Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Big Whisky Creek IA 06-WEM-3079

from confluence with Minnie Brook (T90N R45W Sec7 Plymouth County) to headwaters (T91N R45W Sec12 Plymouth County)

Assessments
Cycle
IR Category
2026 Draft
3
2024
3
2022
3
2020
3
Details
Type
River
Segment ID
3079
Segment Size
8.25 Miles
10230004
HUC12
  • 102300040403
Designated Uses
  • Class A1 P
  • Class BWW1 P
Segment Memos 1
Due to changes in Iowa’s surface water classification approved by U.S. EPA in 2008, this segment has presumptive Class A1 primary contact recreation and Class BWW1 warmwater aquatic life designated uses. According to Iowa Water Quality Standards, all perennial streams and intermittent streams with perennial pools that are not specifically listed in the Iowa surface water classification are designated as Class A1 and Class BWW1 waters.
7/28/2021
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