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City of Mount Vernon

Sewage treatment plant, Mount Vernon, Georgia. NPDES permit GA0033758, in force until Jan 31, 2028. Last 12 months: over a limit 2 times (last June 2026), 119 required values missing, 1 of 26 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form B1 monthly (37 values), outfall 002 form SW monthly (5 values), outfall 003 form SW monthly (5 values), outfall 004 form SW monthly (5 values)
Renewal application due
Aug 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 0 of 30 reports late

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

Period endingParameterReportedLimitOver by
May 2026Flow, in conduit or thru treatment plant, weekly average39 MGD≤ .34 MGD11371%
June 2026Flow, in conduit or thru treatment plant, monthly average.29 MGD≤ .27 MGD7%

Limits in force (52)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimum≥ 6 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 15 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 22.5 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 34 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 42 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≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 68 lb/dall year001
Solids, total suspendedweekly average≤ 84 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≤ 2.2 mg/Lall year001
Nitrogen, ammonia total [as N]weekly average≤ 3.3 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 5 lb/dall year001
Nitrogen, ammonia total [as N]weekly average≤ 6.2 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 averagereport only (mg/L)all year001
Phosphate, ortho [as P]monthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly average≤ .27 MGDall year001
Flow, in conduit or thru treatment plantweekly average≤ .34 MGDall year001
Chlorine, total residualdaily maximum≤ .01 mg/Lall year001
E. colimonthly geometric mean≤ 126 #/100mLall year001
E. coliweekly geometric mean≤ 410 #/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
Temperature, water deg. fahrenheitminimumreport only (deg F)May–Oct002
Temperature, water deg. fahrenheitmaximumreport only (deg F)May–Oct002
Oxygen, dissolved [DO]minimumreport only (mg/L)May–Oct002
pHminimumreport only (SU)May–Oct002
pHmaximumreport only (SU)May–Oct002
Temperature, water deg. fahrenheitminimumreport only (deg F)May–Oct003
Temperature, water deg. fahrenheitmaximumreport only (deg F)May–Oct003
Oxygen, dissolved [DO]minimumreport only (mg/L)May–Oct003
pHminimumreport only (SU)May–Oct003
pHmaximumreport only (SU)May–Oct003
Temperature, water deg. fahrenheitminimumreport only (deg F)May–Oct004
Temperature, water deg. fahrenheitmaximumreport only (deg F)May–Oct004
Oxygen, dissolved [DO]minimumreport only (mg/L)May–Oct004
pHminimumreport only (SU)May–Oct004
pHmaximumreport only (SU)May–Oct004

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

Your permit document is the final word. As JSON: /api/v1/permits/GA0033758 · MCP: https://passage-data.com/mcp