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City of Clarinda

Sewage treatment plant, major discharger, Clarinda, Iowa. NPDES permit IA0035190, in force until Mar 31, 2027. Last 12 months: no values over a limit, 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (44 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
14 values over a limit, 0 required values missing, 1 of 12 reports late

Limits in force (88)

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≥ 6.2 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≤ 400 lb/dall year
Solids, total suspended7-day average≤ 600 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, total [as N]30-day averagereport only (mg/L)all year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, total [as N]30-day averagereport only (lb/d)all year
Nitrogen, total [as N]daily maximumreport only (lb/d)all year
Nitrogen, ammonia total [as N]30-day average≤ 9.5 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 4.3 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 6.3 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 3.9 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 13.6 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 14 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 6.2 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 5.3 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 7.1 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 15.9 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 10.1 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 4.1 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 15.9 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 17.8 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 17.7 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 16.2 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 16.7 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 17 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 15.8 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 16.6 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 15.9 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 17.2 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 19.1 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 132.6 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ 59.9 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 88.6 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ 54 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 190.7 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ 195.1 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 86.4 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 74.5 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 98.7 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ 213.4 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 141.1 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 57 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 212.9 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 238.7 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 227.4 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 236.7 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 217.1 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 224.4 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 227.4 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 211.4 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 222 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 213.4 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 231.1 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 256.2 lb/dJul
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
Phosphorus, total [as P]30-day averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]30-day averagereport only (lb/d)all year
Phosphorus, total [as P]daily maximumreport only (lb/d)all year
Copper, total [as Cu]30-day average≤ .03201 mg/Lall year
Copper, total [as Cu]daily maximum≤ .03201 mg/Lall year
Copper, total [as Cu]30-day average≤ .3952 lb/dall year
Copper, total [as Cu]daily maximum≤ .3952 lb/dall year
E. coligeometric mean≤ 630 #/100mLMar–Nov
Toxicity [acute], Ceriodaphnia dubiadaily maximum≤ 1 N=0;Y=1all year
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximum≤ 1 N=0;Y=1all year
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≤ 334 lb/dall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 534 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/IA0035190 · MCP: https://passage-data.com/mcp