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City of Farnhamville

Sewage treatment plant, Farnhamville, Iowa. NPDES permit IA0028967, in force until Oct 31, 2029. Last 12 months: over a limit 3 times (last January 2026), 4 required values missing, 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (28 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
15 values over a limit, 50 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
January 2026BOD, carbonaceous [5 day, 20 C], 30-day average27.75≤ 25 mg/L11%
January 2026BOD, carbonaceous [5 day, 20 C], 7-day average45.15956≤ 33 lb/d37%
January 2026BOD, carbonaceous [5 day, 20 C], 7-day average88≤ 40 mg/L120%

Limits in force (72)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 1 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 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≤ 66 lb/dall year
Solids, total suspended7-day average≤ 99 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≤ 1.1 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 1.6 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 1.8 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 1 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 1.6 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 1.1 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 2.5 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 4 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 2.4 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 1.4 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 3.5 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 3.5 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 8.6 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 8.7 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 7.2 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 8.9 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 7.1 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 8.5 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 5.9 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 7.4 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 7 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 8.6 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ .9 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 1.3 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 1.5 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ .8 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 1.3 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ .9 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 2.1 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 3.3 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 1.9 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ 1.1 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 2.8 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 2.8 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 6 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 7 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 7.1 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 6 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 5.9 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 7.2 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 5.8 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 7 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 4.8 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 5.9 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 5.8 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 7 lb/dMar
Nitrogen, Kjeldahl, total [as N]30-day average≤ 22 lb/dall year
Nitrogen, Kjeldahl, total [as N]daily maximum≤ 36 lb/dall year
E. coligeometric mean≤ 126 #/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≤ 20 lb/dall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 33 lb/dall year

New limits from Oct 1, 2029

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Chloride [as Cl], 30-day average321 lb/dnew——
Chloride [as Cl], 30-day average389 mg/Lnew——
Chloride [as Cl], daily maximum519 lb/dnew——
Chloride [as Cl], daily maximum629 mg/Lnew——

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IA0028967 · MCP: https://passage-data.com/mcp