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City of Hoschton

Sewage treatment plant, Hoschton, Georgia. NPDES permit GA0035980, in force until Jun 30, 2029. Last 12 months: over a limit 59 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form B3 monthly (37 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
43 values over a limit, 0 required values missing, 1 of 12 reports late

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

All 59 values over a limit
Period endingParameterReportedLimitOver by
November 2025E. coli, weekly geometric mean461 #/100mL≤ 410 #/100mL12%
November 2025Nitrogen, ammonia total [as N], weekly average1.92 mg/L≤ 1.14 mg/L68%
November 2025Nitrogen, ammonia total [as N], weekly average5.55 lb/d≤ 4 lb/d39%
December 2025E. coli, weekly geometric mean2420 #/100mL≤ 410 #/100mL490%
December 2025Nitrogen, ammonia total [as N], monthly average2.18 mg/L≤ .76 mg/L187%
December 2025Nitrogen, ammonia total [as N], monthly average5.7 lb/d≤ 3.2 lb/d78%
December 2025Nitrogen, ammonia total [as N], weekly average13.22 lb/d≤ 4 lb/d231%
December 2025Nitrogen, ammonia total [as N], weekly average4.87 mg/L≤ 1.14 mg/L327%
January 2026E. coli, monthly geometric mean805 #/100mL≤ 126 #/100mL539%
January 2026E. coli, weekly geometric mean1986 #/100mL≤ 410 #/100mL384%
January 2026Nitrogen, ammonia total [as N], monthly average13.44 mg/L≤ .76 mg/L1668%
January 2026Nitrogen, ammonia total [as N], monthly average41.04 lb/d≤ 3.2 lb/d1183%
January 2026Nitrogen, ammonia total [as N], weekly average31.2 mg/L≤ 1.14 mg/L2637%
January 2026Nitrogen, ammonia total [as N], weekly average92.3 lb/d≤ 4 lb/d2208%
February 2026BOD, 5-day, 20 deg. C, monthly average10.6 mg/L≤ 8 mg/L33%
February 2026BOD, 5-day, 20 deg. C, weekly average15 mg/L≤ 12 mg/L25%
February 2026BOD, 5-day, 20 deg. C, weekly average47 lb/d≤ 41.7 lb/d13%
February 2026E. coli, monthly geometric mean250 #/100mL≤ 126 #/100mL98%
February 2026E. coli, weekly geometric mean1373 #/100mL≤ 410 #/100mL235%
February 2026Nitrogen, ammonia total [as N], monthly average21.35 mg/L≤ .76 mg/L2709%
February 2026Nitrogen, ammonia total [as N], monthly average66.13 lb/d≤ 3.2 lb/d1967%
February 2026Nitrogen, ammonia total [as N], weekly average116.37 lb/d≤ 4 lb/d2809%
February 2026Nitrogen, ammonia total [as N], weekly average36.95 mg/L≤ 1.14 mg/L3141%
April 2026BOD, 5-day, 20 deg. C, monthly average9 mg/L≤ 8 mg/L13%
April 2026BOD, 5-day, 20 deg. C, weekly average15 mg/L≤ 12 mg/L25%
April 2026BOD, 5-day, 20 deg. C, weekly average47.8 lb/d≤ 41.7 lb/d15%
April 2026E. coli, monthly geometric mean459 #/100mL≤ 126 #/100mL264%
April 2026E. coli, weekly geometric mean2419.6 #/100mL≤ 410 #/100mL490%
April 2026Nitrogen, ammonia total [as N], monthly average2.71 mg/L≤ .76 mg/L257%
April 2026Nitrogen, ammonia total [as N], monthly average7.35 lb/d≤ 3.2 lb/d130%
April 2026Nitrogen, ammonia total [as N], weekly average18.66 lb/d≤ 4 lb/d367%
April 2026Nitrogen, ammonia total [as N], weekly average7.29 mg/L≤ 1.14 mg/L539%
May 2026Nitrogen, ammonia total [as N], monthly average2.04 mg/L≤ .76 mg/L168%
May 2026Nitrogen, ammonia total [as N], monthly average6.58 lb/d≤ 3.2 lb/d106%
May 2026Nitrogen, ammonia total [as N], weekly average18.92 lb/d≤ 4 lb/d373%
May 2026Nitrogen, ammonia total [as N], weekly average6 mg/L≤ 1.14 mg/L426%
