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City of Dudley

Sewage treatment plant, Dudley, Georgia. NPDES permit GA0023957, in force until Jan 31, 2029. Last 12 months: over a limit 34 times (last September 2026), 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form B1 monthly (37 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
42 values over a limit, 0 required values missing, 1 of 12 reports late

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

All 34 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, monthly average25.8 mg/L≤ 25 mg/L3%
November 2025Nitrogen, ammonia total [as N], monthly average21 mg/L≤ 17.4 mg/L21%
November 2025Nitrogen, ammonia total [as N], weekly average34.9 mg/L≤ 26.1 mg/L34%
December 2025BOD, 5-day, 20 deg. C, monthly average35.4 mg/L≤ 25 mg/L42%
December 2025BOD, 5-day, 20 deg. C, weekly average44 mg/L≤ 37.5 mg/L17%
December 2025Nitrogen, ammonia total [as N], monthly average20.2 mg/L≤ 17.4 mg/L16%
January 2026BOD, 5-day, 20 deg. C, monthly average29 mg/L≤ 25 mg/L16%
January 2026BOD, 5-day, 20 deg. C, weekly average43 mg/L≤ 37.5 mg/L15%
January 2026BOD, 5-day, percent removal, minimum84 %≥ 85 %7%
January 2026Nitrogen, ammonia total [as N], monthly average22.5 mg/L≤ 17.4 mg/L29%
February 2026BOD, 5-day, percent removal, minimum82 %≥ 85 %20%
February 2026Flow, in conduit or thru treatment plant, weekly average.21 MGD≤ .14 MGD50%
February 2026Nitrogen, ammonia total [as N], monthly average21.9 mg/L≤ 17.4 mg/L26%
February 2026Solids, suspended percent removal, minimum82 %≥ 85 %20%
March 2026BOD, 5-day, 20 deg. C, weekly average54.7 lb/d≤ 30 lb/d82%
March 2026BOD, 5-day, percent removal, minimum31 %≥ 85 %360%
March 2026Flow, in conduit or thru treatment plant, monthly average.18 MGD≤ .115 MGD57%
March 2026Flow, in conduit or thru treatment plant, weekly average.451 MGD≤ .14 MGD222%
March 2026Nitrogen, ammonia total [as N], weekly average25.1 lb/d≤ 20.9 lb/d20%
March 2026Solids, suspended percent removal, minimum64 %≥ 85 %140%
April 2026BOD, 5-day, 20 deg. C, monthly average34.2 mg/L≤ 25 mg/L37%
April 2026BOD, 5-day, 20 deg. C, weekly average52 mg/L≤ 37.5 mg/L39%
April 2026BOD, 5-day, percent removal, minimum74 %≥ 85 %73%
April 2026E. coli, monthly geometric mean948.7 #/100mL≤ 126 #/100mL653%
April 2026E. coli, weekly geometric mean3000 #/100mL≤ 410 #/100mL632%
May 2026BOD, 5-day, 20 deg. C, monthly average30.8 mg/L≤ 25 mg/L23%
May 2026BOD, 5-day, percent removal, minimum80 %≥ 85 %33%
May 2026Solids, suspended percent removal, minimum84 %≥ 85 %7%
June 2026Flow, in conduit or thru treatment plant, weekly average.229 MGD≤ .14 MGD64%
July 2026Oxygen, dissolved [DO], minimum4.6 mg/L≥ 5 mg/L8%
August 2026Oxygen, dissolved [DO], minimum4.8 mg/L≥ 5 mg/L4%
September 2026Nitrogen, ammonia total [as N], monthly average19.6 mg/L≤ 13 mg/L51%
September 2026Nitrogen, ammonia total [as N], weekly average25.6 mg/L≤ 19.5 mg/L31%
September 2026Oxygen, dissolved [DO], minimum4.2 mg/L≥ 5 mg/L16%

Limits in force (42)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 5 mg/LJul–Sep
Oxygen, dissolved [DO]minimum≥ 2 mg/LJan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 25 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 37.5 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 24 lb/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 30 lb/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 (lb/d)all year
BOD, 5-day, 20 deg. Cweekly averagereport only (lb/d)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 90 mg/Lall year
Solids, total suspendedweekly average≤ 120 mg/Lall year
Solids, total suspendedmonthly average≤ 86.3 lb/dall year
Solids, total suspendedweekly average≤ 107.9 lb/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 (lb/d)all year
Solids, total suspendedweekly averagereport only (lb/d)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, organic total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 13 mg/LSep
Nitrogen, ammonia total [as N]monthly average≤ 17.4 mg/LJan, Feb, Mar, Apr, May, Jun, Jul, Aug, Oct, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 19.5 mg/LSep
Nitrogen, ammonia total [as N]weekly average≤ 26.1 mg/LJan, Feb, Mar, Apr, May, Jun, Jul, Aug, Oct, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 12.5 lb/dSep
Nitrogen, ammonia total [as N]monthly average≤ 16.7 lb/dJan, Feb, Mar, Apr, May, Jun, Jul, Aug, Oct, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 15.6 lb/dSep
Nitrogen, ammonia total [as N]weekly average≤ 20.9 lb/dJan, Feb, Mar, Apr, May, Jun, Jul, Aug, Oct, Nov, Dec
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
Phosphate, ortho [as P]monthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ .115 MGDall year
Flow, in conduit or thru treatment plantweekly average≤ .14 MGDall year
Chlorine, total residualdaily maximum≤ .08 mg/Lall year
E. colimonthly geometric mean≤ 126 #/100mLall year
E. coliweekly geometric mean≤ 410 #/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

How strict are these limits?

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

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