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City of Griffin

Sewage treatment plant, major discharger, Griffin, Georgia. NPDES permit GA0030791 expired Oct 31, 2024; its limits still apply. Last 12 months: no values over a limit, 1 of 48 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 3 monthly (1 value), outfall 003 form 4 monthly (2 values), outfall 003 form 5 monthly (1 value)
Last report on file
September 2026
Oct 2024 – Sep 2025
4 values over a limit, 1 required value missing, 1 of 48 reports late

Limits in force (53)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 15 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 75.8 kg/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 94.8 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≤ 8.5 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 227.5 kg/dall year001
Solids, total suspendedweekly average≤ 284.3 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≤ 1 mg/LJun–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LMar–May001
Nitrogen, ammonia total [as N]monthly average≤ 4.8 mg/LJan, Feb, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 1.5 mg/LJun–Nov001
Nitrogen, ammonia total [as N]weekly average≤ 4.5 mg/LMar–May001
Nitrogen, ammonia total [as N]weekly average≤ 7.2 mg/LJan, Feb, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 7.6 kg/dJun–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 22.7 kg/dMar–May001
Nitrogen, ammonia total [as N]monthly average≤ 36.4 kg/dJan, Feb, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 9.5 kg/dJun–Nov001
Nitrogen, ammonia total [as N]weekly average≤ 28.4 kg/dMar–May001
Nitrogen, ammonia total [as N]weekly average≤ 45.5 kg/dJan, Feb, Dec001
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 averagereport only (mg/L)all year001
Copper, total recoverablemonthly average≤ 8.6 ug/Lall year001
Copper, total recoverableweekly average≤ 11.6 ug/Lall year001
Copper, total recoverablemonthly average≤ .065 kg/dall year001
Copper, total recoverableweekly average≤ .088 kg/dall year001
Phosphate, ortho [as P]monthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly average≤ 2 MGDall year001
Flow, in conduit or thru treatment plantweekly average≤ 2.5 MGDall year001
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year001
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year001
Solids, sludge, total, dry weightmonthly totalreport only (lb)all year001
BOD, 5-day, percent removalminimum≥ 85 %all year001
Solids, suspended percent removalminimum≥ 85 %all year001
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaminimum≥ 98 %all year001
Noel Statre 7Day Chronic Pimephalesminimum≥ 98 %all year001
Oxygen, dissolved [DO]minimumreport only (mg/L)all year002
Oxygen, dissolved [DO]minimumreport only (mg/L)all year003
Oxygen, dissolved [DO]minimumreport only (mg/L)all year003
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year003

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/GA0030791 · MCP: https://passage-data.com/mcp