GIBSON COUNTY COAL LLC - GIBSON SOUTH MINE

NPDES permit IN0064157 · Minor NON-POTW · effective, expires 2029-01-31 · 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

2values over a limit
0required values missing, on 0 form(s)
0of 96 forms filed late

Last period with anything received: 2026-08-31. Most often over: Iron, total recoverable (2).

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 (93)

OutfallParameterStatisticLimitMonths
003pHDAILY MN >= 6 SU 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
003pHDAILY MX <= 9 SU all year
003Solids, total suspendedMO AVG <= 35 mg/L all year
003Solids, total suspendedMO AVG report only all year
003Solids, total suspendedMO AVG report only all year
003Solids, total suspendedDAILY MX <= 70 mg/L all year
003Solids, total suspendedDAILY MX report only all year
003Solids, total suspendedDAILY MX report only all year
003Solids, settleableDAILY MX <= .5 mL/L all year
003Solids, settleableDAILY MX report only all year
003Hardness, total [as CaCO3]MO AVG report only all year
003Hardness, total [as CaCO3]DAILY MX report only all year
003Chloride [as Cl]MO AVG report only all year
003Chloride [as Cl]DAILY MX report only all year
003Sulfate, total [as SO4]MO AVG report only all year
003Sulfate, total [as SO4]DAILY MX report only all year
003Iron, total recoverableMO AVG <= 2.4 mg/L all year
003Iron, total recoverableMO AVG <= 2.4 mg/L all year
003Iron, total recoverableMO AVG <= 2.4 mg/L all year
003Iron, total recoverableDAILY MX <= 4.1 mg/L all year
003Iron, total recoverableDAILY MX <= 4.1 mg/L all year
003Iron, total recoverableDAILY MX <= 4.1 mg/L all year
003DurationMO TOTAL report only all year
003DurationMO TOTAL report only 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 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
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
003Precipitation volumeMO TOTAL report only all year
003Flow, totalMO TOTAL report only all year
003Flow, totalMO TOTAL report only all year
003Flow, totalMO TOTAL report only all year
003Flow, totalMO TOTAL report only all year
005Oxygen, dissolved [DO]DLYAVMIN >= 6 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
005Oxygen, dissolved [DO]DLYAVMIN >= 5 mg/L Jan, Feb, Mar, Apr, Dec
005pHDAILY MN >= 6 SU all year
005pHDAILY MX <= 9 SU all year
005Solids, total suspendedMO AVG <= 12 mg/L all year
005Solids, total suspendedMX WK AV <= 18 mg/L all year
005Nitrogen, ammonia total [as N]MO AVG <= 1.1 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
005Nitrogen, ammonia total [as N]MO AVG <= 1.6 mg/L Jan, Feb, Mar, Apr, Dec
005Nitrogen, ammonia total [as N]MX WK AV <= 1.6 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
005Nitrogen, ammonia total [as N]MX WK AV <= 2.4 mg/L Jan, Feb, Mar, Apr, Dec
005Phosphorus, total [as P]MO AVG <= 1 mg/L all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantMX WK AV report only all year
005E. coli, colony forming units [CFU]MO GEO <= 125 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
005E. coli, colony forming units [CFU]DAILY MX <= 235 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
005BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
005BOD, carbonaceous [5 day, 20 C]MX WK AV <= 15 mg/L all year
005Flow, totalMO TOTAL report only all year
006pHDAILY MN >= 6 SU all year
006pHDAILY MX <= 9 SU all year
006Solids, total suspendedMO AVG report only all year
006Solids, total suspendedDAILY MX report only all year
006Hardness, total [as CaCO3]MO AVG report only all year
006Hardness, total [as CaCO3]DAILY MX report only all year
006Chloride [as Cl]MO AVG <= 360 mg/L all year
006Chloride [as Cl]DAILY MX <= 730 mg/L all year
006Sulfate, total [as SO4]MO AVG report only all year
006Sulfate, total [as SO4]DAILY MX report only all year
006Iron, total recoverableMO AVG <= 2.4 mg/L all year
006Iron, total recoverableDAILY MX <= 4.1 mg/L all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Flow, augmented waterMO AVG report only all year
006Flow, augmented waterDAILY MX report only all year
006Flow, totalMO TOTAL report only all year
103Chloride [as Cl]MO AVG report only all year
103Chloride [as Cl]DAILY MX report only all year
103Sulfate, total [as SO4]MO AVG report only all year
103Sulfate, total [as SO4]DAILY MX report only all year
103Flow, in conduit or thru treatment plantMO AVG report only all year
103Flow, in conduit or thru treatment plantDAILY MX report only all year
103Flow, augmented waterMO AVG report only all year
103Flow, augmented waterDAILY MX report only all year
106pHDAILY MN >= 6 SU all year
106pHDAILY MX <= 9 SU all year
106Solids, total suspendedMO AVG <= 35 mg/L all year
106Solids, total suspendedDAILY MX <= 70 mg/L all year
106Iron, total recoverableMO AVG <= 3 mg/L all year
106Iron, total recoverableDAILY MX <= 6 mg/L all year
106Flow, in conduit or thru treatment plantMO AVG report only all year
106Flow, in conduit or thru treatment plantDAILY MX 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