Iowa DNR
ADBNet

Water Quality Assessments

Impaired Waters List

Old Mans Creek IA 02-IOW-686

from confluence with unnamed tributary (N line S1 T78N R7W Johnson Co.) to confluence with unnamed tributary in NE 1/4 S4 T78N R8W Johnson Co.

Assessments
Cycle
IR Category
4
Pending
4
5
5
5
Legacy Assessments
2014
2012
2010
2008
2006
2004
2002
2000
1998
1996
Details
Type
River
Segment ID
686
Segment Size
12.41 Miles
07080209
Legacy ADBCode
IA 02-IOW-0150_2
Designated Uses
  • Class A1 P
  • Class BWW2
Segment Memos 1 memos
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.
6/9/2020
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