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Southern Power Company

Electric Services, Smiths, Alabama. NPDES permit AL0073555, in force until Nov 30, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form 1 quarterly (26 values), outfall 001 form Q quarterly (2 values), outfall 01A form 1 quarterly (22 values), outfall 01B form Q quarterly (6 values), outfall 01D form 1 quarterly (18 values), outfall 01A form Y yearly
Renewal application due
Jun 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 45 reports late

Limits in force (76)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximum≤ 90 deg Fall year001
Temperature, water deg. fahrenheitdaily maximum≤ 90 deg Fall year001
pHdaily minimum≥ 6 SUall year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
pHdaily maximum≤ 9 SUall year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Apr–Oct001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Apr–Oct001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Apr–Oct001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Apr–Oct001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Apr–Oct001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Apr–Oct001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)Apr–Oct001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)Apr–Oct001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Apr–Oct001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Apr–Oct001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Apr–Oct001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Apr–Oct001
Phosphorus, total [as P]monthly averagereport only (mg/L)Apr–Oct001
Phosphorus, total [as P]monthly averagereport only (mg/L)Apr–Oct001
Phosphorus, total [as P]daily maximumreport only (mg/L)Apr–Oct001
Phosphorus, total [as P]daily maximumreport only (mg/L)Apr–Oct001
Zinc, total recoverabledaily maximumreport only (mg/L)all year001
Chromium, total recoverabledaily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualdaily maximum≤ .2 mg/Lall year001
Chlorine, total residualdaily maximum≤ .2 mg/Lall year001
Chromium, total [as Cr]monthly average≤ .2 mg/Lall year01A
Chromium, total [as Cr]monthly average≤ .2 mg/Lall year01A
Chromium, total [as Cr]daily maximum≤ .2 mg/Lall year01A
Chromium, total [as Cr]daily maximum≤ .2 mg/Lall year01A
Zinc, total [as Zn]monthly average≤ 1 mg/Lall year01A
Zinc, total [as Zn]monthly average≤ 1 mg/Lall year01A
Zinc, total [as Zn]daily maximum≤ 1 mg/Lall year01A
Zinc, total [as Zn]daily maximum≤ 1 mg/Lall year01A
Priority Pollutantsmonthly average≤ 0 mg/Lall year01A
Priority Pollutantsdaily maximum≤ 0 mg/Lall year01A
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year01A
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year01A
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year01A
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year01A
Chlorine, total residualmonthly averagereport only (mg/L)all year01A
Chlorine, total residualmonthly averagereport only (mg/L)all year01A
Chlorine, total residualdaily maximumreport only (mg/L)all year01A
Chlorine, total residualdaily maximumreport only (mg/L)all year01A
Chlorine, free availablemonthly average≤ .2 mg/Lall year01A
Chlorine, free availablemonthly average≤ .2 mg/Lall year01A
Chlorine, free availabledaily maximum≤ .5 mg/Lall year01A
Chlorine, free availabledaily maximum≤ .5 mg/Lall year01A
Chlorination durationdaily maximum≤ 120 min/dall year01A
Chlorination durationdaily maximum≤ 120 min/dall year01A
Solids, total suspendedmonthly average≤ 30 mg/Lall year01B
Solids, total suspendeddaily maximum≤ 100 mg/Lall year01B
Oil & Greasemonthly average≤ 10 mg/Lall year01B
Oil & Greasedaily maximum≤ 15 mg/Lall year01B
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year01B
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year01B
Solids, total suspendedmonthly average≤ 30 mg/Lall year01D
Solids, total suspendedmonthly average≤ 30 mg/Lall year01D
Solids, total suspendeddaily maximum≤ 100 mg/Lall year01D
Solids, total suspendeddaily maximum≤ 100 mg/Lall year01D
Oil & Greasemonthly average≤ 15 mg/Lall year01D
Oil & Greasemonthly average≤ 15 mg/Lall year01D
Oil & Greasedaily maximum≤ 20 mg/Lall year01D
Oil & Greasedaily maximum≤ 20 mg/Lall year01D
Copper, total [as Cu]monthly average≤ 1 mg/Lall year01D
Copper, total [as Cu]monthly average≤ 1 mg/Lall year01D
Copper, total [as Cu]daily maximum≤ 1 mg/Lall year01D
Copper, total [as Cu]daily maximum≤ 1 mg/Lall year01D
Iron, total [as Fe]monthly average≤ 1 mg/Lall year01D
Iron, total [as Fe]monthly average≤ 1 mg/Lall year01D
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year01D
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year01D
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year01D
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year01D

How strict are these limits?

Cited limits by parameter: Alabama's rules and the federal ones.

Same industry: the 23 Electric Services permits in Alabama.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/AL0073555 · MCP: https://passage-data.com/mcp