Iowa DNR
ADBNet

Water Quality Assessments

Impaired Waters List

Little Sioux River IA 06-LSR-1565

from confluence with Maple R. (S17 T83N R44W Monona Co.) to confluence with Big Cr. in Anthon in S4 T87N R43W Woodbury Co.

Assessments
Cycle
IR Category
5
Pending
5
5
5
5
Legacy Assessments
2014
2012
2010
2008
2006
2004
2002
2000
1998
1996
1994
1992
Details
Type
River
Segment ID
1565
Segment Size
30.53 Miles
10230003
Legacy ADBCode
IA 06-LSR-0020_1
Designated Uses
  • Class A1
  • Class BWW1
  • Class HH
Segment Memos 1 memos
Prior to the 2008 Section 305(b) cycle, this river segment was designated only for Class B(WW1) 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 the results of an 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).
7/30/2019
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Water Monitoring Network
Fish Kills
BioNet Biological Assessment Sites
AQuIA Monitoring Sites