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City of Woodstock

Sewage treatment plant, major discharger, Woodstock, Georgia. NPDES permit GA0026263 expired May 31, 2026; its limits still apply. Last 12 months: over a limit 6 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form B1 monthly (40 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
29 values over a limit, 0 required values missing, 1 of 12 reports late

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

Period endingParameterReportedLimitOver by
February 2026Nitrogen, ammonia total [as N], monthly average22.8 kg/d≤ 9.5 kg/d140%
February 2026Nitrogen, ammonia total [as N], monthly average4.1 mg/L≤ 1 mg/L310%
February 2026Nitrogen, ammonia total [as N], weekly average11.13 mg/L≤ 1.5 mg/L642%
February 2026Nitrogen, ammonia total [as N], weekly average62.4 kg/d≤ 11.8 kg/d429%
August 2026Nitrogen, ammonia total [as N], weekly average1.97 mg/L≤ 1.5 mg/L31%
August 2026Nitrogen, ammonia total [as N], weekly average13.2 kg/d≤ 11.8 kg/d12%

Limits in force (40)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 5 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 7.5 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 47 kg/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 59 kg/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly averagereport only (kg/d)all year
BOD, 5-day, 20 deg. Cweekly averagereport only (kg/d)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 10 mg/Lall year
Solids, total suspendedweekly average≤ 15 mg/Lall year
Solids, total suspendedmonthly average≤ 95 kg/dall year
Solids, total suspendedweekly average≤ 118 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (kg/d)all year
Solids, total suspendedweekly averagereport only (kg/d)all year
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/Lall year
Nitrogen, ammonia total [as N]weekly average≤ 1.5 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 9.5 kg/dall year
Nitrogen, ammonia total [as N]weekly average≤ 11.8 kg/dall year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]weekly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly average≤ .95 kg/dall year
Phosphorus, total [as P]weekly average≤ 1.2 kg/dall year
Phosphate, ortho [as P]monthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ 2.5 MGDall year
Flow, in conduit or thru treatment plantweekly average≤ 3.1 MGDall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year
Solids, sludge, total, dry weightmonthly totalreport only (dry ton)all year
BOD, 5-day, percent removalminimum≥ 85 %all year
Solids, suspended percent removalminimum≥ 85 %all year
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaminimumreport only (%)all year
Noel Statre 7Day Chronic Pimephalesminimumreport only (%)all year

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/GA0026263 · MCP: https://passage-data.com/mcp