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Nonresidential Building Operators, Floyds Knobs, Indiana. NPDES permit IN0054101, in force until Jul 31, 2028. Last 12 months: over a limit 5 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | E. coli, colony forming units [CFU], daily maximum | 2420 CFU/100mL | ≤ 235 CFU/100mL | 930% |
| December 2025 | Nitrogen, ammonia total [as N], maximum weekly average | 3.63 lb/d | ≤ 2.4 lb/d | 51% |
| December 2025 | Nitrogen, ammonia total [as N], maximum weekly average | 5.28 mg/L | ≤ 2.9 mg/L | 82% |
| December 2025 | Solids, total suspended, maximum weekly average | 48 mg/L | ≤ 45 mg/L | 7% |
| June 2026 | E. coli, colony forming units [CFU], daily maximum | 240 CFU/100mL | ≤ 235 CFU/100mL | 2% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | daily average minimum | ≥ 6 mg/L | May–Nov |
| Oxygen, dissolved [DO] | daily average minimum | ≥ 5 mg/L | Jan, Feb, Mar, Apr, Dec |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Apr, Dec |
| Solids, total suspended | monthly average | ≤ 22 mg/L | May–Nov |
| Solids, total suspended | monthly average | ≤ 22 mg/L | May–Nov |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Apr, Dec |
| Solids, total suspended | maximum weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Apr, Dec |
| Solids, total suspended | maximum weekly average | ≤ 33 mg/L | May–Nov |
| Solids, total suspended | weekly average | ≤ 33 mg/L | May–Nov |
| Solids, total suspended | weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Apr, Dec |
| Solids, total suspended | monthly average | ≤ 25 lb/d | Jan, Feb, Mar, Apr, Dec |
| Solids, total suspended | monthly average | ≤ 18.4 lb/d | May–Nov |
| Solids, total suspended | monthly average | ≤ 28 lb/d | May–Nov |
| Solids, total suspended | monthly average | ≤ 38 lb/d | Jan, Feb, Mar, Apr, Dec |
| Solids, total suspended | maximum weekly average | ≤ 37.6 lb/d | Jan, Feb, Mar, Apr, Dec |
| Solids, total suspended | maximum weekly average | ≤ 27.5 lb/d | May–Nov |
| Solids, total suspended | weekly average | ≤ 41 lb/d | May–Nov |
| Solids, total suspended | weekly average | ≤ 56 lb/d | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.3 mg/L | May–Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.9 mg/L | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.3 mg/L | May–Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.9 mg/L | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 1.9 mg/L | May–Nov |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 2.9 mg/L | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 1.9 mg/L | May–Nov |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 2.9 mg/L | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.1 lb/d | May–Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.6 lb/d | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.6 lb/d | May–Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.4 lb/d | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 1.6 lb/d | May–Nov |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 2.4 lb/d | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 2.4 lb/d | May–Nov |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 3.6 lb/d | Jan, Feb, Mar, Apr, Dec |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| E. coli, colony forming units [CFU] | monthly geometric mean | ≤ 125 CFU/100mL | Apr–Oct |
| E. coli, colony forming units [CFU] | daily maximum | ≤ 235 CFU/100mL | Apr–Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | Jan, Feb, Mar, Apr, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 18 mg/L | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 18 mg/L | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | Jan, Feb, Mar, Apr, Dec |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 40 mg/L | Jan, Feb, Mar, Apr, Dec |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 27 mg/L | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 27 mg/L | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 40 mg/L | Jan, Feb, Mar, Apr, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 20.8 lb/d | Jan, Feb, Mar, Apr, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 15 lb/d | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 23 lb/d | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 31 lb/d | Jan, Feb, Mar, Apr, Dec |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 33.4 lb/d | Jan, Feb, Mar, Apr, Dec |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 22.5 lb/d | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 34 lb/d | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 50 lb/d | Jan, Feb, Mar, Apr, Dec |
| Flow, total | monthly total | report only (Mgal/mo) | all year |
Cited limits by parameter: Indiana's rules and the federal ones.
Same industry: the 109 Real Estate permits in Indiana.
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