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Canton, City of

Sewage treatment plant, major discharger, Canton, Georgia. NPDES permit GA0025674 expired Sep 30, 2025; its limits still apply. Last 12 months: over a limit 13 times (last May 2026), 14 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form 1 monthly (41 values), outfall 002 form 1 monthly (11 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
12 values over a limit, 0 required values missing, 20 of 24 reports late

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

All 13 values over a limit
Period endingParameterReportedLimitOver by
October 2025Phosphorus, total [as P], monthly average.54 mg/L≤ .23 mg/L135%
October 2025Phosphorus, total [as P], monthly average6 kg/d≤ 3.5 kg/d71%
October 2025Phosphorus, total [as P], weekly average.58 mg/L≤ .35 mg/L66%
October 2025Phosphorus, total [as P], weekly average6.33 kg/d≤ 4.4 kg/d44%
November 2025Phosphorus, total [as P], monthly average.47 mg/L≤ .23 mg/L104%
November 2025Phosphorus, total [as P], monthly average6 kg/d≤ 3.5 kg/d71%
November 2025Phosphorus, total [as P], weekly average.47 mg/L≤ .35 mg/L34%
November 2025Phosphorus, total [as P], weekly average4.94 kg/d≤ 4.4 kg/d12%
April 2026Phosphorus, total [as P], monthly average.3 mg/L≤ .23 mg/L30%
May 2026Phosphorus, total [as P], monthly average.39 mg/L≤ .23 mg/L70%
May 2026Phosphorus, total [as P], monthly average4 kg/d≤ 3.5 kg/d14%
May 2026Phosphorus, total [as P], weekly average.4 mg/L≤ .35 mg/L14%
May 2026Phosphorus, total [as P], weekly average4.64 kg/d≤ 4.4 kg/d5%

Limits in force (52)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 14 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 21 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 212.3 kg/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 265.4 kg/dall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (kg/d)all year001
BOD, 5-day, 20 deg. Cweekly averagereport only (kg/d)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 20 mg/Lall year001
Solids, total suspendedweekly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly average≤ 303 kg/dall year001
Solids, total suspendedweekly average≤ 379 kg/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedweekly averagereport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (kg/d)all year001
Solids, total suspendedweekly averagereport only (kg/d)all year001
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 8.2 mg/Lall year001
Nitrogen, ammonia total [as N]weekly average≤ 12.3 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 124.3 kg/dall year001
Nitrogen, ammonia total [as N]weekly average≤ 155.4 kg/dall year001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly average≤ .23 mg/Lall year001
Phosphorus, total [as P]weekly average≤ .35 mg/Lall year001
Phosphorus, total [as P]monthly average≤ 3.5 kg/dall year001
Phosphorus, total [as P]weekly average≤ 4.4 kg/dall year001
Phosphate, ortho [as P]monthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly average≤ 4 MGDall year001
Flow, in conduit or thru treatment plantweekly average≤ 5 MGDall year001
Chlorine, total residualdaily maximum≤ .35 mg/Lall year001
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year001
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year001
Solids, sludge, total, dry weightmonthly totalreport only (dry ton)all year001
BOD, 5-day, percent removalminimum≥ 85 %all year001
Solids, suspended percent removalminimum≥ 85 %all year001
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaminimumreport only (%)all year001
Noel Statre 7Day Chronic Pimephalesminimumreport only (%)all year001
Turbiditydaily maximum≤ 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 generaldaily maximum≤ 100 #/100mLall year002

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

Your permit document is the final word. As JSON: /api/v1/permits/GA0025674 · MCP: https://passage-data.com/mcp