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Wellsville, City of

Sewage treatment plant, Wellsville, Kansas. NPDES permit KS0097110, in force until Aug 31, 2029. Last 12 months: over a limit 11 times (last April 2026), 4 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (21 values), outfall 002 form A monthly (4 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 34 required values missing, 11 of 24 reports late

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

Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, monthly average47.9 mg/L≤ 30 mg/L60%
October 2025BOD, 5-day, 20 deg. C, maximum weekly average47.9 mg/L≤ 45 mg/L6%
October 2025E. coli, monthly geometric mean19863 #/100mL≤ 3843 #/100mL417%
October 2025Nitrogen, ammonia total [as N], daily maximum29 mg/L≤ 7.5 mg/L287%
October 2025Nitrogen, ammonia total [as N], monthly average29 mg/L≤ 3.2 mg/L806%
December 2025Nitrogen, ammonia total [as N], monthly average7.4 mg/L≤ 5.3 mg/L40%
April 2026BOD, 5-day, 20 deg. C, monthly average36.3 mg/L≤ 30 mg/L21%
April 2026Nitrogen, ammonia total [as N], daily maximum26.3 mg/L≤ 8.5 mg/L209%
April 2026Nitrogen, ammonia total [as N], monthly average26.3 mg/L≤ 3.5 mg/L651%
April 2026Solids, total suspended, monthly average153 mg/L≤ 30 mg/L410%
April 2026Solids, total suspended, maximum weekly average153 mg/L≤ 45 mg/L240%

Limits in force (47)

ParameterStatisticLimitMonthsOutfall
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
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≤ 1.9 mg/LJun001
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LJul001
Nitrogen, ammonia total [as N]monthly average≤ 5.3 mg/LJan001
Nitrogen, ammonia total [as N]monthly average≤ 3.5 mg/LApr001
Nitrogen, ammonia total [as N]monthly average≤ 2.7 mg/LMay001
Nitrogen, ammonia total [as N]monthly average≤ 3.2 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 mg/LAug001
Nitrogen, ammonia total [as N]monthly average≤ 5.3 mg/LDec001
Nitrogen, ammonia total [as N]monthly average≤ 4.4 mg/LNov001
Nitrogen, ammonia total [as N]monthly average≤ 5.3 mg/LFeb001
Nitrogen, ammonia total [as N]monthly average≤ 5.3 mg/LMar001
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LSep001
Nitrogen, ammonia total [as N]daily maximum≤ 4.1 mg/LJun001
Nitrogen, ammonia total [as N]daily maximum≤ 2.8 mg/LJul001
Nitrogen, ammonia total [as N]daily maximum≤ 10.6 mg/LJan001
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 mg/LApr001
Nitrogen, ammonia total [as N]daily maximum≤ 6.1 mg/LMay001
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LOct001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LAug001
Nitrogen, ammonia total [as N]daily maximum≤ 10.6 mg/LDec001
Nitrogen, ammonia total [as N]daily maximum≤ 10.6 mg/LNov001
Nitrogen, ammonia total [as N]daily maximum≤ 10.6 mg/LFeb001
Nitrogen, ammonia total [as N]daily maximum≤ 10.6 mg/LMar001
Nitrogen, ammonia total [as N]daily maximum≤ 3.9 mg/LSep001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
E. colimonthly geometric mean≤ 3843 #/100mLall year001
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"report only (lb/d)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.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/KS0097110 · MCP: https://passage-data.com/mcp