Southern Nuclear Operating Company

NPDES permit AL0024619 · Major NON-POTW · effective, expires 2029-03-31 · 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

1values over a limit
0required values missing, on 0 form(s)
0of 127 forms filed late

Last period with anything received: 2026-06-30. Most often over: E. coli (1).

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 (223)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO AVG <= 81.7 deg F Jan, Feb, Mar, Dec
001Temperature, water deg. fahrenheitMO AVG <= 81.7 deg F Jan, Feb, Mar, Dec
001Temperature, water deg. fahrenheitMO AVG <= 100 deg F Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001Temperature, water deg. fahrenheitMO AVG <= 100 deg F Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001Temperature, water deg. fahrenheitDAILY MX report only Jan, Feb, Mar, Dec
001Temperature, water deg. fahrenheitDAILY MX report only Jan, Feb, Mar, Dec
001Temperature, water deg. fahrenheitDAILY MX <= 111 deg F Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001Temperature, water deg. fahrenheitDAILY MX <= 111 deg F Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
001pHDAILY MN >= 6 SU all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001pHDAILY MX <= 9 SU all year
001Priority PollutantsDAILY MX <= 0 ug/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
001Chlorine, total residualMO AVG <= .2 mg/L all year
001Chlorine, total residualMO AVG <= .2 mg/L all year
001Chlorine, total residualDAILY MX <= .2 mg/L all year
001Chlorine, total residualDAILY MX <= .2 mg/L all year
001Chlorine, free availableMO AVG <= .2 mg/L all year
001Chlorine, free availableMO AVG <= .2 mg/L all year
001Chlorine, free availableDAILY MX <= .5 mg/L all year
001Chlorine, free availableDAILY MX <= .5 mg/L all year
001Annual Certification StatementDAILY MX <= 0 Y=0;N=1 all year
001Toxicity [chronic], Ceriodaphnia dubiaSINGSAMP <= 0 pass=0;fail=1 all year
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]SINGSAMP <= 0 pass=0;fail=1 all year
01AChlorine, total residual [dsg. time]DAILY MX <= 120 min/d all year
01AChlorine, total residual [dsg. time]DAILY MX <= 120 min/d all year
01AChromium, total [as Cr]MO AVG <= .2 mg/L all year
01AChromium, total [as Cr]MO AVG <= .2 mg/L all year
01AChromium, total [as Cr]DAILY MX <= .2 mg/L all year
01AChromium, total [as Cr]DAILY MX <= .2 mg/L all year
01AZinc, total [as Zn]MO AVG <= 1 mg/L all year
01AZinc, total [as Zn]MO AVG <= 1 mg/L all year
01AZinc, total [as Zn]DAILY MX <= 1 mg/L all year
01AZinc, total [as Zn]DAILY MX <= 1 mg/L all year
01AFlow, in conduit or thru treatment plantMO AVG report only all year
01AFlow, in conduit or thru treatment plantMO AVG report only all year
01AFlow, in conduit or thru treatment plantDAILY MX report only all year
01AFlow, in conduit or thru treatment plantDAILY MX report only all year
01BChlorine, total residual [dsg. time]DAILY MX <= 120 min/d all year
01BChlorine, total residual [dsg. time]DAILY MX <= 120 min/d all year
01BChromium, total [as Cr]MO AVG <= .2 mg/L all year
01BChromium, total [as Cr]MO AVG <= .2 mg/L all year
01BChromium, total [as Cr]DAILY MX <= .2 mg/L all year
01BChromium, total [as Cr]DAILY MX <= .2 mg/L all year
01BZinc, total [as Zn]MO AVG <= 1 mg/L all year
01BZinc, total [as Zn]MO AVG <= 1 mg/L all year
01BZinc, total [as Zn]DAILY MX <= 1 mg/L all year
01BZinc, total [as Zn]DAILY MX <= 1 mg/L all year
01BFlow, in conduit or thru treatment plantMO AVG report only all year
01BFlow, in conduit or thru treatment plantMO AVG report only all year
01BFlow, in conduit or thru treatment plantDAILY MX report only all year
01BFlow, in conduit or thru treatment plantDAILY MX report only all year
01CpHDAILY MN >= 6 SU all year
01CpHDAILY MN >= 6 SU all year
01CpHDAILY MX <= 9 SU all year
01CpHDAILY MX <= 9 SU all year
01CSolids, total suspendedMO AVG <= 30 mg/L all year
01CSolids, total suspendedDAILY MX <= 100 mg/L all year
01COil & GreaseMO AVG <= 15 mg/L all year
01COil & GreaseDAILY MX <= 20 mg/L all year
01CChromium, total [as Cr]MO AVG <= .5 mg/L all year
01CChromium, total [as Cr]MO AVG <= .5 mg/L all year
01CChromium, total [as Cr]DAILY MX <= .5 mg/L all year
01CChromium, total [as Cr]DAILY MX <= .5 mg/L all year
