4]monthly maximumreport only (mg/L)all yearDGR-1
Iron, total [as Fe]monthly minimumreport only (mg/L)all yearDGR-1
Iron, total [as Fe]monthly averagereport only (mg/L)all yearDGR-1
Iron, total [as Fe]monthly maximumreport only (mg/L)all yearDGR-1
Aluminum, total [as Al]monthly minimumreport only (mg/L)all yearDGR-1
Aluminum, total [as Al]monthly averagereport only (mg/L)all yearDGR-1
Aluminum, total [as Al]monthly maximumreport only (mg/L)all yearDGR-1
Aluminum, dissolved [as Al]monthly minimumreport only (mg/L)all yearDGR-1
Aluminum, dissolved [as Al]monthly averagereport only (mg/L)all yearDGR-1
Aluminum, dissolved [as Al]monthly maximumreport only (mg/L)all yearDGR-1
Solids, total dissolvedmonthly minimumreport only (mg/L)all yearDGR-1
Solids, total dissolvedmonthly averagereport only (mg/L)all yearDGR-1
Solids, total dissolvedmonthly maximumreport only (mg/L)all yearDGR-1
Stream flow, instantaneousmonthly averagereport only (cfs)all yearUGR-1
Stream flow, instantaneousmonthly maximumreport only (cfs)all yearUGR-1
Specific conductancemonthly minimumreport only (umho/cm)all yearUGR-1
Specific conductancemonthly averagereport only (umho/cm)all yearUGR-1
Specific conductancemonthly maximumreport only (umho/cm)all yearUGR-1
pHmonthly minimumreport only (SU)all yearUGR-1
pHmonthly maximumreport only (SU)all yearUGR-1
Sulfate, total [as SO4]monthly minimumreport only (mg/L)all yearUGR-1
Sulfate, total [as SO4]monthly averagereport only (mg/L)all yearUGR-1
Sulfate, total [as SO4]monthly maximumreport only (mg/L)all yearUGR-1
Iron, total [as Fe]monthly minimumreport only (mg/L)all yearUGR-1
Iron, total [as Fe]monthly averagereport only (mg/L)all yearUGR-1
Iron, total [as Fe]monthly maximumreport only (mg/L)all yearUGR-1
Aluminum, total [as Al]monthly minimumreport only (mg/L)all yearUGR-1
Aluminum, total [as Al]monthly averagereport only (mg/L)all yearUGR-1
Aluminum, total [as Al]monthly maximumreport only (mg/L)all yearUGR-1
Aluminum, dissolved [as Al]monthly minimumreport only (mg/L)all yearUGR-1
Aluminum, dissolved [as Al]monthly averagereport only (mg/L)all yearUGR-1
Aluminum, dissolved [as Al]monthly maximumreport only (mg/L)all yearUGR-1
Solids, total dissolvedmonthly minimumreport only (mg/L)all yearUGR-1
Solids, total dissolvedmonthly averagereport only (mg/L)all yearUGR-1
Solids, total dissolvedmonthly maximumreport only (mg/L)all yearUGR-1

How strict are these limits?

Cited limits by parameter: West Virginia's rules and the federal ones.

Same industry: the 1,301 Coal Mining permits in West Virginia.

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WV1007751 · MCP: https://passage-data.com/mcp