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City of Jewell

Sewage treatment plant, Jewell, Iowa. NPDES permit IA0024422, in force until Jul 31, 2028. Last 12 months: over a limit 3 times (last November 2025), 2 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (11 values)
Renewal application due
Feb 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 12 reports late

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

Period endingParameterReportedLimitOver by
November 2025E. coli, geometric mean626≤ 229 #/100mL173%
November 2025Nitrogen, ammonia total [as N], 30-day average4.0663≤ 2.5 mg/L63%
November 2025Nitrogen, ammonia total [as N], daily maximum4.0663≤ 2.7 mg/L51%

Limits in force (55)

ParameterStatisticLimitMonths
pHdaily minimum≥ 6.5 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
Nitrogen, ammonia total [as N]30-day average≤ 1.1 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 3.5 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 2.5 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 1 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 2.6 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 3.5 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 1.6 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 1 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 4.1 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 2.1 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 1.3 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 1.8 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 3.9 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LNov
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/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 3.2 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 8.4 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 4.7 mg/LApr
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≤ 16 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 51.5 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ 35.8 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ 14.4 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 38.1 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 51.5 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 24 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ 15.2 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 59.8 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 30.6 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 19.6 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 26.8 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 38.7 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 56.7 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 38.7 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 38.7 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 56.7 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 290.3 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 38.7 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 46.7 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 122.7 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 68.8 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 46.7 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 46.7 lb/dMay
E. coligeometric mean≤ 229 #/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

New limits from Jul 1, 2028

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Chloride [as Cl], 30-day average5720 lb/dnew——
Chloride [as Cl], 30-day average392 mg/Lnew——
Chloride [as Cl], daily maximum9186 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/IA0024422 · MCP: https://passage-data.com/mcp