Iowa DNR
ADBNet

Water Quality Assessments

Impaired Waters List

Iowa River IA 02-IOW-624

from confluence with Cedar R. to Johnson-Washington Co. line

Assessments
Cycle
IR Category
5
Pending
5
5
5
5
Legacy Assessments
2014
2012
2010
2008
2006
2004
2002
Details
Type
River
Segment ID
624
Segment Size
18.02 Miles
07080209
Legacy ADBCode
IA 02-IOW-0020_1
Designated Uses
  • Class A1
  • Class BWW1
  • Class HH
Segment Memos 1 memos
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.
6/17/2020
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Water Monitoring Network
Fish Kills
BioNet Biological Assessment Sites
AQuIA Monitoring Sites