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Sewage treatment plant, major discharger, Atchison, Kansas. NPDES permit KS0039128, in force until Dec 31, 2028. Last 12 months: no values over a limit, 1 of 107 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Conductivity | monthly average | report only (umho/cm) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 45 mg/L | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | monthly average | report only (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 | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 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 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 001 |
| Arsenic, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Selenium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Thallium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Beryllium, total recoverable [as Be] | monthly average | report only (ug/L) | all year | 001 |
| Nickel, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Silver total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Zinc, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Cadmium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Lead, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Chromium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Copper, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Antimony, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Priority Pollutants | monthly average | report only (ug/L) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Aug | 001 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Apr | 001 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | May | 001 |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Nov | 001 |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Feb | 001 |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Jan | 001 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Jul | 001 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Jun | 001 |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Mar | 001 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Oct | 001 |
| E. coli | monthly geometric mean | ≤ 262 #/100mL | Sep | 001 |
| E. coli | monthly geometric mean | ≤ 2358 #/100mL | Dec | 001 |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Aug | 001 |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Apr | 001 |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | May | 001 |
| E. coli | weekly geometric mean | report only (#/100mL) | Nov | 001 |
| E. coli | weekly geometric mean | report only (#/100mL) | Feb | 001 |
| E. coli | weekly geometric mean | report only (#/100mL) | Jan | 001 |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Jul | 001 |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Jun | 001 |
| E. coli | weekly geometric mean | report only (#/100mL) | Mar | 001 |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Oct | 001 |
| E. coli | weekly geometric mean | ≤ 4348 #/100mL | Sep | 001 |
| E. coli | weekly geometric mean | report only (#/100mL) | Dec | 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 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | all year | 001 |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | daily minimum | ≥ 51 % | all year | 001 |
| LC50 Static 48Hr Acute Pimephales promelas | daily minimum | ≥ 51 % | 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 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Duration of discharge | monthly average | report only (hr) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| Duration of discharge | monthly average | report only (hr) | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 006 |
| Duration of discharge | monthly average | report only (hr) | all year | 006 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 007 |
| Duration of discharge | monthly average | report only (hr) | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 008 |
| Duration of discharge | monthly average | report only (hr) | all year | 008 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 009 |
| Duration of discharge | monthly average | report only (hr) | all year | 009 |
| Rainfall | monthly average | report only (in) | all year | 010 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 011 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 011 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 011 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 011 |
| E. coli | monthly geometric mean | report only (#/100mL) | all year | 011 |
| Duration of discharge | monthly average | report only (hr) | all year | 011 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 014 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 014 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 014 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 014 |
| E. coli | monthly geometric mean | report only (#/100mL) | all year | 014 |
| Duration of discharge | monthly average | report only (hr) | all year | 014 |
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/KS0039128 · MCP: https://passage-data.com/mcp