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The Black Diamond Company

Bituminous Coal - Underground, Grundy, Virginia. NPDES permit VAM089037, in force until May 29, 2027. Last 12 months: over a limit 8 times (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form Q quarterly (16 values)
Renewal application due
Nov 30, 2026 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 12 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
October 2025Manganese, total [as Mn], daily maximum6.6≤ 4 mg/L65%
October 2025Manganese, total [as Mn], monthly average3.3≤ 2 mg/L65%
November 2025Manganese, total [as Mn], daily maximum4.8≤ 4 mg/L20%
November 2025Manganese, total [as Mn], monthly average2.4≤ 2 mg/L20%
February 2026Manganese, total [as Mn], daily maximum6.1≤ 4 mg/L53%
February 2026Manganese, total [as Mn], monthly average2.3≤ 2 mg/L15%
May 2026Manganese, total [as Mn], daily maximum5.2≤ 4 mg/L30%
May 2026Manganese, total [as Mn], monthly average3.85≤ 2 mg/L93%

Limits in force (16)

ParameterStatisticLimitMonths
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendeddaily minimumreport only (mg/L)all year
Solids, total suspendedmonthly average≤ 35 mg/Lall year
Solids, total suspendeddaily maximum≤ 70 mg/Lall year
Iron, total [as Fe]daily minimumreport only (mg/L)all year
Iron, total [as Fe]monthly average≤ 3 mg/Lall year
Iron, total [as Fe]daily maximum≤ 6 mg/Lall year
Manganese, total [as Mn]daily minimumreport only (mg/L)all year
Manganese, total [as Mn]monthly average≤ 2 mg/Lall year
Manganese, total [as Mn]daily maximum≤ 4 mg/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year
Solids, total dissolved [TDS]daily minimumreport only (mg/L)all year
Solids, total dissolved [TDS]monthly averagereport only (mg/L)all year
Solids, total dissolved [TDS]daily maximumreport only (mg/L)all year

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

Same industry: the 169 Coal Mining permits in Virginia.

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/VAM089037 · MCP: https://passage-data.com/mcp