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Maple Hill Wastewater Plant

Sewage treatment plant, Maple Hill, Kansas. NPDES permit KS0046426, in force until Dec 31, 2030. Last 12 months: over a limit 5 times (last June 2026), 6 required values missing, 2 of 5 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: outfall 001 form A quarterly, outfall 002 form A quarterly
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 4 reports late

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

Period endingParameterReportedLimitOver by
December 2025Nitrogen, ammonia total [as N], monthly average7 mg/L≤ 6.9 mg/L1%
March 2026BOD, 5-day, 20 deg. C, monthly average41 mg/L≤ 30 mg/L37%
March 2026BOD, 5-day, 20 deg. C, monthly average41 mg/L≤ 30 mg/L37%
June 2026BOD, 5-day, 20 deg. C, monthly average50.1 mg/L≤ 30 mg/L67%
June 2026BOD, 5-day, 20 deg. C, maximum weekly average50.1 mg/L≤ 45 mg/L11%

Limits in force (9)

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≤ 6.2 mg/Lall year001
E. colimonthly geometric meanreport only (#/100mL)all 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/KS0046426 · MCP: https://passage-data.com/mcp