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Sewage treatment plant, Frankfort, Kentucky. NPDES permit KY0074977, in force until Aug 31, 2030. Last 12 months: over a limit 70 times (last August 2026), 2 required values missing, 1 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | BOD, carbonaceous [5 day, 20 C], monthly average | 13.6 mg/L | ≤ 10 mg/L | 36% |
| October 2025 | BOD, carbonaceous [5 day, 20 C], maximum weekly average | 31 mg/L | ≤ 15 mg/L | 107% |
| October 2025 | E. coli, 30-day geometric mean | 1184.55 #/100mL | ≤ 130 #/100mL | 811% |
| October 2025 | E. coli, 7-day geometric mean | 2420 #/100mL | ≤ 240 #/100mL | 908% |
| October 2025 | Nitrogen, ammonia total [as N], daily maximum | 26.4 mg/L | ≤ 3 mg/L | 780% |
| October 2025 | Nitrogen, ammonia total [as N], monthly average | 5.6 mg/L | ≤ 2 mg/L | 180% |
| October 2025 | Oxygen, dissolved [DO], instantaneous minimum | 5.2 mg/L | ≥ 7 mg/L | 26% |
| October 2025 | pH, minimum | 5.62 SU | ≥ 6 SU | — |
| November 2025 | E. coli, 30-day geometric mean | 2420 #/100mL | ≤ 130 #/100mL | 1762% |
| November 2025 | E. coli, 7-day geometric mean | 2420 #/100mL | ≤ 240 #/100mL | 908% |
| November 2025 | Oxygen, dissolved [DO], instantaneous minimum | 6.6 mg/L | ≥ 7 mg/L | 6% |
| December 2025 | BOD, carbonaceous [5 day, 20 C], monthly average | 85.8 mg/L | ≤ 10 mg/L | 758% |
| December 2025 | BOD, carbonaceous [5 day, 20 C], maximum weekly average | 130 mg/L | ≤ 15 mg/L | 767% |
| December 2025 | E. coli, 7-day geometric mean | 2420 #/100mL | ≤ 240 #/100mL | 908% |
| December 2025 | Nitrogen, ammonia total [as N], daily maximum | 29.3 mg/L | ≤ 15 mg/L | 95% |
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 15.66 mg/L | ≤ 10 mg/L | 57% |
| December 2025 | Oxygen, dissolved [DO], instantaneous minimum | 6.9 mg/L | ≥ 7 mg/L | 1% |
| December 2025 | Solids, total suspended, monthly average | 81 mg/L | ≤ 30 mg/L | 170% |
| December 2025 | Solids, total suspended, maximum weekly average | 308 mg/L | ≤ 45 mg/L | 584% |
| January 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 22.25 mg/L | ≤ 10 mg/L | 123% |
| January 2026 | BOD, carbonaceous [5 day, 20 C], maximum weekly average | 30 mg/L | ≤ 15 mg/L | 100% |
| January 2026 | E. coli, 30-day geometric mean | 1871.72 #/100mL | ≤ 130 #/100mL | 1340% |
| January 2026 | E. coli, 7-day geometric mean | 2420 #/100mL | ≤ 240 #/100mL | 908% |
| January 2026 | Nitrogen, ammonia total [as N], daily maximum | 37.8 mg/L | ≤ 15 mg/L | 152% |
| January 2026 | Nitrogen, ammonia total [as N], monthly average | 26.8 mg/L | ≤ 10 mg/L | 168% |
| February 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 89.5 mg/L | ≤ 10 mg/L | 795% |
| February 2026 | BOD, carbonaceous [5 day, 20 C], maximum weekly average | 151 mg/L | ≤ 15 mg/L | 907% |
| February 2026 | E. coli, 30-day geometric mean | 2420 #/100mL | ≤ 130 #/100mL | 1762% |
| February 2026 | E. coli, 7-day geometric mean | 2420 #/100mL | ≤ 240 #/100mL | 908% |
| February 2026 | Nitrogen, ammonia total [as N], daily maximum | 44.6 mg/L | ≤ 15 mg/L | 197% |
| February 2026 | Nitrogen, ammonia total [as N], monthly average | 27.12 mg/L | ≤ 10 mg/L | 171% |
| March 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 12 mg/L | ≤ 10 mg/L | 20% |
| March 2026 | E. coli, 30-day geometric mean | 2420 #/100mL | ≤ 130 #/100mL | 1762% |
| March 2026 | E. coli, 7-day geometric mean | 2420 #/100mL | ≤ 240 #/100mL | 908% |
| March 2026 | Oxygen, dissolved [DO], instantaneous minimum | 3 mg/L | ≥ 7 mg/L | 57% |
| April 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 391.5 mg/L | ≤ 10 mg/L | 3815% |
| April 2026 | BOD, carbonaceous [5 day, 20 C], maximum weekly average | 405 mg/L | ≤ 15 mg/L | 2600% |
