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City of Cedar Rapids

Heavy Construction, Cedar Rapids, Iowa. NPDES permit IA0053447, in force until Feb 29, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (12 values)
Renewal application due
Sep 2, 2027 · 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

Limits in force (100)

ParameterStatisticLimitMonths
Nitrogen, ammonia total [as N]30-day average≤ 8.9 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 12.4 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 10.2 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 5.6 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 7.9 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 8.4 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 6.7 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 6.6 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 9.7 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 10.6 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 12.9 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 6.6 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 8.9 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 12.4 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 10.2 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 5.6 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 8.9 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 8.4 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 6.8 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 6.6 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 9.7 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 10.6 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 12.9 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 6.6 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 1850.2 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 2585.6 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ 2123.4 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 1170.4 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 1650.1 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 1743.5 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 1403.6 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 1375 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ 2025.3 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ 2217.3 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 2700.1 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 1379.5 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 1850.2 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 2585.6 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 2123.4 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 1170.4 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 1851.5 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 1743.5 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 1415.3 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 1375 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 2025.3 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 2217.3 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 2700.1 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 1379.5 lb/dNov
Iron, total [as Fe]30-day average≤ 10 mg/Lall year
Iron, total [as Fe]daily maximum≤ 10 mg/Lall year
Iron, total [as Fe]30-day average≤ 2085 lb/dall year
Iron, total [as Fe]daily maximum≤ 2085 lb/dall year
Iron, dissolved [as Fe]30-day average≤ 1.19 mg/LDec
Iron, dissolved [as Fe]30-day average≤ 1.4 mg/LOct
Iron, dissolved [as Fe]30-day average≤ 1.4 mg/LNov
Iron, dissolved [as Fe]30-day average≤ 1.4 mg/LMar
Iron, dissolved [as Fe]30-day average≤ 1.89 mg/LApr
Iron, dissolved [as Fe]30-day average≤ 1.55 mg/LAug
Iron, dissolved [as Fe]30-day average≤ 1.78 mg/LJul
Iron, dissolved [as Fe]30-day average≤ 1.27 mg/LFeb
Iron, dissolved [as Fe]30-day average≤ 1.44 mg/LSep
Iron, dissolved [as Fe]30-day average≤ 2.17 mg/LMay
Iron, dissolved [as Fe]30-day average≤ 1.2 mg/LJan
Iron, dissolved [as Fe]30-day average≤ 2.27 mg/LJun
Iron, dissolved [as Fe]daily maximum≤ 1.19 mg/LDec
Iron, dissolved [as Fe]daily maximum≤ 1.4 mg/LOct
Iron, dissolved [as Fe]daily maximum≤ 1.4 mg/LNov
Iron, dissolved [as Fe]daily maximum≤ 1.4 mg/LMar
Iron, dissolved [as Fe]daily maximum≤ 1.89 mg/LApr
Iron, dissolved [as Fe]daily maximum≤ 1.55 mg/LAug
Iron, dissolved [as Fe]daily maximum≤ 1.78 mg/LJul
Iron, dissolved [as Fe]daily maximum≤ 1.27 mg/LFeb
Iron, dissolved [as Fe]daily maximum≤ 1.44 mg/LSep
Iron, dissolved [as Fe]daily maximum≤ 2.17 mg/LMay
Iron, dissolved [as Fe]daily maximum≤ 1.2 mg/LJan
Iron, dissolved [as Fe]daily maximum≤ 2.27 mg/LJun
Iron, dissolved [as Fe]30-day average≤ 249 lb/dDec
Iron, dissolved [as Fe]30-day average≤ 292 lb/dOct
Iron, dissolved [as Fe]30-day average≤ 293 lb/dNov
Iron, dissolved [as Fe]30-day average≤ 293 lb/dMar
Iron, dissolved [as Fe]30-day average≤ 394 lb/dApr
Iron, dissolved [as Fe]30-day average≤ 324 lb/dAug
Iron, dissolved [as Fe]30-day average≤ 371 lb/dJul
Iron, dissolved [as Fe]30-day average≤ 264 lb/dFeb
Iron, dissolved [as Fe]30-day average≤ 301 lb/dSep
Iron, dissolved [as Fe]30-day average≤ 453 lb/dMay
Iron, dissolved [as Fe]30-day average≤ 251 lb/dJan
Iron, dissolved [as Fe]30-day average≤ 472 lb/dJun
Iron, dissolved [as Fe]daily maximum≤ 249 lb/dDec
Iron, dissolved [as Fe]daily maximum≤ 292 lb/dOct
Iron, dissolved [as Fe]daily maximum≤ 293 lb/dNov
Iron, dissolved [as Fe]daily maximum≤ 293 lb/dMar
Iron, dissolved [as Fe]daily maximum≤ 394 lb/dApr
Iron, dissolved [as Fe]daily maximum≤ 324 lb/dAug
Iron, dissolved [as Fe]daily maximum≤ 371 lb/dJul
Iron, dissolved [as Fe]daily maximum≤ 264 lb/dFeb
Iron, dissolved [as Fe]daily maximum≤ 301 lb/dSep
Iron, dissolved [as Fe]daily maximum≤ 453 lb/dMay
Iron, dissolved [as Fe]daily maximum≤ 251 lb/dJan
Iron, dissolved [as Fe]daily maximum≤ 472 lb/dJun

How strict are these limits?

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

Same industry: the 3 Heavy Construction permits in Iowa.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IA0053447 · MCP: https://passage-data.com/mcp