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City of Runnells

Sewage treatment plant, Runnells, Iowa. NPDES permit IA0063355, in force until Apr 30, 2027. Last 12 months: over a limit 6 times (last April 2026), 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (26 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
33 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
October 2025Oxygen, dissolved [DO], daily minimum4.09≥ 4.5 mg/L9%
March 2026Solids, total suspended, 7-day average50≤ 45 mg/L11%
April 2026Solids, total suspended, 30-day average42.06404≤ 36 lb/d17%
April 2026Solids, total suspended, 30-day average79.75≤ 30 mg/L166%
April 2026Solids, total suspended, 7-day average154≤ 45 mg/L242%
April 2026Solids, total suspended, 7-day average92.85922≤ 54 lb/d72%

Limits in force (70)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 4.5 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≤ 30 mg/Lall year
Solids, total suspended7-day average≤ 45 mg/Lall year
Solids, total suspended30-day average≤ 36 lb/dall year
Solids, total suspended7-day average≤ 54 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≤ 4.6 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 3.8 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 5.1 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 2.8 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 10 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 2.9 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 7.2 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 6.8 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 3.1 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 11.5 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 4.4 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 9.8 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 16.2 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 15 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 15.7 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 16.8 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 15.8 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 18.2 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 16.5 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 15.2 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 14.9 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 16.2 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 15.3 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 3.3 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ 2.7 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 3.6 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ 2 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 7.1 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 2.1 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 5.2 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 4.9 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ 2.2 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 8.2 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 3.2 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 7.1 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 19 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 17.5 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 18.4 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 19.6 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 18.4 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 21.3 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 19.3 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 17.7 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 19.9 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 17.2 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 19.9 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 17.8 lb/dMar
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≤ 30 lb/dall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 48 lb/dall year

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/IA0063355 · MCP: https://passage-data.com/mcp