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Macon Water Authority

Sewage treatment plant, major discharger, Macon, Georgia. NPDES permit GA0024538 expired Feb 28, 2023; its limits still apply. Last 12 months: over a limit once (last March 2026), 10 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 46 days after each period: form 2 monthly (76 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
March 2026Chlorine, total residual, daily maximum.25 mg/L≤ .13 mg/L92%

Limits in force (124)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 2 mg/Lall year
Oxygen, dissolved [DO]minimum≥ 2 mg/Lall year
pHminimum≥ 6 SUall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 2274 kg/dall year
Solids, total suspendedmonthly average≤ 2274 kg/dall year
Solids, total suspendedweekly average≤ 2843 kg/dall year
Solids, total suspendedweekly average≤ 2843 kg/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all year
Solids, total suspendedmonthly averagereport only (kg/d)all year
Solids, total suspendedmonthly averagereport only (kg/d)all year
Solids, total suspendedweekly averagereport only (kg/d)all year
Solids, total suspendedweekly averagereport only (kg/d)all year
Nitrogen, organic 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≤ 7 mg/LSep
Nitrogen, ammonia total [as N]monthly average≤ 7 mg/LSep
Nitrogen, ammonia total [as N]monthly average≤ 9 mg/LAug
Nitrogen, ammonia total [as N]monthly average≤ 9 mg/LAug
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/LJul
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/LJul
Nitrogen, ammonia total [as N]monthly average≤ 11 mg/LJun, Oct
Nitrogen, ammonia total [as N]monthly average≤ 11 mg/LJun, Oct
Nitrogen, ammonia total [as N]monthly average≤ 17.4 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 17.4 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 10.5 mg/LSep
Nitrogen, ammonia total [as N]weekly average≤ 10.5 mg/LSep
Nitrogen, ammonia total [as N]weekly average≤ 13.5 mg/LAug
Nitrogen, ammonia total [as N]weekly average≤ 13.5 mg/LAug
Nitrogen, ammonia total [as N]weekly average≤ 15 mg/LJul
Nitrogen, ammonia total [as N]weekly average≤ 15 mg/LJul
Nitrogen, ammonia total [as N]weekly average≤ 16.5 mg/LJun, Oct
Nitrogen, ammonia total [as N]weekly average≤ 16.5 mg/LJun, Oct
Nitrogen, ammonia total [as N]weekly average≤ 26.1 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 26.1 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 531 kg/dSep
Nitrogen, ammonia total [as N]monthly average≤ 531 kg/dSep
Nitrogen, ammonia total [as N]monthly average≤ 682 kg/dAug
Nitrogen, ammonia total [as N]monthly average≤ 682 kg/dAug
Nitrogen, ammonia total [as N]monthly average≤ 758 kg/dJul
Nitrogen, ammonia total [as N]monthly average≤ 758 kg/dJul
Nitrogen, ammonia total [as N]monthly average≤ 834 kg/dJun, Oct
Nitrogen, ammonia total [as N]monthly average≤ 834 kg/dJun, Oct
Nitrogen, ammonia total [as N]monthly average≤ 1319 kg/dJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 1319 kg/dJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 633 kg/dSep
Nitrogen, ammonia total [as N]weekly average≤ 633 kg/dSep
Nitrogen, ammonia total [as N]weekly average≤ 853 kg/dAug
Nitrogen, ammonia total [as N]weekly average≤ 853 kg/dAug
Nitrogen, ammonia total [as N]weekly average≤ 948 kg/dJul
Nitrogen, ammonia total [as N]weekly average≤ 948 kg/dJul
Nitrogen, ammonia total [as N]weekly average≤ 1042 kg/dJun, Oct
Nitrogen, ammonia total [as N]weekly average≤ 1042 kg/dJun, Oct
Nitrogen, ammonia total [as N]weekly average≤ 1649 kg/dJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, ammonia total [as N]weekly average≤ 1649 kg/dJan, Feb, Mar, Apr, May, Nov, Dec
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all 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
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]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
Phosphate, ortho [as P]monthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmonthly average≤ 20 MGDall year
Flow, in conduit or thru treatment plantmonthly average≤ 20 MGDall year
Flow, in conduit or thru treatment plantweekly average≤ 25 MGDall year
Flow, in conduit or thru treatment plantweekly average≤ 25 MGDall year
Chlorine, total residualdaily maximum≤ .13 mg/Lall year
Chlorine, total residualdaily maximum≤ .13 mg/Lall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year
Solids, sludge, total, dry weightmonthly totalreport only (dry ton)all year
Solids, sludge, total, dry weightmonthly totalreport only (dry ton)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 19 mg/LJul–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 19 mg/LJul–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 24 mg/LJun
BOD, carbonaceous [5 day, 20 C]monthly average≤ 24 mg/LJun
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 28.5 mg/LJul–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 28.5 mg/LJul–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 36 mg/LJun
BOD, carbonaceous [5 day, 20 C]weekly average≤ 36 mg/LJun
BOD, carbonaceous [5 day, 20 C]weekly average≤ 37.5 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 37.5 mg/LJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1440 kg/dJul–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1440 kg/dJul–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1819 kg/dJun
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1819 kg/dJun
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1895 kg/dJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1895 kg/dJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 1800 kg/dJul–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 1800 kg/dJul–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 2274 kg/dJun
BOD, carbonaceous [5 day, 20 C]weekly average≤ 2274 kg/dJun
BOD, carbonaceous [5 day, 20 C]weekly average≤ 2369 kg/dJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 2369 kg/dJan, Feb, Mar, Apr, May, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]weekly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]weekly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (kg/d)all year
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (kg/d)all year
BOD, carbonaceous [5 day, 20 C]weekly averagereport only (kg/d)all year
BOD, carbonaceous [5 day, 20 C]weekly averagereport only (kg/d)all year
BOD, carbonaceous, percent removalminimum≥ 85 %all year
BOD, carbonaceous, percent removalminimum≥ 85 %all year
Solids, suspended percent removalminimum≥ 85 %all year
Solids, suspended percent removalminimum≥ 85 %all year
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaminimumreport only (%)all year
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaminimumreport only (%)all year
Noel Statre 7Day Chronic Pimephalesminimumreport only (%)all year
Noel Statre 7Day Chronic Pimephalesminimumreport only (%)all year

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/GA0024538 · MCP: https://passage-data.com/mcp