Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Winnebago River IA 02-WIN-826

mouth (Floyd Co.) to confluence with Calmus Cr. at Mason City in S34 T97N R20W Cerro Gordo Co.

Assessments
Cycle
IR Category
5
5
5
5
5
Legacy Assessments
Cycle
Overall
Not supporting
Not supporting
Not supporting
Not supporting
Fully
Threatened
Threatened
Threatened
Threatened
Threatened
Details
Type
River
Segment ID
826
Segment Size
20.53 Miles
07080203
Legacy ADBCode
IA 02-WIN-0010_1
Designated Uses
  • Class A1
  • Class BWW1
  • Class HH
Segment Memos 1
Prior to the 2008 Section 305(b) cycle, this river segment was designated only for Class B(WW) aquatic life uses, including fish consumption uses. Due to changes in Iowa’s surface water classification that were approved by U.S. EPA in February 2008, and due to results of a Use Attainability Analysis, this segment is also now designated for Class A1 (primary contact recreation) uses. This segment remains designated for warmwater aquatic life use (now termed Class B(WW1) uses) and for fish consumption uses (now termed Class HH (human health/fish consumption uses).
5/23/2019
20 mi
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Water Monitoring Network
Fish Kills
  • No events on this segment