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Sewage treatment plant, Baldwin City, Kansas. NPDES permit KS0097381, in force until Dec 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | Dec | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 25 mg/L | Sep | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 25 mg/L | Jun | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | Mar | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | Jul | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | Apr | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | Jan | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | Feb | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | May | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 20 mg/L | Aug | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | Oct | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | Nov | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | Dec | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 40 mg/L | Sep | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 40 mg/L | Jun | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | Mar | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 30 mg/L | Jul | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | Apr | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | Jan | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | Feb | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | May | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 30 mg/L | Aug | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | Oct | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | Nov | 001 |
| pH | daily 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 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.5 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.5 mg/L | Nov | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.8 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3 mg/L | Jan | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .8 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .8 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.1 mg/L | Jun | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 5.4 mg/L | May | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.4 mg/L | Feb | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.4 mg/L | Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 7.5 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 6.6 mg/L | Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.4 mg/L | Jan | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3.4 mg/L | Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.6 mg/L | Aug | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.5 mg/L | Jul | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.4 mg/L | Mar | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9.4 mg/L | Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3.6 mg/L | Jun | 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 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| E. coli | monthly geometric mean | ≤ 3843 #/100mL | all year | 001 |
| Nitrogen, Total As N | daily average | report only (mg/L) | all year | 001 |
| Nitrogen, Total As N | EPA's "DPD AVG" | report only (lb/d) | all year | 001 |
| Phosphorus, Total As P | daily average | report only (mg/L) | all year | 001 |
| Phosphorus, Total As P | EPA's "DPD AVG" | report only (lb/d) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 002 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, Kjeldahl, 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 |
Cited limits by parameter: Kansas'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/KS0097381 · MCP: https://passage-data.com/mcp