Southern Nuclear Operating Company

NPDES permit GA0004120 · Minor NON-POTW · effective, expires 2028-03-31 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 187 forms filed late

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

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among GA permits in EPA's filings — check your permit).

Limits in force (188)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX report only all year
001Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Nitrogen, total [as N]DAILY AV report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, organic total [as N]DAILY AV report only all year
001Nitrogen, organic total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY AV report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY AV report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]DAILY AV report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Phosphorus, total [as P]DAILY AV report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Temp. diff. between up/down stream deg. FDAILY MX <= 5 deg F all year
001Phosphate, ortho [as P]DAILY AV report only all year
001Phosphate, ortho [as P]DAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY AV report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001E. coliDA GEO report only all year
001E. coliDAILY MX report only all year
001NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaMINIMUM report only all year
001Noel Statre 7Day Chronic PimephalesMINIMUM report only all year
002Temperature, water deg. fahrenheitDAILY MX report only all year
002Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Nitrogen, total [as N]DAILY AV report only all year
002Nitrogen, total [as N]DAILY MX report only all year
002Nitrogen, organic total [as N]DAILY AV report only all year
002Nitrogen, organic total [as N]DAILY MX report only all year
002Nitrogen, ammonia total [as N]DAILY AV report only all year
002Nitrogen, ammonia total [as N]DAILY MX report only all year
002Nitrogen, Kjeldahl, total [as N]DAILY AV report only all year
002Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
002Nitrite + Nitrate total [as N]DAILY AV report only all year
002Nitrite + Nitrate total [as N]DAILY MX report only all year
002Phosphorus, total [as P]DAILY AV report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Temp. diff. between up/down stream deg. FDAILY MX <= 5 deg F all year
002Phosphate, ortho [as P]DAILY AV report only all year
002Phosphate, ortho [as P]DAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY AV report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaMINIMUM report only all year
002Noel Statre 7Day Chronic PimephalesMINIMUM report only all year
004Solids, total suspendedDAILY AV <= 30 mg/L all year
004Solids, total suspendedDAILY MX <= 100 mg/L all year
004Oil & GreaseDAILY AV <= 15 mg/L all year
004Oil & GreaseDAILY MX <= 20 mg/L all year
004Flow, in conduit or thru treatment plantDAILY AV report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
014pHMINIMUM >= 6 SU all year
014pHMAXIMUM <= 9 SU all year
014Phosphorus, total [as P]DAILY AV report only all year
014Phosphorus, total [as P]DAILY MX report only all year
014Phosphate, ortho [as P]DAILY AV report only all year
014Phosphate, ortho [as P]DAILY MX report only all year
014Flow, in conduit or thru treatment plantDAILY AV report only all year
014Flow, in conduit or thru treatment plantDAILY MX report only all year
014Chemical oxygen demand [COD]DAILY AV report only all year
014Chemical oxygen demand [COD]DAILY MX report only all year
015pHMINIMUM >= 6 SU all year
015pHMAXIMUM <= 9 SU all year
015Phosphorus, total [as P]DAILY AV report only all year
015Phosphorus, total [as P]DAILY MX report only all year
015Phosphate, ortho [as P]DAILY AV report only all year
015Phosphate, ortho [as P]DAILY MX report only all year
015Flow, in conduit or thru treatment plantDAILY AV report only all year
015Flow, in conduit or thru treatment plantDAILY MX report only all year
015Chemical oxygen demand [COD]DAILY AV report only all year
015Chemical oxygen demand [COD]DAILY MX report only all year
018pHMINIMUM >= 6 SU all year
018pHMAXIMUM <= 9 SU all year
018Phosphorus, total [as P]DAILY AV report only all year
018Phosphorus, total [as P]DAILY MX report only all year
018Phosphate, ortho [as P]DAILY AV report only all year
018Phosphate, ortho [as P]DAILY MX report only all year
018Flow, in conduit or thru treatment plantDAILY AV report only all year
018Flow, in conduit or thru treatment plantDAILY MX report only all year
018Chemical oxygen demand [COD]DAILY AV report only all year
018Chemical oxygen demand [COD]DAILY MX report only all year
01AChlorine, total residual [dsg. time]DAILY MX <= 120 min/d all year
01AChromium, total [as Cr]DAILY AV <= .2 mg/L all year
01AChromium, total [as Cr]DAILY MX <= .2 mg/L all year
01AZinc, total [as Zn]DAILY AV <= 1 mg/L all year
01AZinc, total [as Zn]DAILY MX <= 1 mg/L all year
01AFlow, in conduit or thru treatment plantDAILY AV report only all year
01AFlow, in conduit or thru treatment plantDAILY MX report only all year
01AChlorine, total residualDAILY AV report only all year
01AChlorine, total residualDAILY MX report only all year
01AChlorine, free availableDAILY AV <= .2 mg/L all year
01AChlorine, free availableDAILY MX <= .5 mg/L all year
