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Desoto, City of

Sewage treatment plant, De Soto, Kansas. NPDES permit KS0098167, in force until Dec 31, 2026. Last 12 months: over a limit once (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (25 values), outfall 001 form B quarterly (1 value), outfall 002 form A monthly (4 values), outfall 001 form W yearly
Renewal application due
Jul 4, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 2 of 29 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
September 2026Phosphorus, Total As P, EPA's "DPD AVG"11.31399 lb/d≤ 10.86 lb/d4%

Limits in force (92)

ParameterStatisticLimitMonthsOutfall
Conductivitymonthly averagereport only (umho/cm)all year001
Oxygen, dissolved [DO]minimum weekly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/Lall year001
pHdaily minimum≥ 6 SUall year001
pHmonthly averagereport only (SU)all year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 45 mg/Lall year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (lb/d)all year001
Nitrogen, ammonia total [as N]monthly average≤ 7.4 mg/LMay001
Nitrogen, ammonia total [as N]monthly average≤ 16.6 mg/LDec001
Nitrogen, ammonia total [as N]monthly average≤ 16.4 mg/LMar001
Nitrogen, ammonia total [as N]monthly average≤ 4.3 mg/LAug001
Nitrogen, ammonia total [as N]monthly average≤ 5.4 mg/LSep001
Nitrogen, ammonia total [as N]monthly average≤ 14.3 mg/LNov001
Nitrogen, ammonia total [as N]monthly average≤ 16.6 mg/LJan001
Nitrogen, ammonia total [as N]monthly average≤ 9.2 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ 3.7 mg/LJul001
Nitrogen, ammonia total [as N]monthly average≤ 16.6 mg/LFeb001
Nitrogen, ammonia total [as N]monthly average≤ 11.7 mg/LApr001
Nitrogen, ammonia total [as N]monthly average≤ 5.3 mg/LJun001
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 mg/LMay001
Nitrogen, ammonia total [as N]daily maximum≤ 16.6 mg/LDec001
Nitrogen, ammonia total [as N]daily maximum≤ 16.6 mg/LMar001
Nitrogen, ammonia total [as N]daily maximum≤ 4.8 mg/LAug001
Nitrogen, ammonia total [as N]daily maximum≤ 6 mg/LSep001
Nitrogen, ammonia total [as N]daily maximum≤ 16.6 mg/LNov001
Nitrogen, ammonia total [as N]daily maximum≤ 16.6 mg/LJan001
Nitrogen, ammonia total [as N]daily maximum≤ 10.8 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 4.1 mg/LJul001
Nitrogen, ammonia total [as N]daily maximum≤ 16.6 mg/LFeb001
Nitrogen, ammonia total [as N]daily maximum≤ 14.2 mg/LApr001
Nitrogen, ammonia total [as N]daily maximum≤ 5.9 mg/LJun001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (lb/d)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year001
Arsenic, total recoverablemonthly averagereport only (ug/L)all year001
Selenium, total recoverablemonthly averagereport only (ug/L)all year001
Thallium, total recoverablemonthly averagereport only (ug/L)all year001
Beryllium, total recoverable [as Be]monthly averagereport only (ug/L)all year001
Nickel, total recoverablemonthly averagereport only (ug/L)all year001
Silver total recoverablemonthly averagereport only (ug/L)all year001
Zinc, total recoverablemonthly averagereport only (ug/L)all year001
Cadmium, total recoverablemonthly averagereport only (ug/L)all year001
Lead, total recoverablemonthly averagereport only (ug/L)all year001
Chromium, total recoverablemonthly averagereport only (ug/L)all year001
Copper, total recoverablemonthly averagereport only (ug/L)all year001
Antimony, total recoverablemonthly averagereport only (ug/L)all year001
Priority Pollutantsmonthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
E. colimonthly geometric mean≤ 2000 #/100mLDec001
E. colimonthly geometric mean≤ 2000 #/100mLFeb001
E. colimonthly geometric mean≤ 200 #/100mLJul001
E. colimonthly geometric mean≤ 200 #/100mLOct001
E. colimonthly geometric mean≤ 2000 #/100mLMar001
E. colimonthly geometric mean≤ 200 #/100mLSep001
E. colimonthly geometric mean≤ 200 #/100mLJun001
E. colimonthly geometric mean≤ 200 #/100mLMay001
E. colimonthly geometric mean≤ 2000 #/100mLNov001
E. colimonthly geometric mean≤ 200 #/100mLApr001
E. colimonthly geometric mean≤ 200 #/100mLAug001
E. colimonthly geometric mean≤ 2000 #/100mLJan001
E. coliweekly geometric meanreport only (#/100mL)Dec001
E. coliweekly geometric meanreport only (#/100mL)Feb001
E. coliweekly geometric mean≤ 4348 #/100mLJul001
E. coliweekly geometric mean≤ 4348 #/100mLOct001
E. coliweekly geometric meanreport only (#/100mL)Mar001
E. coliweekly geometric mean≤ 4348 #/100mLSep001
E. coliweekly geometric mean≤ 4348 #/100mLJun001
E. coliweekly geometric mean≤ 4348 #/100mLMay001
E. coliweekly geometric meanreport only (#/100mL)Nov001
E. coliweekly geometric mean≤ 4348 #/100mLApr001
E. coliweekly geometric mean≤ 4348 #/100mLAug001
E. coliweekly geometric meanreport only (#/100mL)Jan001
Nitrogen, Total As Ndaily averagereport only (mg/L)all year001
Nitrogen, Total As NEPA's "DPD AVG"report only (lb/d)all year001
Phosphorus, Total As Pdaily averagereport only (mg/L)all year001
Phosphorus, Total As PEPA's "DPD AVG"≤ 10.86 lb/dall year001
Nitrite + Nitrate total [as N]daily averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]EPA's "DPD AVG"report only (lb/d)all year001
Mercury, total [as Hg]monthly averagereport only (ug/L)all year001
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily minimum≥ 16 %all year001
IC25 Static Renewal 7 Day Chronic Pimephalesdaily minimum≥ 16 %all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year002
Solids, total suspendedmonthly averagereport only (mg/L)all year002
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year002
Phosphorus, total [as P]monthly averagereport only (mg/L)all year002

How strict are these limits?

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/KS0098167 · MCP: https://passage-data.com/mcp