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Allen, City of

Sewage treatment plant, Allen, Kansas. NPDES permit KS0080055, in force until Sep 30, 2029. Last 12 months: over a limit 2 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: outfall 001 form A quarterly (7 values), outfall 002 form A quarterly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 0 of 8 reports late

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

Period endingParameterReportedLimitOver by
March 2026BOD, 5-day, 20 deg. C, monthly average31 mg/L≤ 30 mg/L3%
June 2026E. coli, monthly geometric mean24196 #/100mL≤ 3843 #/100mL530%

Limits in force (12)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 45 mg/Lall year001
pHmonthly averagereport only (SU)all year001
Solids, total suspendedmonthly average≤ 80 mg/Lall year001
Solids, total suspendedmaximum weekly average≤ 120 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 16 mg/LApr–Jun001
Nitrogen, ammonia total [as N]monthly average≤ 7.5 mg/LJul–Sep001
Nitrogen, ammonia total [as N]monthly average≤ 19.9 mg/LJan–Mar001
Nitrogen, ammonia total [as N]monthly average≤ 19.9 mg/LOct–Dec001
E. colimonthly geometric mean≤ 3843 #/100mLall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year002
Solids, total suspendedmonthly 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/KS0080055 · MCP: https://passage-data.com/mcp