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Calhoun, City of

Sewage treatment plant, major discharger, Calhoun, Georgia. NPDES permit GA0030333, in force until Aug 31, 2028. Last 12 months: no values over a limit, 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form 1 monthly (48 values)
Renewal application due
Mar 4, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 12 reports late

Limits in force (61)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/LJun–Sep
Oxygen, dissolved [DO]minimum≥ 5 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 20 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/LJun–Sep
BOD, 5-day, 20 deg. Cweekly average≤ 30 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec
BOD, 5-day, 20 deg. Cweekly average≤ 15 mg/LJun–Sep
BOD, 5-day, 20 deg. Cmonthly average≤ 2669 lb/dJan, Feb, Mar, Apr, May, Oct, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 1334 lb/dJun–Sep
BOD, 5-day, 20 deg. Cweekly average≤ 3336 lb/dJan, Feb, Mar, Apr, May, Oct, Nov, Dec
BOD, 5-day, 20 deg. Cweekly average≤ 1668 lb/dJun–Sep
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≤ 20 mg/LJun–Sep
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec
Solids, total suspendedweekly average≤ 30 mg/LJun–Sep
Solids, total suspendedweekly average≤ 45 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec
Solids, total suspendedmonthly average≤ 2669 lb/dJun–Sep
Solids, total suspendedmonthly average≤ 4003 lb/dJan, Feb, Mar, Apr, May, Oct, Nov, Dec
Solids, total suspendedweekly average≤ 3336 lb/dJun–Sep
Solids, total suspendedweekly average≤ 5004 lb/dJan, Feb, Mar, Apr, May, Oct, Nov, Dec
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≤ 5 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LJun–Sep
Nitrogen, ammonia total [as N]weekly average≤ 7.5 mg/LJan, Feb, Mar, Apr, May, Oct, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 3 mg/LJun–Sep
Nitrogen, ammonia total [as N]monthly average≤ 667 lb/dJan, Feb, Mar, Apr, May, Oct, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 267 lb/dJun–Sep
Nitrogen, ammonia total [as N]weekly average≤ 834 lb/dJan, Feb, Mar, Apr, May, Oct, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 336 lb/dJun–Sep
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 average≤ 1 mg/Lall year
Phosphorus, total [as P]weekly average≤ 1.5 mg/Lall year
Phosphorus, total [as P]monthly average≤ 133 lb/dall year
Phosphorus, total [as P]weekly average≤ 167 lb/dall year
Color [admi units]minimumreport only (col unit)all year
Color [admi units]maximumreport only (col unit)all year
Phosphate, ortho [as P]monthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ 16 MGDall year
Flow, in conduit or thru treatment plantweekly average≤ 20 MGDall year
Chlorine, total residualdaily maximum≤ .15 mg/Lall year
E. colimonthly geometric mean≤ 126 #/100mLall year
E. coliweekly geometric mean≤ 410 #/100mLall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/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
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimumreport only (%)all year
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasminimumreport only (%)all year
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimumreport only (%)all year
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasminimumreport only (%)all year

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

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