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Oconee County Board of Commissioners

Sewage treatment plant, major discharger, Watkinsville, Georgia. NPDES permit GA0050211 expired Jun 30, 2024; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 46 days after each period: outfall 001 form B1 monthly (46 values), outfall OO2 form B3 monthly (43 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 24 reports late

Limits in force (89)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 5 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 7.5 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 62.6 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 78.2 lb/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 (lb/d)all year001
BOD, 5-day, 20 deg. Cweekly averagereport only (lb/d)all year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 8.5 SUall year001
Solids, total suspendedmonthly average≤ 10 mg/Lall year001
Solids, total suspendedweekly average≤ 15 mg/Lall year001
Solids, total suspendedmonthly average≤ 125 lb/dall year001
Solids, total suspendedweekly average≤ 156 lb/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 (lb/d)all year001
Solids, total suspendedweekly averagereport only (lb/d)all year001
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/Lall year001
Nitrogen, ammonia total [as N]weekly average≤ 1.5 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 12.5 lb/dall year001
Nitrogen, ammonia total [as N]weekly average≤ 15.6 lb/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≤ .5 mg/Lall year001
Phosphorus, total [as P]weekly average≤ .75 mg/Lall year001
Phosphorus, total [as P]monthly average≤ 6.26 lb/dall year001
Phosphorus, total [as P]weekly average≤ 7.82 lb/dall year001
Zinc, total recoverablemonthly average≤ 71.1 ug/Lall year001
Zinc, total recoverableweekly average≤ 71.1 ug/Lall year001
Zinc, total recoverablemonthly average≤ .889 lb/dall year001
Zinc, total recoverableweekly average≤ .889 lb/dall year001
Phosphate, ortho [as P]monthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly average≤ 1.5 MGDall year001
Flow, in conduit or thru treatment plantweekly average≤ 1.88 MGDall year001
E. colimonthly geometric mean≤ 126 #/100mLall year001
E. coliweekly geometric mean≤ 410 #/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
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimumreport only (%)all year001
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasminimumreport only (%)all year001
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimumreport only (%)all year001
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasminimumreport only (%)all year001
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall yearOO2
BOD, 5-day, 20 deg. Cmonthly average≤ 5 mg/Lall yearOO2
BOD, 5-day, 20 deg. Cweekly average≤ 7.5 mg/Lall yearOO2
BOD, 5-day, 20 deg. Cmonthly average≤ 125 lb/dall yearOO2
BOD, 5-day, 20 deg. Cweekly average≤ 156 lb/dall yearOO2
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearOO2
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all yearOO2
BOD, 5-day, 20 deg. Cmonthly averagereport only (lb/d)all yearOO2
BOD, 5-day, 20 deg. Cweekly averagereport only (lb/d)all yearOO2
pHminimum≥ 6 SUall yearOO2
pHmaximum≤ 9 SUall yearOO2
Solids, total suspendedmonthly average≤ 10 mg/Lall yearOO2
Solids, total suspendedweekly average≤ 15 mg/Lall yearOO2
Solids, total suspendedmonthly average≤ 250 lb/dall yearOO2
Solids, total suspendedweekly average≤ 313 lb/dall yearOO2
Solids, total suspendedmonthly averagereport only (mg/L)all yearOO2
Solids, total suspendedweekly averagereport only (mg/L)all yearOO2
Solids, total suspendedmonthly averagereport only (lb/d)all yearOO2
Solids, total suspendedweekly averagereport only (lb/d)all yearOO2
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all yearOO2
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/Lall yearOO2
Nitrogen, ammonia total [as N]weekly average≤ 1.5 mg/Lall yearOO2
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dall yearOO2
Nitrogen, ammonia total [as N]weekly average≤ 31.3 lb/dall yearOO2
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all yearOO2
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all yearOO2
Phosphorus, total [as P]monthly average≤ .5 mg/Lall yearOO2
Phosphorus, total [as P]weekly average≤ .75 mg/Lall yearOO2
Phosphorus, total [as P]monthly average≤ 12.5 lb/dall yearOO2
Phosphorus, total [as P]weekly average≤ 15.6 lb/dall yearOO2
Phosphate, ortho [as P]monthly averagereport only (mg/L)all yearOO2
Flow, in conduit or thru treatment plantmonthly average≤ 3 MGDall yearOO2
Flow, in conduit or thru treatment plantweekly average≤ 3.75 MGDall yearOO2
Flow, in conduit or thru treatment plantmonthly average≤ 3 MGDall yearOO2
E. colimonthly geometric mean≤ 126 #/100mLall yearOO2
E. coliweekly geometric mean≤ 410 #/100mLall yearOO2
Solids, sludge, total, dry weightmonthly totalreport only (dry ton)all yearOO2
BOD, 5-day, percent removalminimum≥ 85 %all yearOO2
Solids, suspended percent removalminimum≥ 85 %all yearOO2
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimumreport only (%)all yearOO2
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasminimumreport only (%)all yearOO2
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimumreport only (%)all yearOO2
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasminimumreport only (%)all yearOO2

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/GA0050211 · MCP: https://passage-data.com/mcp