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City of Thomasville

Sewage treatment plant, major discharger, Thomasville, Georgia. NPDES permit GA0024082, in force until Nov 30, 2029. 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 (41 values), outfall 002 form B3 monthly (6 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 19 reports late

Limits in force (64)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]minimum≥ 5 mg/LJan, Feb, Mar, Apr, Dec001
Oxygen, dissolved [DO]minimum≥ 6 mg/LMay–Nov001
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≤ 542 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 678 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≤ 20 mg/Lall year001
Solids, total suspendedweekly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly average≤ 1084 lb/dall year001
Solids, total suspendedweekly average≤ 1355 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, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LNov001
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LJun–Sep001
Nitrogen, ammonia total [as N]monthly average≤ 3 mg/LMay, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/LApr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/LJan–Mar001
Nitrogen, ammonia total [as N]weekly average≤ 6 mg/LNov001
Nitrogen, ammonia total [as N]weekly average≤ 3 mg/LJun–Sep001
Nitrogen, ammonia total [as N]weekly average≤ 4.5 mg/LMay, Oct001
Nitrogen, ammonia total [as N]weekly average≤ 7.5 mg/LApr, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 15 mg/LJan–Mar001
Nitrogen, ammonia total [as N]monthly average≤ 217 lb/dNov001
Nitrogen, ammonia total [as N]monthly average≤ 108 lb/dJun–Sep001
Nitrogen, ammonia total [as N]monthly average≤ 163 lb/dMay, Oct001
Nitrogen, ammonia total [as N]monthly average≤ 271 lb/dApr, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 542 lb/dJan–Mar001
Nitrogen, ammonia total [as N]weekly average≤ 271 lb/dNov001
Nitrogen, ammonia total [as N]weekly average≤ 136 lb/dJun–Sep001
Nitrogen, ammonia total [as N]weekly average≤ 203 lb/dMay, Oct001
Nitrogen, ammonia total [as N]weekly average≤ 339 lb/dApr, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 678 lb/dJan–Mar001
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
Phosphate, ortho [as P]monthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly average≤ 6.5 MGDall year001
Flow, in conduit or thru treatment plantweekly average≤ 8.13 MGDall year001
Chlorine, total residualmaximum≤ .01 mg/Lall 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
Temperature, water deg. fahrenheitmonthly minimumreport only (deg F)May–Oct002
Temperature, water deg. fahrenheitmonthly maximumreport only (deg F)May–Oct002
Temperature, water deg. fahrenheitmonthly minimumreport only (deg F)May–Oct002
Temperature, water deg. fahrenheitmonthly maximumreport only (deg F)May–Oct002
Oxygen, dissolved [DO]minimumreport only (mg/L)May–Oct002
Oxygen, dissolved [DO]minimumreport only (mg/L)May–Oct002

New limits from Dec 1, 2028

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Nitrogen, total [as N], monthly average8 mg/Lnew17 mg/L (11 values)2.12×
Phosphorus, total [as P], monthly average0.3 mg/Lnew2.8 mg/L (12 values)9.33×
Nitrogen, ammonia total [as N], monthly average43 lb/d (May, Dec)tighter——
Nitrogen, ammonia total [as N], monthly average0.8 mg/L (May, Dec)tighter——
Nitrogen, ammonia total [as N], monthly average54 lb/d (Jan–Apr)tighter6.25 lb/d (4 values)0.116×
Nitrogen, ammonia total [as N], monthly average1 mg/L (Jan–Apr)tighter0.24 mg/L (4 values)0.24×
Nitrogen, ammonia total [as N], monthly average0.5 mg/L (Jun–Nov)tighter0.065 mg/L (6 values)0.13×
Nitrogen, ammonia total [as N], monthly average27 lb/d (Jun–Nov)tighter1.75 lb/d (6 values)0.0648×
Nitrogen, ammonia total [as N], weekly average1.2 mg/L (May, Dec)tighter——
Nitrogen, ammonia total [as N], weekly average54 lb/d (May, Dec)tighter——
Nitrogen, ammonia total [as N], weekly average68 lb/d (Jan–Apr)tighter8.8 lb/d (4 values)0.129×
Nitrogen, ammonia total [as N], weekly average1.5 mg/L (Jan–Apr)tighter0.375 mg/L (4 values)0.25×
Nitrogen, ammonia total [as N], weekly average34 lb/d (Jun–Nov)tighter3.25 lb/d (6 values)0.0956×
Nitrogen, ammonia total [as N], weekly average0.8 mg/L (Jun–Nov)tighter0.125 mg/L (6 values)0.156×
Nitrogen, total [as N], monthly average271 lb/dnew——
Nitrogen, total [as N], weekly average339 lb/dnew——
Nitrogen, total [as N], weekly average12 mg/Lnew——
Phosphorus, total [as P], monthly average5.4 lb/dnew——
Phosphorus, total [as P], weekly average6.8 lb/dnew——
Phosphorus, total [as P], weekly average0.45 mg/Lnew——

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/GA0024082 · MCP: https://passage-data.com/mcp