NIPSCO LLC, BAILLY GENERATING STATION

NPDES permit IN0000132 · Minor NON-POTW · effective, expires 2027-07-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

0values over a limit
0required values missing, on 0 form(s)
0of 33 forms filed late

Last period with anything received: 2026-07-31.

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 (32)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU 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
001Mercury, total recoverableMO AVG <= 1.3 ng/L Feb, Apr, Jun, Aug, Oct, Dec
001Mercury, total recoverableDAILY MX <= 3.2 ng/L Feb, Apr, Jun, Aug, Oct, Dec
001Mercury, total recoverableMO AVG <= .0048 lb/d Feb, Apr, Jun, Aug, Oct, Dec
001Mercury, total recoverableDAILY MX <= .0118 lb/d Feb, Apr, Jun, Aug, Oct, Dec
001Flow, totalMO TOTAL report only all year
101pHDAILY MN >= 6 SU all year
101pHDAILY MX <= 9 SU all year
101Solids, total suspendedMO AVG <= 30 mg/L all year
101Solids, total suspendedDAILY MX <= 100 mg/L all year
101Oil and grease, hexane extr methodMO AVG <= 15 mg/L all year
101Oil and grease, hexane extr methodDAILY MX <= 20 mg/L all year
101Flow, in conduit or thru treatment plantMO AVG report only all year
101Flow, in conduit or thru treatment plantDAILY MX report only all year
101Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
101Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
101Mercury, total recoverableMO AVG report only Feb, Apr, Jun, Aug, Oct, Dec
101Mercury, total recoverableDAILY MX report only Feb, Apr, Jun, Aug, Oct, Dec
501pHDAILY MN >= 6 SU all year
501pHDAILY MX <= 9 SU all year
501Zinc, total recoverableMO AVG <= 1 mg/L all year
501Zinc, total recoverableDAILY MX <= 1 mg/L all year
501Chromium, total recoverableMO AVG <= .2 mg/L all year
501Chromium, total recoverableDAILY MX <= .2 mg/L all year
501Flow, in conduit or thru treatment plantMO AVG report only all year
501Flow, in conduit or thru treatment plantDAILY MX report only all year
501Chlorine, total residualMO AVG <= .2 mg/L all year
501Chlorine, total residualDAILY MX <= .5 mg/L all year
501Chlorination durationDAILY MX <= 120 min/d 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