Triad Mining LLC Augusta Mine

NPDES permit ING040188 · Minor NON-POTW · effective, expires 2028-01-31 · 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 25 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among IN permits in EPA's filings — check your permit).

Limits in force (34)

OutfallParameterStatisticLimitMonths
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 suspendedDAILY AV <= 35 mg/L all year
003Solids, total suspendedMO AVG <= 35 mg/L all year
003Solids, total suspendedDAILY MX <= 70 mg/L all year
003Solids, total suspendedDAILY MX <= 70 mg/L all year
003Solids, settleableDAILY AV report only all year
003Solids, settleableMO AVG report only all year
003Solids, settleableDAILY MX <= .5 mL/L all year
003Solids, settleableDAILY MX <= .5 mL/L all year
003Iron, total [as Fe]DAILY AV <= 3 mg/L all year
003Iron, total [as Fe]MO AVG <= 3 mg/L all year
003Iron, total [as Fe]DAILY MX <= 6 mg/L all year
003Iron, total [as Fe]DAILY MX <= 6 mg/L all year
003DurationMO TOTAL report only all year
003Flow, in conduit or thru treatment plantDAILY AV 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
003Precipitation volumeMO TOTAL report only all year
013pHDAILY MN >= 6 SU all year
013pHDAILY MX <= 9 SU all year
013Solids, total suspendedDAILY AV <= 35 mg/L all year
013Solids, total suspendedDAILY MX <= 70 mg/L all year
013Solids, settleableDAILY AV report only all year
013Solids, settleableDAILY MX <= .5 mL/L all year
013Iron, total [as Fe]DAILY AV <= 3 mg/L all year
013Iron, total [as Fe]DAILY MX <= 6 mg/L all year
013DurationMO TOTAL report only all year
013Flow, in conduit or thru treatment plantDAILY AV report only all year
013Flow, in conduit or thru treatment plantDAILY MX report only all year
013Precipitation volumeMO TOTAL report only 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