Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Maple River IA 06-LSR-1581

mouth (S17 T83N R44W Monona Co.) to confluence with unnamed tributary approximately 1 mile east of Danbury in SW 1/4 NE 1/4 S26 T86N R42W Woodbury Co.

Assessments
Cycle
IR Category
2024
5
2022
5
2020
5
2018
5
2016
5
Legacy Assessments
Cycle
Overall
2014
Not supporting
2012
Not supporting
2010
Not supporting
2008
Not supporting
2006
Partial
2004
Threatened
2002
Fully
2000
Threatened
1998
Threatened
1996
Partial
1994
Partial
1992
Partial
Details
Type
River
Segment ID
1581
Segment Size
26.54 Miles
HUC8
10230005
Legacy ADBCode
IA 06-LSR-0070_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(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).
5/31/2019
Map Map Legend
Click on a map element for more information.
Water Monitoring Network
Fish Kills
BioNet Biological Assessment Sites
AQuIA Monitoring Sites