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City of Eddyville

Sewage treatment plant, Eddyville, Iowa. NPDES permit IA0020770, in force until Mar 31, 2027. Last 12 months: over a limit 6 times (last August 2026), 2 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (34 values)
Renewal application due
Oct 2, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values over a limit, 1 required value missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
April 2026Oxygen, dissolved [DO], daily minimum4.44≥ 5 mg/L11%
May 2026Oxygen, dissolved [DO], daily minimum3.65≥ 5 mg/L27%
May 2026pH, daily minimum3.06≥ 6.5 SU—
June 2026Oxygen, dissolved [DO], daily minimum2.71≥ 5 mg/L46%
July 2026Oxygen, dissolved [DO], daily minimum3.76≥ 5 mg/L25%
August 2026Oxygen, dissolved [DO], daily minimum3.32≥ 5 mg/L34%

Limits in force (78)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 5 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≤ 80 mg/Lall year
Solids, total suspended7-day average≤ 120 mg/Lall year
Solids, total suspended30-day average≤ 418 lb/dall year
Solids, total suspended7-day average≤ 627 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≤ 3.4 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 1.1 mg/LSep
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≤ 1.6 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 1.5 mg/LApr
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≤ 3.4 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 2.3 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 1.3 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 1.7 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 3.9 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LSep
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≤ 2.7 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 4.7 mg/LApr
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≤ 19.9 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 3.2 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 3.2 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 17.8 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ 5.5 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 20.6 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 5.2 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 8.1 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ 8 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 5 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 12.9 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 17.8 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 12.1 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ 6.8 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 9.1 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 20.3 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 13.8 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 43.9 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 16.7 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 13.8 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 24.6 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 13.8 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 20.3 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 103.8 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 13.8 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 16.7 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 16.7 lb/dMay
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
Chlorine, total residual30-day average≤ .0085 mg/Lall year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
Chlorine, total residual30-day average≤ .045 lb/dall year
Chlorine, total residualdaily maximum≤ .099 lb/dall year
E. coligeometric mean≤ 130 #/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≤ 131 lb/dall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 209 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/IA0020770 · MCP: https://passage-data.com/mcp