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City of Edgewood

Sewage treatment plant, Edgewood, Iowa. NPDES permit IA0024490, in force until Dec 31, 2029. Last 12 months: over a limit 6 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (30 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
9 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
January 2026Nitrogen, ammonia total [as N], 30-day average13.62555≤ 10.7 lb/d27%
January 2026Nitrogen, ammonia total [as N], 30-day average9.4175≤ 5.1 mg/L85%
July 2026Nitrogen, ammonia total [as N], 30-day average3.272≤ 1.5 mg/L118%
July 2026Nitrogen, ammonia total [as N], 30-day average6.470055≤ 3.2 lb/d102%
August 2026Nitrogen, ammonia total [as N], 30-day average4.05≤ 1.4 mg/L189%
August 2026Nitrogen, ammonia total [as N], 30-day average7.764748≤ 3 lb/d159%

Limits in force (74)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 4.9 mg/Lall year
BOD, 5-day, 20 deg. C30-day averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
BOD, 5-day, 20 deg. C30-day averagereport only (lb/d)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)all year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
pH30-day averagereport only (SU)all year
pHdaily maximumreport only (SU)all year
Solids, total suspended30-day average≤ 30 mg/Lall year
Solids, total suspended7-day average≤ 45 mg/Lall year
Solids, total suspended30-day average≤ 79 lb/dall year
Solids, total suspended7-day average≤ 118 lb/dall year
Solids, total suspended30-day averagereport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspended30-day averagereport only (lb/d)all year
Solids, total suspendeddaily maximumreport only (lb/d)all year
Nitrogen, ammonia total [as N]30-day average≤ 5 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 2.5 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 5.9 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 1.4 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 2.3 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 1.8 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 1.6 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 3.5 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 1.5 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 5.1 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 3.7 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 2.3 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 8.6 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 8.7 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 8.6 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 18.7 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 8.6 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 8.6 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 10.7 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ 5.5 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ 12.4 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 3 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 4.8 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 4 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 3.3 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 7.3 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ 3.2 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 10.7 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 7.8 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 4.9 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 22.2 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 22.2 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 22.3 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 22.1 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 22.2 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 22.2 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 22.2 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 22.2 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 22.2 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 48.5 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 22.2 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 22.2 lb/dOct
Nitrogen, Kjeldahl, total [as N]30-day averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]30-day averagereport only (lb/d)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (lb/d)all year
E. coligeometric mean≤ 274 #/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≤ 65 lb/dall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 105 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/IA0024490 · MCP: https://passage-data.com/mcp