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Strother Field Commission

Sewage treatment plant, Winfield, Kansas. NPDES permit KS0118427, in force until Feb 28, 2031. Last 12 months: over a limit 15 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: form A monthly (17 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
19 values over a limit, 2 required values missing, 0 of 12 reports late

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

All 15 values over a limit
Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], daily maximum16.9 mg/L≤ 6.6 mg/L156%
October 2025Nitrogen, ammonia total [as N], monthly average16.9 mg/L≤ 3.5 mg/L383%
November 2025Nitrogen, ammonia total [as N], monthly average8.9 mg/L≤ 5.4 mg/L65%
December 2025Nitrogen, ammonia total [as N], monthly average9.2 mg/L≤ 7.1 mg/L30%
January 2026Nitrogen, ammonia total [as N], monthly average9.1 mg/L≤ 7.1 mg/L28%
February 2026Nitrogen, ammonia total [as N], monthly average8 mg/L≤ 7.1 mg/L13%
March 2026Nitrogen, ammonia total [as N], monthly average7.2 mg/L≤ 4.4 mg/L64%
April 2026Nitrogen, ammonia total [as N], monthly average3.5 mg/L≤ 2.7 mg/L30%
May 2026E. coli, monthly geometric mean8664 #/100mL≤ 3843 #/100mL125%
May 2026Nitrogen, ammonia total [as N], monthly average4.7 mg/L≤ 2.7 mg/L74%
June 2026Nitrogen, ammonia total [as N], monthly average3.15 mg/L≤ 1.9 mg/L66%
July 2026Nitrogen, ammonia total [as N], daily maximum4.9 mg/L≤ 2.3 mg/L113%
July 2026Nitrogen, ammonia total [as N], monthly average4.9 mg/L≤ 1.3 mg/L277%
August 2026Nitrogen, ammonia total [as N], daily maximum7.92 mg/L≤ 2.7 mg/L193%
August 2026Nitrogen, ammonia total [as N], monthly average7.92 mg/L≤ 1.6 mg/L395%

Limits in force (39)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 7.1 mg/LJan
Nitrogen, ammonia total [as N]monthly average≤ 1.6 mg/LAug
Nitrogen, ammonia total [as N]monthly average≤ 2.7 mg/LApr
Nitrogen, ammonia total [as N]monthly average≤ 2.7 mg/LMay
Nitrogen, ammonia total [as N]monthly average≤ 1.9 mg/LJun
Nitrogen, ammonia total [as N]monthly average≤ 7.1 mg/LDec
Nitrogen, ammonia total [as N]monthly average≤ 7 mg/LFeb
Nitrogen, ammonia total [as N]monthly average≤ 4.4 mg/LMar
Nitrogen, ammonia total [as N]monthly average≤ 2.1 mg/LSep
Nitrogen, ammonia total [as N]monthly average≤ 1.3 mg/LJul
Nitrogen, ammonia total [as N]monthly average≤ 3.8 mg/LOct
Nitrogen, ammonia total [as N]monthly average≤ 5.3 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 11.6 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 4.9 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 4.8 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 3.3 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 11.6 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 11.6 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 8.6 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 3.8 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 2.3 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 7.1 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 10.6 mg/LNov
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
E. colimonthly geometric mean≤ 3843 #/100mLall year

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/KS0118427 · MCP: https://passage-data.com/mcp