01CFlow, in conduit or thru treatment plantMO AVG report only all year
01CFlow, in conduit or thru treatment plantMO AVG report only all year
01CFlow, in conduit or thru treatment plantDAILY MX report only all year
01CFlow, in conduit or thru treatment plantDAILY MX report only all year
01DSolids, total suspendedMO AVG <= 30 mg/L all year
01DSolids, total suspendedMO AVG <= 30 mg/L all year
01DSolids, total suspendedDAILY MX <= 100 mg/L all year
01DSolids, total suspendedDAILY MX <= 100 mg/L all year
01DOil & GreaseMO AVG <= 15 mg/L all year
01DOil & GreaseMO AVG <= 15 mg/L all year
01DOil & GreaseDAILY MX <= 20 mg/L all year
01DOil & GreaseDAILY MX <= 20 mg/L all year
01DFlow, in conduit or thru treatment plantMO AVG report only all year
01DFlow, in conduit or thru treatment plantMO AVG report only all year
01DFlow, in conduit or thru treatment plantDAILY MX report only all year
01DFlow, in conduit or thru treatment plantDAILY MX report only all year
01ESolids, total suspendedMO AVG <= 30 mg/L all year
01ESolids, total suspendedMO AVG <= 30 mg/L all year
01ESolids, total suspendedDAILY MX <= 100 mg/L all year
01ESolids, total suspendedDAILY MX <= 100 mg/L all year
01EOil & GreaseMO AVG <= 15 mg/L all year
01EOil & GreaseMO AVG <= 15 mg/L all year
01EOil & GreaseDAILY MX <= 20 mg/L all year
01EOil & GreaseDAILY MX <= 20 mg/L all year
01EFlow, in conduit or thru treatment plantMO AVG report only all year
01EFlow, in conduit or thru treatment plantMO AVG report only all year
01EFlow, in conduit or thru treatment plantDAILY MX report only all year
01EFlow, in conduit or thru treatment plantDAILY MX report only all year
01FSolids, total suspendedMO AVG <= 30 mg/L all year
01FSolids, total suspendedDAILY MX <= 100 mg/L all year
01FOil & GreaseMO AVG <= 15 mg/L all year
01FOil & GreaseDAILY MX <= 20 mg/L all year
01FBoron, total [as B]DAILY MX report only all year
01FFlow, in conduit or thru treatment plantDAILY MX report only all year
01GSolids, total suspendedMO AVG <= 30 mg/L all year
01GSolids, total suspendedDAILY MX <= 100 mg/L all year
01GOil & GreaseMO AVG <= 15 mg/L all year
01GOil & GreaseDAILY MX <= 20 mg/L all year
01GBoron, total [as B]DAILY MX report only all year
01GFlow, in conduit or thru treatment plantDAILY MX report only all year
01HSolids, total suspendedMO AVG <= 30 mg/L all year
01HSolids, total suspendedDAILY MX <= 100 mg/L all year
01HOil & GreaseMO AVG <= 15 mg/L all year
01HOil & GreaseDAILY MX <= 20 mg/L all year
01HFlow, in conduit or thru treatment plantDAILY MX report only all year
01ISolids, total suspendedMO AVG <= 30 mg/L all year
01ISolids, total suspendedDAILY MX <= 100 mg/L all year
01IOil & GreaseMO AVG <= 15 mg/L all year
01IOil & GreaseDAILY MX <= 20 mg/L all year
01IFlow, in conduit or thru treatment plantDAILY MX report only all year
024pHDAILY MN report only all year
024pHDAILY MX report only all year
024Solids, total suspendedMO AVG report only all year
024Solids, total suspendedDAILY MX report only all year
024Oil & GreaseDAILY MX <= 15 mg/L all year
024Flow, in conduit or thru treatment plantMO AVG report only all year
024Flow, in conduit or thru treatment plantDAILY MX report only all year
024Chemical Oxygen Demand [COD]MO AVG report only all year
024Chemical Oxygen Demand [COD]DAILY MX report only all year
24ApHDAILY MN >= 6 SU all year
24ApHDAILY MN >= 6 SU all year
24ApHDAILY MX <= 9 SU all year
24ApHDAILY MX <= 9 SU all year
24ASolids, total suspendedMO AVG <= 30 mg/L all year
24ASolids, total suspendedDAILY MX <= 100 mg/L all year
24AOil & GreaseMO AVG <= 15 mg/L all year
24AOil & GreaseDAILY MX <= 20 mg/L all year
24AChromium, total [as Cr]MO AVG <= .5 mg/L all year
24AChromium, total [as Cr]MO AVG <= .5 mg/L all year
24AChromium, total [as Cr]DAILY MX <= .5 mg/L all year
24AChromium, total [as Cr]DAILY MX <= .5 mg/L all year
24AFlow, in conduit or thru treatment plantMO AVG report only all year
24AFlow, in conduit or thru treatment plantMO AVG report only all year
24AFlow, in conduit or thru treatment plantDAILY MX report only all year
24AFlow, in conduit or thru treatment plantDAILY MX report only all year
24BpHDAILY MN >= 6 SU all year
24BpHDAILY MN >= 6 SU all year
24BpHDAILY MX <= 9 SU all year
24BpHDAILY MX <= 9 SU all year
24BSolids, total suspendedMO AVG <= 30 mg/L all year
