Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Shell Rock River IA 02-SHL-783

from south corporate limit of Shell Rock (S12 T91N R15W Butler Co.) to confluence with Flood Cr. in S27 T93N R16W Butler Co.

Assessments
Cycle
IR Category
5
Pending
5
5
5
5
Legacy Assessments
Cycle
Overall
Not supporting
Not supporting
Fully
Not supporting
Fully
Fully
Fully
Not assessed
Threatened
Threatened
Threatened
Fully
Details
Type
River
Segment ID
783
Segment Size
18.1 Miles
07080202
Legacy ADBCode
IA 02-SHL-0010_2
Designated Uses
  • Class A1 P
  • Class BWW1
  • Class HH
Segment Memos 1
Prior to the 2008 IR cycle, this segment had only the Class B(WW) warmwater aquatic life (including fish consumption) designated use. Due to changes in Iowa’s surface water classification approved by U.S. EPA in 2008, this segment now has the presumptive Class A1 primary contact recreation designated use and continues to have 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