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City of Baxter

Sewage treatment plant, Baxter, Iowa. NPDES permit IA0023353, in force until Apr 30, 2027. Last 12 months: over a limit 2 times (last May 2026), 16 required values missing, 2 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (14 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
0 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
May 2026Solids, total suspended, 30-day average96≤ 80 mg/L20%
May 2026Solids, total suspended, 30-day average96≤ 80 mg/L20%

Limits in force (58)

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≤ 1 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 2.5 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 1.1 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 2.3 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 1.5 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 1.3 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 3.4 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 1.7 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 1.6 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 4 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 1 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 3.4 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 3.9 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 4.7 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 3.2 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 3.9 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 3.2 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 8.4 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 3.2 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 19.9 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 25.4 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 65.8 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 28.1 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 61.7 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ 40.5 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 34.8 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 90.6 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ 46.2 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ 41.4 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ 105.1 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 26.7 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 90.6 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 70.5 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 103.3 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 70.5 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 70.5 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 125.4 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 85.2 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 103.3 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 85.2 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 70.5 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 223.7 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 85.2 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 529.2 lb/dJan
Chlorine, total residual30-day average≤ .011 mg/Lall year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
Chlorine, total residual30-day average≤ .293 lb/dall year
Chlorine, total residualdaily maximum≤ .505 lb/dall 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

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IA0023353 · MCP: https://passage-data.com/mcp