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Cambrex Charles City, Inc.

Medicinals And Botanicals, major discharger, Charles City, Iowa. NPDES permit IA0003557, in force until May 31, 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 (101 values)
Renewal application due
Dec 3, 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, 0 of 12 reports late

Limits in force (123)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. C30-day average≤ 588.6 lb/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 1182.1 lb/dall 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
Oxygen demand, chem. [high level] [COD]30-day average≤ 1377.8 lb/dall year
Oxygen demand, chem. [high level] [COD]daily maximum≤ 2696.1 lb/dall 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≤ 998.59 lb/dall year
Solids, total suspendeddaily maximum≤ 2009.2 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 average≤ 114 lb/dall year
Nitrogen, total [as N]daily maximum≤ 153 lb/dall 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≤ 47.3 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 37.7 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 32.67 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 47.3 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ 47.3 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ 47.3 lb/dFeb
Nitrogen, ammonia total [as N]30-day average≤ 47.3 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 47.3 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ 47.3 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 39.63 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 36.14 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 47.3 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 135.4 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 135.4 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 135.4 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 135.4 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 135.4 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 135.4 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 135.4 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 135.4 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 135.4 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 135.4 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 135.4 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 135.4 lb/dNov
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
Cyanide, total [as CN]30-day average≤ .07593 mg/Lall year
Cyanide, total [as CN]daily maximum≤ .2858 mg/Lall year
Cyanide, total [as CN]30-day average≤ .1081 lb/dall year
Cyanide, total [as CN]daily maximum≤ .4088 lb/dall year
Methyl cellosolve30-day average≤ 65.35 lb/dall year
Methyl cellosolvedaily maximum≤ 160.96 lb/dall year
1,2-Dichloroethane30-day average≤ .16 lb/dall year
1,2-Dichloroethanedaily maximum≤ .64 lb/dall year
Chloroform30-day average≤ .02 lb/dall year
Chloroformdaily maximum≤ .03 lb/dall year
Toluene30-day average≤ .03 lb/dall year
Toluenedaily maximum≤ .1 lb/dall year
Benzene30-day average≤ .03 lb/dall year
Benzenedaily maximum≤ .08 lb/dall year
Chlorobenzene30-day average≤ .1 lb/dall year
Chlorobenzenedaily maximum≤ .24 lb/dall year
Methylene chloride30-day average≤ .48 lb/dall year
Methylene chloridedaily maximum≤ 1.45 lb/dall year
1,2-Dichlorobenzene30-day average≤ .1 lb/dall year
1,2-Dichlorobenzenedaily maximum≤ .24 lb/dall year
Phenol30-day average≤ .03 lb/dall year
Phenoldaily maximum≤ .08 lb/dall year
Isopropyl acetate30-day average≤ .8 lb/dall year
Isopropyl acetatedaily maximum≤ 2.09 lb/dall year
Methyl formate30-day average≤ .8 lb/dall year
Methyl formatedaily maximum≤ 2.09 lb/dall year
Isobutyraldehyde30-day average≤ .8 lb/dall year
Isobutyraldehydedaily maximum≤ 1.93 lb/dall year
n-Amyl acetate30-day average≤ .8 lb/dall year
n-Amyl acetatedaily maximum≤ 2.09 lb/dall year
Amyl alcohol30-day average≤ 6.6 lb/dall year
Amyl alcoholdaily maximum≤ 16.1 lb/dall year
N-Hexane30-day average≤ .03 lb/dall year
N-Hexanedaily maximum≤ .05 lb/dall year
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
Methyl cyanide [acetonitrile]30-day average≤ 16.42 lb/dall year
Methyl cyanide [acetonitrile]daily maximum≤ 40.24 lb/dall year
Ethanol30-day average≤ 6.6 lb/dall year
Ethanoldaily maximum≤ 16.1 lb/dall year
Isopropanol30-day average≤ 2.58 lb/dall year
Isopropanoldaily maximum≤ 6.28 lb/dall year
Diethylamine30-day average≤ 164.18 lb/dall year
Diethylaminedaily maximum≤ 402.41 lb/dall year
Dimethyl sulfoxide, total30-day average≤ 60.36 lb/dall year
Dimethyl sulfoxide, totaldaily maximum≤ 147.28 lb/dall year
Triethylamine30-day average≤ 164.18 lb/dall year
Triethylaminedaily maximum≤ 402.41 lb/dall year
Isopropyl ether30-day average≤ 4.19 lb/dall year
Isopropyl etherdaily maximum≤ 13.52 lb/dall year
n-Butyl acetate30-day average≤ .8 lb/dall year
n-Butyl acetatedaily maximum≤ 2.09 lb/dall year
Methanol, total30-day average≤ 6.6 lb/dall year
Methanol, totaldaily maximum≤ 16.1 lb/dall year
4-Methyl-2-pentanone30-day average≤ .32 lb/dall year
4-Methyl-2-pentanonedaily maximum≤ .8 lb/dall year
n-Heptane30-day average≤ .03 lb/dall year
n-Heptanedaily maximum≤ .08 lb/dall year
Xylene [mix of m+o+p]30-day average≤ .02 lb/dall year
Xylene [mix of m+o+p]daily maximum≤ .05 lb/dall year
Acetone30-day average≤ .32 lb/dall year
Acetonedaily maximum≤ .8 lb/dall year
Ethyl acetate30-day average≤ .8 lb/dall year
Ethyl acetatedaily maximum≤ 2.09 lb/dall year
Tetrahydrofuran30-day average≤ 4.19 lb/dall year
Tetrahydrofurandaily maximum≤ 13.52 lb/dall year
Report due [yrmoda]daily maximum≤ 1 N=0;Y=1all year

How strict are these limits?

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

Same industry: the 57 Chemicals and Allied Products permits in Iowa.

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Your permit document is the final word. As JSON: /api/v1/permits/IA0003557 · MCP: https://passage-data.com/mcp