| April 2026 | Nitrogen, ammonia total [as N], daily maximum | 16 mg/L | ≤ 15 mg/L | 7% |
| April 2026 | Nitrogen, ammonia total [as N], monthly average | 12.5 mg/L | ≤ 10 mg/L | 25% |
| April 2026 | pH, minimum | 4.82 SU | ≥ 6 SU | — |
| May 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 27.5 mg/L | ≤ 10 mg/L | 175% |
| May 2026 | BOD, carbonaceous [5 day, 20 C], maximum weekly average | 31 mg/L | ≤ 15 mg/L | 107% |
| May 2026 | E. coli, 30-day geometric mean | 2420 #/100mL | ≤ 130 #/100mL | 1762% |
| May 2026 | E. coli, 7-day geometric mean | 2420 #/100mL | ≤ 240 #/100mL | 908% |
| May 2026 | Nitrogen, ammonia total [as N], daily maximum | 32.8 mg/L | ≤ 3 mg/L | 993% |
| May 2026 | Nitrogen, ammonia total [as N], monthly average | 27.75 mg/L | ≤ 2 mg/L | 1288% |
| May 2026 | Oxygen, dissolved [DO], instantaneous minimum | 5.7 mg/L | ≥ 7 mg/L | 19% |
| June 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 34.75 mg/L | ≤ 10 mg/L | 248% |
| June 2026 | BOD, carbonaceous [5 day, 20 C], maximum weekly average | 48.5 mg/L | ≤ 15 mg/L | 223% |
| June 2026 | E. coli, 7-day geometric mean | 2420 #/100mL | ≤ 240 #/100mL | 908% |
| June 2026 | Nitrogen, ammonia total [as N], daily maximum | 23.1 mg/L | ≤ 3 mg/L | 670% |
| June 2026 | Nitrogen, ammonia total [as N], monthly average | 22.15 mg/L | ≤ 2 mg/L | 1008% |
| June 2026 | Solids, total suspended, monthly average | 45 mg/L | ≤ 30 mg/L | 50% |
| June 2026 | Solids, total suspended, maximum weekly average | 55 mg/L | ≤ 45 mg/L | 22% |
| June 2026 | pH, minimum | 4.81 SU | ≥ 6 SU | — |
| July 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 88.5 mg/L | ≤ 10 mg/L | 785% |
| July 2026 | BOD, carbonaceous [5 day, 20 C], maximum weekly average | 176 mg/L | ≤ 15 mg/L | 1073% |
| July 2026 | Nitrogen, ammonia total [as N], daily maximum | 23.3 mg/L | ≤ 3 mg/L | 677% |
| July 2026 | Nitrogen, ammonia total [as N], monthly average | 20.15 mg/L | ≤ 2 mg/L | 908% |
| July 2026 | Solids, total suspended, monthly average | 48 mg/L | ≤ 30 mg/L | 60% |
| July 2026 | Solids, total suspended, maximum weekly average | 58 mg/L | ≤ 45 mg/L | 29% |
| July 2026 | pH, minimum | 3.2 SU | ≥ 6 SU | — |
| August 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 19.5 mg/L | ≤ 10 mg/L | 95% |
| August 2026 | BOD, carbonaceous [5 day, 20 C], maximum weekly average | 25 mg/L | ≤ 15 mg/L | 67% |
| August 2026 | E. coli, 30-day geometric mean | 2420 #/100mL | ≤ 130 #/100mL | 1762% |
| August 2026 | E. coli, 7-day geometric mean | 2420 #/100mL | ≤ 240 #/100mL | 908% |
| August 2026 | Nitrogen, ammonia total [as N], daily maximum | 26.7 mg/L | ≤ 3 mg/L | 790% |
| August 2026 | Nitrogen, ammonia total [as N], monthly average | 20.5 mg/L | ≤ 2 mg/L | 925% |
| August 2026 | Oxygen, dissolved [DO], instantaneous minimum | 3.7 mg/L | ≥ 7 mg/L | 47% |
| August 2026 | Solids, total suspended, monthly average | 31.5 mg/L | ≤ 30 mg/L | 5% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 7 mg/L | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | all year |
| Oil & Grease | monthly average | report only (mg/L) | all year |
| Oil & Grease | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 10 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 15 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Chlorine, total residual | monthly average | ≤ .011 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | all year |
| E. coli | 30-day geometric mean | ≤ 130 #/100mL | all year |
| E. coli | 7-day geometric mean | ≤ 240 #/100mL | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 15 mg/L | all year |
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/KY0074977 · MCP: https://passage-data.com/mcp