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Sewage treatment plant, Simpsonville, Kentucky. NPDES permit KY0065889, in force until Aug 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | average | report only (deg F) | May–Oct | 001 |
| Temperature, water deg. fahrenheit | average | report only (deg F) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Temperature, water deg. fahrenheit | maximum | report only (deg F) | May–Oct | 001 |
| Temperature, water deg. fahrenheit | maximum | report only (deg F) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 7 mg/L | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 188 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 282 lb/d | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | maximum weekly average | report only (mg/L) | all year | 001 |
| Oil & Grease | average | report only (mg/L) | all year | 001 |
| Oil & Grease | maximum | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 7.5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 12.5 lb/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 31.3 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 18.8 lb/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 46.9 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Phosphorus, total [as P] | average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year | 001 |
| Phosphorus, total [as P] | maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | ≤ 2 mg/L | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | maximum weekly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | maximum weekly average | report only (MGD) | all year | 001 |
| E. coli | 30-day geometric mean | ≤ 130 #/100mL | all year | 001 |
| E. coli | 7-day geometric mean | ≤ 240 #/100mL | all year | 001 |
| Nitrogen, Kjeldahl Total | average | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl Total | maximum | report only (mg/L) | all year | 001 |
| Nitrite Plus Nitrate Total | average | report only (mg/L) | all year | 001 |
| Nitrite Plus Nitrate Total | maximum | report only (mg/L) | all year | 001 |
| Solids, total dissolved [TDS] | average | report only (mg/L) | all year | 001 |
| Solids, total dissolved [TDS] | maximum | report only (mg/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 15 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 62.6 lb/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 93.9 lb/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | report only (mg/L) | all year | 001 |
| BOD, carb-5 day, 20 deg C, percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | all year | 002 |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year | 002 |
| Phosphorus, total [as P] | daily maximum | ≤ 2 mg/L | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | maximum weekly average | report only (MGD) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 15 mg/L | all year | 002 |
Cited limits by parameter: Kentucky'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/KY0065889 · MCP: https://passage-data.com/mcp