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Cadwell, Town of

Sewage treatment plant, Cadwell, Georgia. NPDES permit GA0025887 expired Oct 31, 2025; its limits still apply. Last 12 months: over a limit 15 times (last September 2026), 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form B1 monthly (36 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
16 values over a limit, 0 required values missing, 1 of 12 reports late

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

All 15 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, monthly average35 mg/L≤ 30 mg/L17%
October 2025Solids, suspended percent removal, minimum63 %≥ 65 %6%
January 2026Nitrogen, ammonia total [as N], monthly average19.8 mg/L≤ 12 mg/L65%
January 2026Nitrogen, ammonia total [as N], weekly average21.1 mg/L≤ 18 mg/L17%
February 2026Nitrogen, ammonia total [as N], monthly average19.7 mg/L≤ 12 mg/L64%
February 2026Nitrogen, ammonia total [as N], weekly average20.9 mg/L≤ 18 mg/L16%
March 2026Nitrogen, ammonia total [as N], monthly average13.3 mg/L≤ 12 mg/L11%
April 2026Solids, suspended percent removal, minimum56 %≥ 65 %26%
June 2026Nitrogen, ammonia total [as N], monthly average15.33 mg/L≤ 12 mg/L28%
June 2026Oxygen, dissolved [DO], minimum4.9 mg/L≥ 5 mg/L2%
July 2026Oxygen, dissolved [DO], minimum4.7 mg/L≥ 5 mg/L6%
August 2026Oxygen, dissolved [DO], minimum3.7 mg/L≥ 5 mg/L26%
September 2026BOD, 5-day, 20 deg. C, monthly average32 mg/L≤ 30 mg/L7%
September 2026Nitrogen, ammonia total [as N], monthly average15.8 mg/L≤ 12 mg/L32%
September 2026Oxygen, dissolved [DO], minimum3 mg/L≥ 5 mg/L40%

Limits in force (36)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 5 kg/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 7 kg/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 (kg/d)all year
BOD, 5-day, 20 deg. Cweekly averagereport only (kg/d)all year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 90 mg/Lall year
Solids, total suspendedweekly average≤ 120 mg/Lall year
Solids, total suspendedmonthly average≤ 16 kg/dall year
Solids, total suspendedweekly average≤ 20 kg/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 (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, ammonia total [as N]monthly average≤ 12 mg/Lall year
Nitrogen, ammonia total [as N]weekly average≤ 18 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 2.2 kg/dall year
Nitrogen, ammonia total [as N]weekly average≤ 2.7 kg/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≤ .048 MGDall year
Flow, in conduit or thru treatment plantweekly average≤ .06 MGDall year
Chlorine, total residualdaily maximum≤ .04 mg/Lall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year
Solids, sludge, total, dry weightmonthly totalreport only (ton)all year
BOD, 5-day, percent removalminimum≥ 65 %all year
Solids, suspended percent removalminimum≥ 65 %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

Your permit document is the final word. As JSON: /api/v1/permits/GA0025887 · MCP: https://passage-data.com/mcp