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Iola, City of

Sewage treatment plant, Iola, Kansas. NPDES permit KS0099414, in force until Feb 29, 2028. Last 12 months: over a limit 2 times (last September 2026), 1 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 31 days after each period: outfall 001 form A monthly (14 values), outfall 002 form A monthly (5 values)
Renewal application due
Sep 2, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 0 of 24 reports late

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

Period endingParameterReportedLimitOver by
August 2026Solids, total suspended, monthly average85.4 mg/L≤ 80 mg/L7%
September 2026Solids, total suspended, monthly average96.2 mg/L≤ 80 mg/L20%

Limits in force (30)

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, 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≤ 7.9 mg/LJan001
Nitrogen, ammonia total [as N]monthly average≤ 7.9 mg/LDec001
Nitrogen, ammonia total [as N]monthly average≤ 3.7 mg/LOct001
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LJul001
Nitrogen, ammonia total [as N]monthly average≤ 5.4 mg/LApr001
Nitrogen, ammonia total [as N]monthly average≤ 5.8 mg/LNov001
Nitrogen, ammonia total [as N]monthly average≤ 3.2 mg/LMay001
Nitrogen, ammonia total [as N]monthly average≤ 1.8 mg/LAug001
Nitrogen, ammonia total [as N]monthly average≤ 7.5 mg/LMar001
Nitrogen, ammonia total [as N]monthly average≤ 7.9 mg/LFeb001
Nitrogen, ammonia total [as N]monthly average≤ 2.4 mg/LSep001
Nitrogen, ammonia total [as N]monthly average≤ 2.4 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
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 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
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year002
Phosphorus, total [as P]monthly averagereport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)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/KS0099414 · MCP: https://passage-data.com/mcp