24BSolids, total suspendedMO AVG <= 30 mg/L all year
24BSolids, total suspendedDAILY MX <= 100 mg/L all year
24BSolids, total suspendedDAILY MX <= 100 mg/L all year
24BOil & GreaseMO AVG <= 15 mg/L all year
24BOil & GreaseMO AVG <= 15 mg/L all year
24BOil & GreaseDAILY MX <= 20 mg/L all year
24BOil & GreaseDAILY MX <= 20 mg/L all year
24BFlow, in conduit or thru treatment plantMO AVG report only all year
24BFlow, in conduit or thru treatment plantMO AVG report only all year
24BFlow, in conduit or thru treatment plantDAILY MX report only all year
24BFlow, in conduit or thru treatment plantDAILY MX report only all year
25AChlorine, total residual [dsg. time]DAILY MX <= 120 min/d all year
25AChlorine, total residual [dsg. time]DAILY MX <= 120 min/d all year
25AChromium, total [as Cr]MO AVG <= .2 mg/L all year
25AChromium, total [as Cr]MO AVG <= .2 mg/L all year
25AChromium, total [as Cr]DAILY MX <= .2 mg/L all year
25AChromium, total [as Cr]DAILY MX <= .2 mg/L all year
25AZinc, total [as Zn]MO AVG <= 1 mg/L all year
25AZinc, total [as Zn]MO AVG <= 1 mg/L all year
25AZinc, total [as Zn]DAILY MX <= 1 mg/L all year
25AZinc, total [as Zn]DAILY MX <= 1 mg/L all year
25AFlow, in conduit or thru treatment plantMO AVG report only all year
25AFlow, in conduit or thru treatment plantMO AVG report only all year
25AFlow, in conduit or thru treatment plantDAILY MX report only all year
25AFlow, in conduit or thru treatment plantDAILY MX report only all year
25AChlorine, total residualMO AVG report only all year
25AChlorine, total residualMO AVG report only all year
25AChlorine, total residualDAILY MX report only all year
25AChlorine, total residualDAILY MX report only all year
25AChlorine, free availableMO AVG <= .2 mg/L all year
25AChlorine, free availableMO AVG <= .2 mg/L all year
25AChlorine, free availableDAILY MX <= .5 mg/L all year
25AChlorine, free availableDAILY MX <= .5 mg/L all year
25BBOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
25BBOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
25BBOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
25BBOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
25BpHDAILY MN >= 6 SU all year
25BpHDAILY MN >= 6 SU all year
25BpHDAILY MX <= 9 SU all year
25BpHDAILY MX <= 9 SU all year
25BSolids, total suspendedMO AVG <= 30 mg/L all year
25BSolids, total suspendedMO AVG <= 30 mg/L all year
25BSolids, total suspendedDAILY MX <= 45 mg/L all year
25BSolids, total suspendedDAILY MX <= 45 mg/L all year
25BFlow, in conduit or thru treatment plantMO AVG report only all year
25BFlow, in conduit or thru treatment plantMO AVG report only all year
25BFlow, in conduit or thru treatment plantDAILY MX report only all year
25BFlow, in conduit or thru treatment plantDAILY MX report only all year
25BE. coliMO AVG <= 126 #/100mL all year
25BE. coliMO AVG <= 126 #/100mL all year
25BE. coliDAILY MX <= 235 #/100mL all year
25BE. coliDAILY MX <= 235 #/100mL all year
27AChlorine, total residual [dsg. time]DAILY MX <= 120 min/d all year
27AChlorine, total residual [dsg. time]DAILY MX <= 120 min/d all year
27AChromium, total [as Cr]MO AVG <= .2 mg/L all year
27AChromium, total [as Cr]MO AVG <= .2 mg/L all year
27AChromium, total [as Cr]DAILY MX <= .2 mg/L all year
27AChromium, total [as Cr]DAILY MX <= .2 mg/L all year
27AZinc, total [as Zn]MO AVG <= 1 mg/L all year
27AZinc, total [as Zn]MO AVG <= 1 mg/L all year
27AZinc, total [as Zn]DAILY MX <= 1 mg/L all year
27AZinc, total [as Zn]DAILY MX <= 1 mg/L all year
27AFlow, in conduit or thru treatment plantMO AVG report only all year
27AFlow, in conduit or thru treatment plantMO AVG report only all year
27AFlow, in conduit or thru treatment plantDAILY MX report only all year
27AFlow, in conduit or thru treatment plantDAILY MX report only all year
27AChlorine, total residualMO AVG report only all year
27AChlorine, total residualMO AVG report only all year
27AChlorine, total residualDAILY MX report only all year
27AChlorine, total residualDAILY MX report only all year
27AChlorine, free availableMO AVG <= .2 mg/L all year
27AChlorine, free availableMO AVG <= .2 mg/L all year
27AChlorine, free availableDAILY MX <= .5 mg/L all year
27AChlorine, free availableDAILY MX <= .5 mg/L 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