Iowa DNR

Water Quality Assessments

Impaired Waters List

Cedar River IA 02-CED-449

mouth (S20 T75N R4W Louisa Co.) to confluence with Sugar Cr. in S17 T78N R2W Muscatine Co.

Cycle Status Overall Category
2020 Final 5
2018 Final 5
2016 Final 5
Legacy Assessments
2014 Final
2012 Final
2010 Final
2008 Final
2006 Final
2004 Final
2002 Final
2000 Final
1998 Final
Segment ID
Segment Size
29.76 Miles
Legacy ADBCode
IA 02-CED-0010_0
Prior to the 2008 IR cycle, this segment had Class A primary contact recreation and Class B(WW) warmwater aquatic life (including fish consumption) designated uses. Due to changes in Iowa’s surface water classification approved by U.S. EPA in 2008, this segment now has Class A1 primary contact recreation, Class BWW1 warmwater aquatic life, and Class HH (human health/fish consumption) designated uses.
Use Designations
  • Class A1
    Recreation : Primary contact
  • Class BWW1
    Aquatic Life : Warm Water Type 1
  • Class HH
    Human Health
Map Map Legend
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Water Monitoring Network
Fish Kills
BioNet Monitoring Sites
AQuIA Monitoring Sites