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City of Cochran

Sewage treatment plant, major discharger, Cochran, Georgia. NPDES permit GA0032107, in force until Jun 30, 2029. Last 12 months: over a limit 12 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form B1 monthly (41 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
7 values over a limit, 0 required values missing, 1 of 21 reports late

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

Period endingParameterReportedLimitOver by
December 2025BOD, 5-day, 20 deg. C, weekly average8 mg/L≤ 7.5 mg/L7%
January 2026BOD, 5-day, 20 deg. C, weekly average9 mg/L≤ 7.5 mg/L20%
February 2026Nitrogen, ammonia total [as N], monthly average1.2 mg/L≤ .9 mg/L33%
February 2026Nitrogen, ammonia total [as N], weekly average10.3 lb/d≤ 9.4 lb/d10%
February 2026Nitrogen, ammonia total [as N], weekly average2 mg/L≤ 1.35 mg/L48%
March 2026Nitrogen, ammonia total [as N], monthly average1.9 mg/L≤ .9 mg/L111%
March 2026Nitrogen, ammonia total [as N], monthly average10.6 lb/d≤ 7.5 lb/d41%
March 2026Nitrogen, ammonia total [as N], weekly average18.9 lb/d≤ 9.4 lb/d101%
March 2026Nitrogen, ammonia total [as N], weekly average3.33 mg/L≤ 1.35 mg/L147%
April 2026Nitrogen, ammonia total [as N], weekly average1.6 mg/L≤ 1.35 mg/L19%
June 2026Nitrogen, ammonia total [as N], weekly average1.37 mg/L≤ 1.35 mg/L1%
July 2026BOD, 5-day, percent removal, minimum82 %≥ 85 %20%

Limits in force (41)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]minimum≥ 6 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 5 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 7.5 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 42 lb/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 52 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≤ 83 lb/dall year
Solids, total suspendedweekly average≤ 104 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≤ .9 mg/Lall year
Nitrogen, ammonia total [as N]weekly average≤ 1.35 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 7.5 lb/dall year
Nitrogen, ammonia total [as N]weekly average≤ 9.4 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≤ 1 MGDall year
Flow, in conduit or thru treatment plantweekly average≤ 1.3 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
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 96 %all year
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasminimum≥ 96 %all year
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum≥ 96 %all year
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasminimum≥ 96 %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/GA0032107 · MCP: https://passage-data.com/mcp