Iowa DNR
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
5
5
5
5
Legacy Assessments
Cycle
Overall
Not supporting
Not supporting
Not supporting
Not supporting
Partial
Partial
Partial
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
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
Map Map Legend
Segments
Non-River Segments
River segments
Selected river segment
10 mi
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Water Monitoring Network
Fish Kills
  • No events on this segment
  • BioNet Biological Assessment Sites
    USGS NWIS