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West/High Amana Sanitary District

Sewage treatment plant, Amana, Iowa. NPDES permit IA0077372, in force until Dec 31, 2026. Last 12 months: over a limit 3 times (last September 2026), 17 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (16 values)
Renewal application due
Jul 4, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 13 required values missing, 5 of 12 reports late

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

Period endingParameterReportedLimitOver by
January 2026pH, daily maximum9.6≤ 9 SU—
August 2026Oxygen, dissolved [DO], daily minimum.58≥ 1 mg/L42%
September 2026Oxygen, dissolved [DO], daily minimum.31≥ 1 mg/L69%

Limits in force (59)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 1 mg/Lall year
pHdaily minimum≥ 6 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
Solids, total suspended30-day average≤ 99 lb/dall year
Solids, total suspended7-day average≤ 149 lb/dall year
Nitrogen, ammonia total [as N]30-day average≤ 10.1 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 6.9 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 6.9 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 8.3 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 6.7 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 21.1 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 6.9 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 10.1 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 17 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 6.9 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 9.2 mg/LApr
Nitrogen, ammonia total [as N]geometric mean≤ 8.3 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 8.3 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 8.3 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 21.1 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 10.1 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 11.3 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 8.3 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 10.5 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ 5.2 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 5.7 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 5.8 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 5.1 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 21 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 8.5 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ 12.2 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 17.3 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 8.5 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ 7.9 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 12.5 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 9.7 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 10.3 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 21 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 12.2 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 17.3 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 10.6 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 7 lb/dMay
E. coligeometric mean≤ 351 #/100mLMar–Nov
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
BOD, carbonaceous [5 day, 20 C]30-day average≤ 31 lb/dall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 50 lb/dall 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/IA0077372 · MCP: https://passage-data.com/mcp