Iowa DNR
ADBNet

Water Quality Assessments

Impaired Waters List

Wapsipinicon River IA 01-WPS-342

from Pine Cr. (S28 T88N R8W Buchanan Co.) to confluence with Harter Cr. at Independence in NW 1/4 S34 T89N R9W Buchanan Co.

Assessment Cycle
2020
Release Status
Final
Cycle Period
2016 - 2018
Overall IR Category
2 - Some of the designated uses are met but there is insufficient data to determine if remaining designated uses are met.
Trend
Unknown
Created
8/7/2020 8:36:34 AM
Updated
10/15/2020 1:51:05 PM
Assessment conducted in accordance with Iowa's 2020 IR methodology
Use Support
Class A1
Not Assessed
Class BWW1
Not Assessed
Class HH
Fully Supported
General Use
Not Assessed
Impairment Delistings
No delistings for this assessment cycle.
Documentation
Assessment Summary

The Class HH use remains assessed as "fully supported" based on fish tissue sampling data. All other designated uses were "not assessed".

Assessment Explanation

Sources of Data:

Data Source

Data Source ID

Data Type

Data Age

Site ID

Site Name

Site Description

Iowa DNR

6

FT

See Below

163

Wapsipinicon River

1 mi. SE of Independence


Class A1 - No Data

Class BWW1 - No Data

Class HH – Fish Tissue Sampling:

Site ID

Date

Species Name

Biopart

# in sample

chlordane result

chlordane violation (>0.6)?

PCBs result

PCBs violation (>0.2)?

Hg result

Hg violation (>0.3)?

Assessment Type

Support Level

163

9/1/2011

smallmouth bass

plug

5

0.245

No

Evaluated

Full

163

9/1/2011

channel catfish

fillet

5

<0.031

No

<0.09

No

0.067

No

Evaluated

Full

Monitoring and Methods
Assessment Key Dates
9/1/2011 Fish Tissue Monitoring
Methods
260 Fish tissue analysis
150 Monitoring data more than 5 years old