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City of Kalona

Sewage treatment plant, Kalona, Iowa. NPDES permit IA0059196, in force until Apr 30, 2027. Last 12 months: over a limit 3 times (last June 2026), 12 required values missing, 3 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (12 values)
Renewal application due
Nov 1, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
6 values over a limit, 26 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
June 2026Nitrogen, ammonia total [as N], 30-day average4.28≤ 2.4 mg/L78%
June 2026Nitrogen, ammonia total [as N], 30-day average66.75002≤ 58 lb/d15%
June 2026Nitrogen, ammonia total [as N], daily maximum4.28≤ 3.4 mg/L26%

Limits in force (56)

ParameterStatisticLimitMonths
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspended30-day average≤ 80 mg/Lall year
Solids, total suspended7-day average≤ 120 mg/Lall year
Nitrogen, ammonia total [as N]30-day average≤ 3.4 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 2.9 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 8.9 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 2.9 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 2.4 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 2.3 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 11.2 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 2.8 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 2.5 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 4.2 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 4.2 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 4.2 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 3.4 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 2.9 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 8.9 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 2.9 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 3.4 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 2.8 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 20.3 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 2.9 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 3.4 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 4.9 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 4.2 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 4.2 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 81.4 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ 68.3 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ 211.4 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 69.7 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ 58 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 53.7 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 266.2 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 65.5 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 58.9 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 98.9 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 98.8 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 100.4 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 81.4 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 68.3 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 211.4 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 69.7 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 81.4 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 67.6 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 482.9 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 69.7 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 81.8 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 117.2 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 98.8 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 100.4 lb/dMar
E. coli30-day averagereport only (#/100mL)all year
E. colidaily maximumreport only (#/100mL)all year
BOD, carbonaceous [5 day, 20 C]30-day average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/Lall year

New limits from Apr 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
E. coli, daily maximum126 #/100mL (Mar–Nov)new201.5 #/100mL (4 values)1.6×
Nitrogen, ammonia total [as N], 30-day average89.9 lb/d (Apr)tighter——
Nitrogen, ammonia total [as N], 30-day average46.5 lb/d (Jul)tighter——
Nitrogen, ammonia total [as N], 30-day average2 mg/L (Jul)tighter——
Nitrogen, ammonia total [as N], 30-day average67.3 lb/d (Oct)tighter——
Nitrogen, ammonia total [as N], 30-day average2.8 mg/L (Oct)tighter——
Nitrogen, ammonia total [as N], 30-day average4.1 mg/L (Dec)tighter——
Nitrogen, ammonia total [as N], 30-day average96.5 lb/d (Dec)tighter——
Nitrogen, ammonia total [as N], 30-day average158.5 lb/d (Jan)tighter——
Nitrogen, ammonia total [as N], 30-day average6.7 mg/L (Jan)tighter——
Nitrogen, ammonia total [as N], 30-day average96.2 lb/d (Mar)tighter——
Nitrogen, ammonia total [as N], 30-day average4 mg/L (Mar)tighter——
Nitrogen, ammonia total [as N], 30-day average2.1 mg/L (Sep)tighter——
Nitrogen, ammonia total [as N], 30-day average48.9 lb/d (Sep)tighter——
Nitrogen, ammonia total [as N], 30-day average2.8 mg/L (Nov)tighter——
Nitrogen, ammonia total [as N], 30-day average67.3 lb/d (Nov)tighter——
Nitrogen, ammonia total [as N], 30-day average182.6 lb/d (Feb)tighter——
Nitrogen, ammonia total [as N], 30-day average7.7 mg/L (Feb)tighter——
Nitrogen, ammonia total [as N], 30-day average1.9 mg/L (Aug)tighter——
Nitrogen, ammonia total [as N], 30-day average44.1 lb/d (Aug)tighter——
Nitrogen, ammonia total [as N], daily maximum3.3 mg/L (Jul)tighter——
Nitrogen, ammonia total [as N], daily maximum79.4 lb/d (Jul)tighter——
Nitrogen, ammonia total [as N], daily maximum67.3 lb/d (Oct)tighter——
Nitrogen, ammonia total [as N], daily maximum2.8 mg/L (Oct)tighter——
Nitrogen, ammonia total [as N], daily maximum96.5 lb/d (Dec)tighter——
Nitrogen, ammonia total [as N], daily maximum4.1 mg/L (Dec)tighter——
Nitrogen, ammonia total [as N], daily maximum478.4 lb/d (Jan)tighter——
Nitrogen, ammonia total [as N], daily maximum20.1 mg/L (Jan)tighter——
Nitrogen, ammonia total [as N], daily maximum4 mg/L (Mar)tighter——
Nitrogen, ammonia total [as N], daily maximum96.2 lb/d (Mar)tighter——
Nitrogen, ammonia total [as N], daily maximum65.6 lb/d (Sep)tighter——
Nitrogen, ammonia total [as N], daily maximum2.8 mg/L (Sep)tighter——
Nitrogen, ammonia total [as N], daily maximum67.3 lb/d (Nov)tighter——
Nitrogen, ammonia total [as N], daily maximum2.8 mg/L (Nov)tighter——
Nitrogen, ammonia total [as N], daily maximum8.6 mg/L (Feb)tighter——
Nitrogen, ammonia total [as N], daily maximum204.4 lb/d (Feb)tighter——
Nitrogen, ammonia total [as N], daily maximum66.3 lb/d (Aug)tighter——

How strict are these limits?

Cited limits by parameter: Iowa's rules and the federal ones.

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Your permit document is the final word. As JSON: /api/v1/permits/IA0059196 · MCP: https://passage-data.com/mcp