Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Hewitt Creek IA 01-NMQ-109

mouth (S29/30 T89N R2W Dubuque Co.) to confluence with Hickory Cr. in S21 T89N R2W Dubuque Co.

Assessments
Cycle
IR Category
2024
3
Pending
2022
4
2020
4
2018
3
2016
3
Legacy Assessments
Cycle
Overall
2014
Not assessed
2012
Not assessed
2010
Not assessed
2008
Not assessed
2006
Not assessed
2004
Not assessed
Details
Type
River
Segment ID
109
Segment Size
3.76 Miles
HUC8
07060006
Legacy ADBCode
IA 01-NMQ-0150_0
Designated Uses
  • Class A1 P
  • Class BWW2
PIndicates a Presumptive Use
Segment Memos 1
Prior to the 2008 IR cycle, this segment had only the Class B(LR) warmwater aquatic life 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 the warmwater aquatic life designated use is now Class BWW2.
6/8/2020
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Water Monitoring Network
Fish Kills
BioNet Biological Assessment Sites
AQuIA Monitoring Sites