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Coweta County Water & Sewerage Authority

Sewage treatment plant, major discharger, Newnan, Georgia. NPDES permit GA0038822, in force until Jun 30, 2028. Last 12 months: over a limit 51 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form 1 monthly (50 values), outfall 002 form 1 monthly (11 values), outfall SUM form S1 monthly (2 values)
Renewal application due
Jan 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
33 values over a limit, 0 required values missing, 1 of 36 reports late

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

All 51 values over a limit
Period endingParameterReportedLimitOver by
October 2025Zinc, total recoverable, monthly average170 ug/L≤ 137 ug/L24%
October 2025Zinc, total recoverable, weekly average170 ug/L≤ 137 ug/L24%
November 2025Oxygen, dissolved [DO], minimum4.68 mg/L≥ 6 mg/L22%
November 2025Solids, suspended percent removal, minimum67.58 %≥ 85 %116%
November 2025Zinc, total recoverable, monthly average720 ug/L≤ 137 ug/L426%
November 2025Zinc, total recoverable, weekly average720 ug/L≤ 137 ug/L426%
December 2025Solids, total suspended, monthly average10.82 mg/L≤ 10 mg/L8%
December 2025Solids, total suspended, weekly average18.33 mg/L≤ 15 mg/L22%
December 2025Solids, total suspended, weekly average262.02 lb/d≤ 208.5 lb/d26%
January 2026BOD, 5-day, 20 deg. C, weekly average115.72 lb/d≤ 100.1 lb/d16%
January 2026BOD, 5-day, 20 deg. C, weekly average8.11 mg/L≤ 7.2 mg/L13%
January 2026Nitrogen, ammonia total [as N], weekly average1.642 mg/L≤ 1.5 mg/L9%
January 2026Nitrogen, ammonia total [as N], weekly average23.43 lb/d≤ 20.9 lb/d12%
January 2026Solids, suspended percent removal, minimum36.67 %≥ 85 %322%
January 2026Solids, total suspended, monthly average12.39 mg/L≤ 10 mg/L24%
January 2026Solids, total suspended, weekly average19.85 mg/L≤ 15 mg/L32%
January 2026Solids, total suspended, weekly average283.25 lb/d≤ 208.5 lb/d36%
February 2026Coliform, fecal general, weekly geometric mean> 1706.31 #/100mL≤ 400 #/100mL—
February 2026E. coli, weekly geometric mean> 2419.6 #/100mL≤ 410 #/100mL—
February 2026Nitrogen, ammonia total [as N], monthly average5.016 mg/L≤ 1 mg/L402%
February 2026Nitrogen, ammonia total [as N], monthly average63.96 lb/d≤ 16.7 lb/d283%
February 2026Nitrogen, ammonia total [as N], weekly average24.367 mg/L≤ 1.5 mg/L1524%
February 2026Nitrogen, ammonia total [as N], weekly average331.85 lb/d≤ 20.9 lb/d1488%
February 2026Phosphorus, total [as P], monthly average1.883 mg/L≤ 1 mg/L88%
February 2026Phosphorus, total [as P], monthly average24.01 lb/d≤ 16.7 lb/d44%
February 2026Phosphorus, total [as P], weekly average4.673 mg/L≤ 1.5 mg/L212%
February 2026Phosphorus, total [as P], weekly average63.64 lb/d≤ 20.9 lb/d204%
February 2026Solids, suspended percent removal, minimum43.12 %≥ 85 %279%
February 2026Solids, total suspended, monthly average20.04 mg/L≤ 10 mg/L100%
February 2026Solids, total suspended, monthly average255.54 lb/d≤ 166.8 lb/d53%
February 2026Solids, total suspended, weekly average51.84 mg/L≤ 15 mg/L246%
February 2026Solids, total suspended, weekly average706.02 lb/d≤ 208.5 lb/d239%
March 2026Phosphorus, total [as P], monthly average1.359 mg/L≤ 1 mg/L36%
March 2026Phosphorus, total [as P], monthly average17.91 lb/d≤ 16.7 lb/d7%
March 2026Phosphorus, total [as P], weekly average2.18 mg/L≤ 1.5 mg/L45%
March 2026Phosphorus, total [as P], weekly average30.85 lb/d≤ 20.9 lb/d48%
March 2026Zinc, total recoverable, monthly average140 ug/L≤ 137 ug/L2%
March 2026Zinc, total recoverable, weekly average140 ug/L≤ 137 ug/L2%
April 2026Phosphorus, total [as P], monthly average1.39 mg/L≤ 1 mg/L39%
April 2026Phosphorus, total [as P], weekly average2.028 mg/L≤ 1.5 mg/L35%
April 2026Phosphorus, total [as P], weekly average25.2 lb/d≤ 20.9 lb/d21%
May 2026Phosphorus, total [as P], monthly average1.16 mg/L≤ 1 mg/L16%
May 2026Phosphorus, total [as P], weekly average1.72 mg/L≤ 1.5 mg/L15%
May 2026Phosphorus, total [as P], weekly average29.4 lb/d≤ 20.9 lb/d41%
June 2026Phosphorus, total [as P], monthly average1.16 mg/L≤ 1 mg/L16%
June 2026Phosphorus, total [as P], weekly average1.732 mg/L≤ 1.5 mg/L15%
June 2026Phosphorus, total [as P], weekly average22.1 lb/d≤ 20.9 lb/d6%
July 2026Zinc, total recoverable, monthly average370 ug/L≤ 137 ug/L170%
July 2026Zinc, total recoverable, weekly average370 ug/L≤ 137 ug/L170%
September 2026Phosphorus, total [as P], monthly average1.067 mg/L≤ 1 mg/L7%
September 2026Phosphorus, total [as P], weekly average1.728 mg/L≤ 1.5 mg/L15%

