Southern Power Company

NPDES permit AL0074179 · Minor NON-POTW · effective, expires 2028-09-30 · 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 33 forms filed late

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

Reporting

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

Limits in force (34)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Chromium, total [as Cr]MO AVG <= .2 mg/L all year
001Chromium, total [as Cr]DAILY MX <= .2 mg/L all year
001Zinc, total [as Zn]MO AVG <= 1 mg/L all year
001Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
001Priority PollutantsDAILY MX <= 0 ug/L all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, free availableMO AVG <= .2 mg/L all year
001Chlorine, free availableDAILY MX <= .5 mg/L all year
001Annual Certification StatementDAILY MX report only all year
001Quarterly Certification StatementDAILY MX report only all year
001Quarterly Certification StatementDAILY MX report only all year
001Chlorination durationDAILY MX <= 120 min/d all year
01ASolids, total suspendedMO AVG <= 30 mg/L all year
01ASolids, total suspendedDAILY MX <= 100 mg/L all year
01AOil & GreaseMO AVG <= 10 mg/L all year
01AOil & GreaseDAILY MX <= 15 mg/L all year
01AFlow, in conduit or thru treatment plantDAILY MX report only all year
01BSolids, total suspendedMO AVG <= 30 mg/L all year
01BSolids, total suspendedDAILY MX <= 100 mg/L all year
01BOil & GreaseMO AVG <= 10 mg/L all year
01BOil & GreaseDAILY MX <= 15 mg/L all year
01BCopper, total [as Cu]MO AVG <= 1 mg/L all year
01BCopper, total [as Cu]DAILY MX <= 1 mg/L all year
01BIron, total [as Fe]MO AVG <= 1 mg/L all year
01BIron, total [as Fe]DAILY MX <= 1 mg/L all year
01BFlow, in conduit or thru treatment plantDAILY MX report only all year
01CSolids, total suspendedMO AVG <= 30 mg/L all year
01CSolids, total suspendedDAILY MX <= 100 mg/L all year
01COil & GreaseMO AVG <= 10 mg/L all year
01COil & GreaseDAILY MX <= 15 mg/L all year
01CFlow, 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