June 2026Nitrogen, ammonia total [as N], monthly average2.02 mg/L≤ .76 mg/L166%
June 2026Nitrogen, ammonia total [as N], monthly average6.24 lb/d≤ 3.2 lb/d95%
June 2026Nitrogen, ammonia total [as N], weekly average16.92 lb/d≤ 4 lb/d323%
June 2026Nitrogen, ammonia total [as N], weekly average5.47 mg/L≤ 1.14 mg/L380%
July 2026E. coli, monthly geometric mean246 #/100mL≤ 126 #/100mL95%
July 2026E. coli, weekly geometric mean3465 #/100mL≤ 410 #/100mL745%
July 2026Nitrogen, ammonia total [as N], monthly average17.23 lb/d≤ 3.2 lb/d438%
July 2026Nitrogen, ammonia total [as N], monthly average5.18 mg/L≤ .76 mg/L582%
July 2026Nitrogen, ammonia total [as N], weekly average26.97 lb/d≤ 4 lb/d574%
July 2026Nitrogen, ammonia total [as N], weekly average8.16 mg/L≤ 1.14 mg/L616%
August 2026Nitrogen, ammonia total [as N], monthly average10.65 mg/L≤ .76 mg/L1301%
August 2026Nitrogen, ammonia total [as N], monthly average30.61 lb/d≤ 3.2 lb/d857%
August 2026Nitrogen, ammonia total [as N], weekly average12.75 mg/L≤ 1.14 mg/L1018%
August 2026Nitrogen, ammonia total [as N], weekly average37.39 lb/d≤ 4 lb/d835%
September 2026BOD, 5-day, 20 deg. C, monthly average8.3 mg/L≤ 8 mg/L4%
September 2026BOD, 5-day, 20 deg. C, weekly average16.5 mg/L≤ 12 mg/L38%
September 2026Nitrogen, ammonia total [as N], monthly average1.9 mg/L≤ .76 mg/L150%
September 2026Nitrogen, ammonia total [as N], monthly average5.1 lb/d≤ 3.2 lb/d59%
September 2026Nitrogen, ammonia total [as N], weekly average16.4 lb/d≤ 4 lb/d310%
September 2026Nitrogen, ammonia total [as N], weekly average6.1 mg/L≤ 1.14 mg/L435%
September 2026Solids, total suspended, monthly average15 mg/L≤ 10 mg/L50%
September 2026Solids, total suspended, weekly average26.5 mg/L≤ 15 mg/L77%
September 2026Solids, total suspended, weekly average66.9 lb/d≤ 52.1 lb/d28%

Limits in force (37)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 8 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 12 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 33.4 lb/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 41.7 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≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 10 mg/Lall year
Solids, total suspendedweekly average≤ 15 mg/Lall year
Solids, total suspendedmonthly average≤ 41.7 lb/dall year
Solids, total suspendedweekly average≤ 52.1 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≤ .76 mg/Lall year
Nitrogen, ammonia total [as N]weekly average≤ 1.14 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 3.2 lb/dall year
Nitrogen, ammonia total [as N]weekly average≤ 4 lb/dall year
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≤ .5 MGDall year
Flow, in conduit or thru treatment plantweekly average≤ .625 MGDall year
Chlorine, total residualmaximum≤ .01 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

New limits from Jul 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Phosphorus, total [as P], monthly average1 mg/Lnew1.86 mg/L (12 values)1.86×
Phosphorus, total [as P], monthly average4.2 lb/dnew——
Phosphorus, total [as P], weekly average1.5 mg/Lnew——
Phosphorus, total [as P], weekly average5.2 lb/dnew——

How strict are these limits?

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

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