01BChlorine, total residual [dsg. time]DAILY MX <= 120 min/d all year
01BChromium, total [as Cr]DAILY AV <= .2 mg/L all year
01BChromium, total [as Cr]DAILY MX <= .2 mg/L all year
01BZinc, total [as Zn]DAILY AV <= 1 mg/L all year
01BZinc, total [as Zn]DAILY MX <= 1 mg/L all year
01BFlow, in conduit or thru treatment plantDAILY AV report only all year
01BFlow, in conduit or thru treatment plantDAILY MX report only all year
01BChlorine, total residualDAILY AV report only all year
01BChlorine, total residualDAILY MX report only all year
01BChlorine, free availableDAILY AV <= .2 mg/L all year
01BChlorine, free availableDAILY MX <= .5 mg/L all year
01ESolids, total suspendedDAILY AV <= 30 mg/L all year
01ESolids, total suspendedDAILY MX <= 100 mg/L all year
01EOil & GreaseDAILY AV <= 15 mg/L all year
01EOil & GreaseDAILY MX <= 20 mg/L all year
01EFlow, in conduit or thru treatment plantDAILY AV report only all year
01EFlow, in conduit or thru treatment plantDAILY MX report only all year
01GSolids, total suspendedDAILY AV <= 30 mg/L all year
01GSolids, total suspendedDAILY MX <= 100 mg/L all year
01GOil & GreaseDAILY AV <= 15 mg/L all year
01GOil & GreaseDAILY MX <= 20 mg/L all year
01GFlow, in conduit or thru treatment plantDAILY AV report only all year
01GFlow, in conduit or thru treatment plantDAILY MX report only all year
01HSolids, total suspendedDAILY AV <= 30 mg/L all year
01HSolids, total suspendedDAILY MX <= 100 mg/L all year
01HOil & GreaseDAILY AV <= 15 mg/L all year
01HOil & GreaseDAILY MX <= 20 mg/L all year
01HFlow, in conduit or thru treatment plantDAILY AV report only all year
01HFlow, in conduit or thru treatment plantDAILY MX report only all year
01ISolids, total suspendedDAILY AV <= 30 mg/L all year
01ISolids, total suspendedDAILY MX <= 100 mg/L all year
01IOil & GreaseDAILY AV <= 15 mg/L all year
01IOil & GreaseDAILY MX <= 20 mg/L all year
01IFlow, in conduit or thru treatment plantDAILY AV report only all year
01IFlow, in conduit or thru treatment plantDAILY MX report only all year
01JChlorine, total residual [dsg. time]DAILY MX <= 120 min/d all year
01JSolids, total suspendedDAILY AV <= 30 mg/L all year
01JSolids, total suspendedDAILY MX <= 100 mg/L all year
01JOil & GreaseDAILY AV <= 15 mg/L all year
01JOil & GreaseDAILY MX <= 20 mg/L all year
01JChromium, total [as Cr]DAILY AV <= .2 mg/L all year
01JChromium, total [as Cr]DAILY MX <= .2 mg/L all year
01JZinc, total [as Zn]DAILY AV <= 1 mg/L all year
01JZinc, total [as Zn]DAILY MX <= 1 mg/L all year
01JFlow, in conduit or thru treatment plantDAILY AV report only all year
01JFlow, in conduit or thru treatment plantDAILY MX report only all year
01JChlorine, total residualDAILY AV report only all year
01JChlorine, total residualDAILY MX report only all year
01JChlorine, free availableDAILY AV <= .2 mg/L all year
01JChlorine, free availableDAILY MX <= .5 mg/L all year
02AChlorine, total residual [dsg. time]DAILY MX <= 120 min/d all year
02AChromium, total [as Cr]DAILY AV <= .2 mg/L all year
02AChromium, total [as Cr]DAILY MX <= .2 mg/L all year
02AZinc, total [as Zn]DAILY AV <= 1 mg/L all year
02AZinc, total [as Zn]DAILY MX <= 1 mg/L all year
02AFlow, in conduit or thru treatment plantDAILY AV report only all year
02AFlow, in conduit or thru treatment plantDAILY MX report only all year
02AChlorine, total residualDAILY AV report only all year
02AChlorine, total residualDAILY MX report only all year
02AChlorine, free availableDAILY AV <= .2 mg/L all year
02AChlorine, free availableDAILY MX <= .5 mg/L all year
02BChlorine, total residual [dsg. time]DAILY MX <= 120 min/d all year
02BSolids, total suspendedDAILY AV <= 30 mg/L all year
02BSolids, total suspendedDAILY MX <= 100 mg/L all year
02BOil & GreaseDAILY AV <= 15 mg/L all year
02BOil & GreaseDAILY MX <= 20 mg/L all year
02BChromium, total [as Cr]DAILY AV <= .2 mg/L all year
02BChromium, total [as Cr]DAILY MX <= .2 mg/L all year
02BZinc, total [as Zn]DAILY AV <= 1 mg/L all year
02BZinc, total [as Zn]DAILY MX <= 1 mg/L all year
02BFlow, in conduit or thru treatment plantDAILY AV report only all year
02BFlow, in conduit or thru treatment plantDAILY MX report only all year
02BChlorine, total residualDAILY AV report only all year
02BChlorine, total residualDAILY MX report only all year
02BChlorine, free availableDAILY AV <= .2 mg/L all year
02BChlorine, free availableDAILY MX <= .5 mg/L all year
02CChlorine, total residual [dsg. time]DAILY MX <= 120 min/d all year
02CChromium, total [as Cr]DAILY AV <= .2 mg/L all year
02CChromium, total [as Cr]DAILY MX <= .2 mg/L all year
02CZinc, total [as Zn]DAILY AV <= 1 mg/L all year
02CZinc, total [as Zn]DAILY MX <= 1 mg/L all year
02CFlow, in conduit or thru treatment plantDAILY AV report only all year
02CFlow, in conduit or thru treatment plantDAILY MX report only all year
02CChlorine, total residualDAILY AV report only all year
02CChlorine, total residualDAILY MX report only all year
02CChlorine, free availableDAILY AV <= .2 mg/L all year
02CChlorine, free availableDAILY MX <= .5 mg/L all year
02ESolids, total suspendedDAILY AV <= 30 mg/L all year
02ESolids, total suspendedDAILY MX <= 100 mg/L all year
02EOil & GreaseDAILY AV <= 15 mg/L all year
02EOil & GreaseDAILY MX <= 20 mg/L all year
02EFlow, in conduit or thru treatment plantDAILY AV report only all year
02EFlow, 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