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Sewage treatment plant, major discharger, Peachtree City, Georgia. NPDES permit GA0035777, in force until Nov 30, 2028. Last 12 months: over a limit 12 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| October 2025 | 001 | Flow, in conduit or thru treatment plant, monthly average | .751 MGD | ≤ .7 MGD | 7% |
| October 2025 | 001 | Flow, in conduit or thru treatment plant, weekly average | .923 MGD | ≤ .9 MGD | 3% |
| February 2026 | 001 | Flow, in conduit or thru treatment plant, weekly average | 1.444 MGD | ≤ 1.4 MGD | 3% |
| February 2026 | 002 | Flow, in conduit or thru treatment plant, weekly average | 1.12 MGD | ≤ 1.1 MGD | 2% |
| May 2026 | 001 | Flow, in conduit or thru treatment plant, monthly average | .817 MGD | ≤ .7 MGD | 17% |
| May 2026 | 001 | Flow, in conduit or thru treatment plant, weekly average | .928 MGD | ≤ .9 MGD | 3% |
| June 2026 | 001 | Flow, in conduit or thru treatment plant, monthly average | .803 MGD | ≤ .7 MGD | 15% |
| July 2026 | 001 | Flow, in conduit or thru treatment plant, monthly average | .781 MGD | ≤ .7 MGD | 12% |
| August 2026 | 001 | Flow, in conduit or thru treatment plant, monthly average | .817 MGD | ≤ .7 MGD | 17% |
| August 2026 | 001 | Flow, in conduit or thru treatment plant, weekly average | .933 MGD | ≤ .9 MGD | 4% |
| September 2026 | 001 | Flow, in conduit or thru treatment plant, monthly average | .782 MGD | ≤ .7 MGD | 12% |
| September 2026 | 001 | Flow, in conduit or thru treatment plant, weekly average | .91 MGD | ≤ .9 MGD | 1% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | minimum | ≥ 6 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 8 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 5 mg/L | May–Oct | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 12 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 7.5 mg/L | May–Oct | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 73 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 29.2 lb/d | May–Oct | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 92 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 36.5 lb/d | May–Oct | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | report only (mg/L) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year | 001 |
| BOD, 5-day, 20 deg. C | weekly average | report only (lb/d) | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | maximum | ≤ 8.5 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 10 mg/L | all year | 001 |
| Solids, total suspended | weekly average | ≤ 15 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 58 lb/d | all year | 001 |
| Solids, total suspended | weekly average | ≤ 73 lb/d | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | weekly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 001 |
| Solids, total suspended | weekly average | report only (lb/d) | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, organic total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 1.5 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 3 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 5.8 lb/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 18.3 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 7.3 lb/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 22.9 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphate, ortho [as P] | monthly average | report only (mg/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .7 MGD | May–Oct | 001 |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 1.1 MGD | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Flow, in conduit or thru treatment plant | weekly average | ≤ .9 MGD | May–Oct | 001 |
| Flow, in conduit or thru treatment plant | weekly average | ≤ 1.4 MGD | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Chlorine, total residual | maximum | ≤ .03 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Chlorine, total residual | maximum | ≤ .04 mg/L | May–Oct | 001 |
| E. coli | monthly geometric mean | ≤ 20 #/100mL | May–Oct | 001 |
| E. coli | monthly geometric mean | ≤ 126 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| E. coli | weekly geometric mean | ≤ 40 #/100mL | May–Oct | 001 |
| E. coli | weekly geometric mean | ≤ 410 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Solids, sludge, total, dry weight | monthly total | report only (dry ton) | all year | 001 |
| BOD, 5-day, percent removal | minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | minimum | ≥ 85 % | all year | 001 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum | report only (%) | all year | 001 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | minimum | report only (%) | all year | 001 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum | report only (%) | all year | 001 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | minimum | report only (%) | all year | 001 |
