IperionX Critical Minerals, LLC

NPDES permit TN0070711 · Minor NON-POTW · effective, expires 2028-08-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 52 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among TN permits in EPA's filings — check your permit).

Limits in force (108)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6 SU all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Iron, total [as Fe]MO AVG <= 1 mg/L all year
001Iron, total [as Fe]MO AVG <= 1 mg/L all year
001Iron, total [as Fe]DAILY MX <= 2 mg/L all year
001Iron, total [as Fe]DAILY MX <= 2 mg/L all year
001Zinc, total [as Zn]MO AVG <= .5 mg/L all year
001Zinc, total [as Zn]MO AVG <= .5 mg/L all year
001Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
001Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
002pHDAILY MN >= 6 SU all year
002pHDAILY MN >= 6 SU all year
002pHDAILY MX <= 9 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspendedMO AVG <= 20 mg/L all year
002Solids, total suspendedMO AVG <= 20 mg/L all year
002Solids, total suspendedDAILY MX <= 30 mg/L all year
002Solids, total suspendedDAILY MX <= 30 mg/L all year
002Iron, total [as Fe]MO AVG <= 1 mg/L all year
002Iron, total [as Fe]MO AVG <= 1 mg/L all year
002Iron, total [as Fe]DAILY MX <= 2 mg/L all year
002Iron, total [as Fe]DAILY MX <= 2 mg/L all year
002Zinc, total [as Zn]MO AVG <= .5 mg/L all year
002Zinc, total [as Zn]MO AVG <= .5 mg/L all year
002Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
002Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
003pHDAILY MN >= 6 SU all year
003pHDAILY MN >= 6 SU all year
003pHDAILY MX <= 9 SU all year
003pHDAILY MX <= 9 SU all year
003Solids, total suspendedMO AVG <= 20 mg/L all year
003Solids, total suspendedMO AVG <= 20 mg/L all year
003Solids, total suspendedDAILY MX <= 30 mg/L all year
003Solids, total suspendedDAILY MX <= 30 mg/L all year
003Iron, total [as Fe]MO AVG <= 1 mg/L all year
003Iron, total [as Fe]MO AVG <= 1 mg/L all year
003Iron, total [as Fe]DAILY MX <= 2 mg/L all year
003Iron, total [as Fe]DAILY MX <= 2 mg/L all year
003Zinc, total [as Zn]MO AVG <= .5 mg/L all year
003Zinc, total [as Zn]MO AVG <= .5 mg/L all year
003Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
003Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
004pHDAILY MN >= 6 SU all year
004pHDAILY MN >= 6 SU all year
004pHDAILY MX <= 9 SU all year
004pHDAILY MX <= 9 SU all year
004Solids, total suspendedMO AVG <= 20 mg/L all year
004Solids, total suspendedMO AVG <= 20 mg/L all year
004Solids, total suspendedDAILY MX <= 30 mg/L all year
004Solids, total suspendedDAILY MX <= 30 mg/L all year
004Iron, total [as Fe]MO AVG <= 1 mg/L all year
004Iron, total [as Fe]MO AVG <= 1 mg/L all year
004Iron, total [as Fe]DAILY MX <= 2 mg/L all year
004Iron, total [as Fe]DAILY MX <= 2 mg/L all year
004Zinc, total [as Zn]MO AVG <= .5 mg/L all year
004Zinc, total [as Zn]MO AVG <= .5 mg/L all year
004Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
004Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
005pHDAILY MN >= 6 SU all year
005pHDAILY MN >= 6 SU all year
005pHDAILY MX <= 9 SU all year
005pHDAILY MX <= 9 SU all year
005Solids, total suspendedMO AVG <= 20 ug/L all year
005Solids, total suspendedMO AVG <= 20 ug/L all year
005Solids, total suspendedDAILY MX <= 30 ug/L all year
005Solids, total suspendedDAILY MX <= 30 ug/L all year
005Iron, total [as Fe]MO AVG <= 1 mg/L all year
005Iron, total [as Fe]MO AVG <= 1 mg/L all year
005Iron, total [as Fe]DAILY MX <= 2 mg/L all year
005Iron, total [as Fe]DAILY MX <= 2 mg/L all year
005Zinc, total [as Zn]MO AVG <= .5 mg/L all year
005Zinc, total [as Zn]MO AVG <= .5 mg/L all year
005Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
005Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005LC50 Static 48Hr Acute Ceriodaphnia dubiaMINIMUM >= 100 % all year
005LC50 Static 48Hr Acute Pimephales promelasMINIMUM >= 100 % all year
005IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM >= 100 % all year
005IC25 Static Renewal 7 Day Chronic ChrpimephalesMINIMUM >= 100 % all year
SW1pHMINIMUM >= 6 SU (alert) all year
SW1pHMAXIMUM <= 9 SU (alert) all year
SW1Solids, total suspendedMAXIMUM <= 150 mg/L (alert) all year
SW1Oil & GreaseMAXIMUM <= 15 mg/L (alert) all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states