Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Monona-Harrison Ditch IA 06-LSR-1580

mouth (S21 T81N R45W Harrison Co.) to confluence of Wolf Cr. (aka Haitz Ditch) and West Fork Ditch in S12 T84N R45W Monona Co.

Assessments
Cycle
IR Category
2026 Draft
5
2024
3
2022
3
2020
3
2018
3
2016
3
Legacy Assessments
Details
Type
River
Segment ID
1580
Segment Size
22.73 Miles
HUC8
10230004
HUC12
  • 102300040501
  • 102300040503
Legacy ADBCode
IA 06-LSR-0050_0
Designated Uses
  • Class A1 P
  • Class BWW1
  • Class HH
PIndicates a Presumptive Use
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
Map
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Water Monitoring Network
Fish Kills
Recreation and Water Quality
BioNet Biological Assessment Sites
AQuIA Monitoring Sites