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Forsyth County Board of Commissioners

Sewage treatment plant, Alpharetta, Georgia. NPDES permit GA0050244 expired Apr 30, 2026; its limits still apply. Last 12 months: over a limit 2 times (last August 2026), 5 of 42 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form 1 monthly (1 value), outfall 002 form 1 monthly (12 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 42 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
November 2025Coliform, fecal general, maximum109 #/100mL≤ 100 #/100mL9%
August 2026Coliform, fecal general, maximum272 #/100mL≤ 100 #/100mL172%

Limits in force (62)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimum> 6 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cmonthly average≤ 5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cweekly average≤ 7.5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cmonthly average≤ 9.5 kg/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cweekly average≤ 11.8 kg/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cmonthly averagereport only (kg/d)Jan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, 20 deg. Cweekly averagereport only (kg/d)Jan, Feb, Mar, Apr, Nov, Dec001
pHminimum≥ 6 SUJan, Feb, Mar, Apr, Nov, Dec001
pHmaximum≤ 8.5 SUJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedmonthly average≤ 5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedweekly average≤ 7.5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedmonthly average≤ 9.5 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedweekly average≤ 11.8 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedmonthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedweekly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedmonthly averagereport only (kg/d)Jan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedweekly averagereport only (kg/d)Jan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, organic total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 1.5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.9 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 2.4 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec001
Phosphorus, total [as P]monthly average≤ .16 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Phosphorus, total [as P]weekly average≤ .24 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Phosphorus, total [as P]monthly average≤ .3 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Phosphorus, total [as P]weekly average≤ .38 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Phosphate, ortho [as P]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec001
Flow, in conduit or thru treatment plantdaily maximum≤ .625 MGDJan, Feb, Mar, Apr, Nov, Dec001
Flow, in conduit or thru treatment plantdaily maximum≤ 0 MGDMay–Oct001
Chlorine, total residualdaily maximum≤ .021 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal)Jan, Feb, Mar, Apr, Nov, Dec001
Flow, in conduit or thru treatment plantcumulative total≤ 54.8 MgalJan, Feb, Mar, Apr, Nov, Dec001
Coliform, fecal generalmonthly geometric mean≤ 23 #/100mLJan, Feb, Mar, Apr, Nov, Dec001
Coliform, fecal generalweekly geometric mean≤ 46 #/100mLJan, Feb, Mar, Apr, Nov, Dec001
Solids, sludge, total, dry weightmonthly totalreport only (dry ton)Jan, Feb, Mar, Apr, Nov, Dec001
BOD, 5-day, percent removalminimum≥ 85 %Jan, Feb, Mar, Apr, Nov, Dec001
Solids, suspended percent removalminimum≥ 85 %Jan, Feb, Mar, Apr, Nov, Dec001
Turbiditymaximum≤ 3 NTUall year002
BOD, 5-day, 20 deg. Cmonthly average≤ 5 mg/Lall year002
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year002
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 5 mg/Lall year002
Solids, total suspendedmonthly averagereport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly average≤ .5 MGDall year002
Flow, in conduit or thru treatment plantweekly average≤ .625 MGDall year002
Coliform, fecal generalmonthly geometric mean≤ 23 #/100mLall year002
Coliform, fecal generalmaximum≤ 100 #/100mLall year002
Solids, sludge, total, dry weightmonthly totalreport only (dry ton)May–Oct002
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec003
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec003
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec003
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec003
Phosphorus, total [as P]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec003
Phosphorus, total [as P]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec003
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec004
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec004
Phosphorus, total [as P]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec004

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

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