| Oxygen, dissolved [DO] | minimum | ≥ 6 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 5 mg/L | May–Oct | 002 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 8 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 002 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 7.5 mg/L | May–Oct | 002 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 12 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 002 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 37.5 lb/d | May–Oct | 002 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 60 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 002 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 46.9 lb/d | May–Oct | 002 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 75 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 002 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 002 |
| BOD, 5-day, 20 deg. C | weekly average | report only (mg/L) | all year | 002 |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year | 002 |
| BOD, 5-day, 20 deg. C | weekly average | report only (lb/d) | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 002 |
| pH | maximum | ≤ 8.5 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 10 mg/L | all year | 002 |
| Solids, total suspended | weekly average | ≤ 15 mg/L | all year | 002 |
| Solids, total suspended | monthly average | ≤ 75 lb/d | all year | 002 |
| Solids, total suspended | weekly average | ≤ 94 lb/d | all year | 002 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 002 |
| Solids, total suspended | weekly average | report only (mg/L) | all year | 002 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 002 |
| Solids, total suspended | weekly average | report only (lb/d) | all year | 002 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, organic total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 mg/L | May–Oct | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 002 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 1.5 mg/L | May–Oct | 002 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 3 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 5.8 lb/d | May–Oct | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 15 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 002 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 7.3 lb/d | May–Oct | 002 |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 18.8 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 002 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 002 |
| Phosphate, ortho [as P] | monthly average | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .9 MGD | all year | 002 |
| Flow, in conduit or thru treatment plant | weekly average | ≤ 1.1 MGD | all year | 002 |
| Chlorine, total residual | maximum | ≤ .02 mg/L | all year | 002 |
| E. coli | monthly geometric mean | ≤ 126 #/100mL | all year | 002 |
| E. coli | weekly geometric mean | ≤ 410 #/100mL | all year | 002 |
| BOD, 5-day, percent removal | minimum | ≥ 85 % | all year | 002 |
| Solids, suspended percent removal | minimum | ≥ 85 % | all year | 002 |
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum | report only (%) | all year | 002 |
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | minimum | report only (%) | all year | 002 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum | report only (%) | all year | 002 |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | minimum | report only (%) | all year | 002 |
| Turbidity | maximum | ≤ 3 NTU | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 5 mg/L | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 003 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | monthly average | ≤ 5 mg/L | all year | 003 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | ≤ 1.1 MGD | all year | 003 |
| Flow, in conduit or thru treatment plant | weekly average | ≤ 1.4 MGD | all year | 003 |
| E. coli | monthly geometric mean | ≤ 20 #/100mL | all year | 003 |
| E. coli | maximum | ≤ 75 #/100mL | all year | 003 |
| Temperature, water deg. fahrenheit | monthly minimum | report only (deg F) | May–Oct | 004 |
| Temperature, water deg. fahrenheit | monthly maximum | report only (deg F) | May–Oct | 004 |
| Temperature, water deg. fahrenheit | monthly minimum | report only (deg F) | May–Oct | 004 |
| Temperature, water deg. fahrenheit | monthly maximum | report only (deg F) | May–Oct | 004 |
| Oxygen, dissolved [DO] | monthly minimum | report only (mg/L) | May–Oct | 004 |
| Oxygen, dissolved [DO] | monthly minimum | report only (mg/L) | May–Oct | 004 |
| Temperature, water deg. fahrenheit | monthly minimum | report only (deg F) | May–Oct | 005 |
| Temperature, water deg. fahrenheit | monthly maximum | report only (deg F) | May–Oct | 005 |
| Temperature, water deg. fahrenheit | monthly minimum | report only (deg F) | May–Oct | 005 |
| Temperature, water deg. fahrenheit | monthly minimum | report only (deg F) | May–Oct | 005 |
| Temperature, water deg. fahrenheit | monthly maximum | report only (deg F) | May–Oct | 005 |
| Temperature, water deg. fahrenheit | monthly maximum | report only (deg F) | May–Oct | 005 |
| Oxygen, dissolved [DO] | monthly minimum | report only (mg/L) | May–Oct | 005 |
| Oxygen, dissolved [DO] | monthly minimum | report only (mg/L) | May–Oct | 005 |
| Oxygen, dissolved [DO] | monthly minimum | report only (mg/L) | May–Oct | 005 |
Cited limits by parameter: Georgia's rules and the federal ones.
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