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IperionX Critical Minerals, LLC

Metal Ores, Mansfield, Tennessee. NPDES permit TN0070711, in force until Aug 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form G quarterly (20 values), outfall 002 form G quarterly (20 values), outfall 003 form G quarterly (20 values), outfall 004 form G quarterly (20 values), outfall 005 form G quarterly (20 values), outfall 005 form T yearly, and 1 more form
Renewal application due
Mar 4, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 62 reports late

Limits in force (108)

ParameterStatisticLimitMonthsOutfall
pHdaily minimum≥ 6 SUall year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 20 mg/Lall year001
Solids, total suspendedmonthly average≤ 20 mg/Lall year001
Solids, total suspendeddaily maximum≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 30 mg/Lall year001
Iron, total [as Fe]monthly average≤ 1 mg/Lall year001
Iron, total [as Fe]monthly average≤ 1 mg/Lall year001
Iron, total [as Fe]daily maximum≤ 2 mg/Lall year001
Iron, total [as Fe]daily maximum≤ 2 mg/Lall year001
Zinc, total [as Zn]monthly average≤ .5 mg/Lall year001
Zinc, total [as Zn]monthly average≤ .5 mg/Lall year001
Zinc, total [as Zn]daily maximum≤ 1 mg/Lall year001
Zinc, total [as Zn]daily maximum≤ 1 mg/Lall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
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≤ 1 mg/Lall year002
Iron, total [as Fe]monthly average≤ 1 mg/Lall year002
Iron, total [as Fe]daily maximum≤ 2 mg/Lall year002
Iron, total [as Fe]daily maximum≤ 2 mg/Lall year002
Zinc, total [as Zn]monthly average≤ .5 mg/Lall year002
Zinc, total [as Zn]monthly average≤ .5 mg/Lall year002
Zinc, total [as Zn]daily maximum≤ 1 mg/Lall year002
Zinc, total [as Zn]daily maximum≤ 1 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≤ 1 mg/Lall year003
Iron, total [as Fe]monthly average≤ 1 mg/Lall year003
Iron, total [as Fe]daily maximum≤ 2 mg/Lall year003
Iron, total [as Fe]daily maximum≤ 2 mg/Lall year003
Zinc, total [as Zn]monthly average≤ .5 mg/Lall year003
Zinc, total [as Zn]monthly average≤ .5 mg/Lall year003
Zinc, total [as Zn]daily maximum≤ 1 mg/Lall year003
Zinc, total [as Zn]daily maximum≤ 1 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≤ 1 mg/Lall year004
Iron, total [as Fe]monthly average≤ 1 mg/Lall year004
Iron, total [as Fe]daily maximum≤ 2 mg/Lall year004
Iron, total [as Fe]daily maximum≤ 2 mg/Lall year004
Zinc, total [as Zn]monthly average≤ .5 mg/Lall year004
Zinc, total [as Zn]monthly average≤ .5 mg/Lall year004
Zinc, total [as Zn]daily maximum≤ 1 mg/Lall year004
Zinc, total [as Zn]daily maximum≤ 1 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
pHdaily minimum≥ 6 SUall year005
pHdaily minimum≥ 6 SUall year005
pHdaily maximum≤ 9 SUall year005
pHdaily maximum≤ 9 SUall year005
Solids, total suspendedmonthly average≤ 20 ug/Lall year005
Solids, total suspendedmonthly average≤ 20 ug/Lall year005
Solids, total suspendeddaily maximum≤ 30 ug/Lall year005
Solids, total suspendeddaily maximum≤ 30 ug/Lall year005
Iron, total [as Fe]monthly average≤ 1 mg/Lall year005
Iron, total [as Fe]monthly average≤ 1 mg/Lall year005
Iron, total [as Fe]daily maximum≤ 2 mg/Lall year005
Iron, total [as Fe]daily maximum≤ 2 mg/Lall year005
Zinc, total [as Zn]monthly average≤ .5 mg/Lall year005
Zinc, total [as Zn]monthly average≤ .5 mg/Lall year005
Zinc, total [as Zn]daily maximum≤ 1 mg/Lall year005
Zinc, total [as Zn]daily maximum≤ 1 mg/Lall year005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year005
LC50 Static 48Hr Acute Ceriodaphnia dubiaminimum≥ 100 %all year005
LC50 Static 48Hr Acute Pimephales promelasminimum≥ 100 %all year005
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 100 %all year005
IC25 Static Renewal 7 Day Chronic Pimephalesminimum≥ 100 %all year005
pHminimum≥ 6 SU (alert, not enforceable)all yearSW1
pHmaximum≤ 9 SU (alert, not enforceable)all yearSW1
Solids, total suspendedmaximum≤ 150 mg/L (alert, not enforceable)all yearSW1
Oil & Greasemaximum≤ 15 mg/L (alert, not enforceable)all yearSW1

How strict are these limits?

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

Same industry: the 10 Metal Mining permits in Tennessee.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TN0070711 · MCP: https://passage-data.com/mcp