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Imerys Refractory Minerals USA, Inc.

Metal Ores, Eufaula, Alabama. NPDES permit AL0078077, in force until May 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 002 form 1 quarterly (20 values), outfall 003 form 1 quarterly (20 values), outfall 004 form 1 quarterly (20 values)
Renewal application due
Dec 2, 2026 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 36 reports late

Limits in force (60)

ParameterStatisticLimitMonthsOutfall
pHdaily minimum≥ 6 SUall year002
pHdaily minimum≥ 6 SUall year002
pHdaily maximum≤ 9 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 20 mg/Lall year002
Solids, total suspendedmonthly average≤ 20 mg/Lall year002
Solids, total suspendeddaily maximum≤ 30 mg/Lall year002
Solids, total suspendeddaily maximum≤ 30 mg/Lall year002
Iron, total [as Fe]monthly average≤ .5 mg/Lall year002
Iron, total [as Fe]monthly average≤ .5 mg/Lall year002
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year002
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year002
Aluminum, total [as Al]monthly average≤ 1 mg/Lall year002
Aluminum, total [as Al]monthly average≤ 1 mg/Lall year002
Aluminum, total [as Al]daily maximum≤ 2 mg/Lall year002
Aluminum, total [as Al]daily maximum≤ 2 mg/Lall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
pHdaily minimum≥ 6 SUall year003
pHdaily minimum≥ 6 SUall year003
pHdaily maximum≤ 9 SUall year003
pHdaily maximum≤ 9 SUall year003
Solids, total suspendedmonthly average≤ 20 mg/Lall year003
Solids, total suspendedmonthly average≤ 20 mg/Lall year003
Solids, total suspendeddaily maximum≤ 30 mg/Lall year003
Solids, total suspendeddaily maximum≤ 30 mg/Lall year003
Iron, total [as Fe]monthly average≤ .5 mg/Lall year003
Iron, total [as Fe]monthly average≤ .5 mg/Lall year003
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year003
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year003
Aluminum, total [as Al]monthly average≤ 1 mg/Lall year003
Aluminum, total [as Al]monthly average≤ 1 mg/Lall year003
Aluminum, total [as Al]daily maximum≤ 2 mg/Lall year003
Aluminum, total [as Al]daily maximum≤ 2 mg/Lall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
pHdaily minimum≥ 6 SUall year004
pHdaily minimum≥ 6 SUall year004
pHdaily maximum≤ 9 SUall year004
pHdaily maximum≤ 9 SUall year004
Solids, total suspendedmonthly average≤ 20 mg/Lall year004
Solids, total suspendedmonthly average≤ 20 mg/Lall year004
Solids, total suspendeddaily maximum≤ 30 mg/Lall year004
Solids, total suspendeddaily maximum≤ 30 mg/Lall year004
Iron, total [as Fe]monthly average≤ .5 mg/Lall year004
Iron, total [as Fe]monthly average≤ .5 mg/Lall year004
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year004
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year004
Aluminum, total [as Al]monthly average≤ 1 mg/Lall year004
Aluminum, total [as Al]monthly average≤ 1 mg/Lall year004
Aluminum, total [as Al]daily maximum≤ 2 mg/Lall year004
Aluminum, total [as Al]daily maximum≤ 2 mg/Lall year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004

How strict are these limits?

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

Same industry: the 9 Metal Mining permits in Alabama.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/AL0078077 · MCP: https://passage-data.com/mcp