Limits in force (63)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 4.8 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 7.2 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 80.1 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 100.1 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≤ 166.8 lb/dall year001
Solids, total suspendedweekly average≤ 208.5 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≤ 1 mg/Lall year001
Nitrogen, ammonia total [as N]weekly average≤ 1.5 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 16.7 lb/dall year001
Nitrogen, ammonia total [as N]weekly average≤ 20.9 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≤ 1 mg/Lall year001
Phosphorus, total [as P]weekly average≤ 1.5 mg/Lall year001
Phosphorus, total [as P]monthly average≤ 16.7 lb/dall year001
Phosphorus, total [as P]weekly average≤ 20.9 lb/dall year001
Zinc, total recoverablemonthly average≤ 137 ug/Lall year001
Zinc, total recoverableweekly average≤ 137 ug/Lall year001
Zinc, total recoverablemonthly average≤ 2.29 lb/dall year001
Zinc, total recoverableweekly average≤ 2.29 lb/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
Chlorine, total residualmaximum≤ .02 mg/Lall year001
E. colimonthly geometric mean≤ 126 #/100mLall year001
E. coliweekly geometric mean≤ 410 #/100mLall year001
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year001
Coliform, fecal generalweekly geometric mean≤ 400 #/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
Turbidityinstantaneous maximum≤ 3 NTUall year002
BOD, 5-day, 20 deg. Cmonthly average≤ 5 mg/Lall year002
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year002
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 5 mg/Lall year002
Solids, total suspendedmonthly averagereport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly average≤ 2 MGDall year002
Flow, in conduit or thru treatment plantweekly average≤ 2.5 MGDall year002
E. colimonthly average≤ 20 #/100mLall year002
E. colimaximum≤ 75 #/100mLall year002
Flow, in conduit or thru treatment plantmonthly average≤ 2 MGDall yearSUM
Flow, in conduit or thru treatment plantweekly average≤ 2.5 MGDall yearSUM

How strict are these limits?

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

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