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Inmet Mining, LLC

Industrial or other facility, Monarch, Virginia. NPDES permit VAM081411, in force until Apr 28, 2027. Last 12 months: over a limit once (last January 2026), 1 required value missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: outfall 0254 form Q quarterly, outfall 0256 form Q quarterly, outfall 0257 form Q quarterly
Renewal application due
Oct 30, 2026 · 180 days before expiry; your permit may set another date
Last report on file
July 2026
Oct 2024 – Sep 2025
3 values over a limit, 18 required values missing, 0 of 36 reports late

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

Period endingParameterReportedLimitOver by
January 2026Solids, total suspended, daily maximum93≤ 70 mg/L33%

Limits in force (48)

ParameterStatisticLimitMonthsOutfall
pHinstantaneous minimum≥ 6 SUall year0254
pHinstantaneous maximum≤ 9 SUall year0254
Solids, total suspendeddaily minimumreport only (mg/L)all year0254
Solids, total suspendedmonthly average≤ 35 mg/Lall year0254
Solids, total suspendeddaily maximum≤ 70 mg/Lall year0254
Iron, total [as Fe]daily minimumreport only (mg/L)all year0254
Iron, total [as Fe]monthly average≤ 3 mg/Lall year0254
Iron, total [as Fe]daily maximum≤ 6 mg/Lall year0254
Manganese, total [as Mn]daily minimumreport only (mg/L)all year0254
Manganese, total [as Mn]monthly average≤ 2 mg/Lall year0254
Manganese, total [as Mn]daily maximum≤ 4 mg/Lall year0254
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year0254
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year0254
Solids, total dissolved [TDS]daily minimumreport only (mg/L)all year0254
Solids, total dissolved [TDS]monthly averagereport only (mg/L)all year0254
Solids, total dissolved [TDS]daily maximumreport only (mg/L)all year0254
pHinstantaneous minimum≥ 6 SUall year0256
pHinstantaneous maximum≤ 9 SUall year0256
Solids, total suspendeddaily minimumreport only (mg/L)all year0256
Solids, total suspendedmonthly average≤ 35 mg/Lall year0256
Solids, total suspendeddaily maximum≤ 70 mg/Lall year0256
Iron, total [as Fe]daily minimumreport only (mg/L)all year0256
Iron, total [as Fe]monthly average≤ 3 mg/Lall year0256
Iron, total [as Fe]daily maximum≤ 6 mg/Lall year0256
Manganese, total [as Mn]daily minimumreport only (mg/L)all year0256
Manganese, total [as Mn]monthly average≤ 2 mg/Lall year0256
Manganese, total [as Mn]daily maximum≤ 4 mg/Lall year0256
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year0256
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year0256
Solids, total dissolved [TDS]daily minimumreport only (mg/L)all year0256
Solids, total dissolved [TDS]monthly averagereport only (mg/L)all year0256
Solids, total dissolved [TDS]daily maximumreport only (mg/L)all year0256
pHinstantaneous minimum≥ 6 SUall year0257
pHinstantaneous maximum≤ 9 SUall year0257
Solids, total suspendeddaily minimumreport only (mg/L)all year0257
Solids, total suspendedmonthly average≤ 35 mg/Lall year0257
Solids, total suspendeddaily maximum≤ 70 mg/Lall year0257
Iron, total [as Fe]daily minimumreport only (mg/L)all year0257
Iron, total [as Fe]monthly average≤ 3 mg/Lall year0257
Iron, total [as Fe]daily maximum≤ 6 mg/Lall year0257
Manganese, total [as Mn]daily minimumreport only (mg/L)all year0257
Manganese, total [as Mn]monthly average≤ 2 mg/Lall year0257
Manganese, total [as Mn]daily maximum≤ 4 mg/Lall year0257
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year0257
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year0257
Solids, total dissolved [TDS]daily minimumreport only (mg/L)all year0257
Solids, total dissolved [TDS]monthly averagereport only (mg/L)all year0257
Solids, total dissolved [TDS]daily maximumreport only (mg/L)all year0257

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/VAM081411 · MCP: https://passage-data.com/mcp