Upper Iowa River IA 01-UIA-239

from confluence with Trout Cr. (S9 T98N R7W Winneshiek Co.) to confluence with Tenmile Cr. in S1 T98N R9W Winneshiek Co.

This is a Legacy Assessment. Prior to 2004, assessments were developed under a methodology that pre-dated the Integrated Report guidelines.

Assessment Cycle

2000

Result Period

1996 - 1998

Designations

Assessment Methodology

2000 Methodology Document

Assessment Type

Monitored

Integrated Report

Category 0

Legacy ADBCode

IA 01-UIA-0110_2

Overall Use Support

Fully

Aquatic Life Use Support

Not assessed

Fish Consumption

Fully

Primary Contact Recreation

Not assessed

Documentation

Assessment Comments

Assessment is based on statewide assessment of freshwater mussels in Iowa (Arbuckle et al. 2000). Potential causes & sources of impairment were applied to all sites in study. See attached document for details.

Basis for Assessment

SUMMARY: Both the Class A (primary contact recreation) uses and the Class B(WW) aquatic life uses remain "not assessed." the fish consumption uses remain assessed as "fully supported." EXPLANATION: : The Class A and Class B(WW) uses remain "not assessed" due to the lack of chemical or biological monitoring data for this river reach. The fish consumption uses remain assessed as "fully supported" based on results of EPA/DNR fish tissue (RAFT) monitoring in 1996 (see assessment for the 1998 report).

Monitoring and Methods

Assessment Key Dates

Methods

260	Fish tissue analysis

Monitoring Levels

Biological	0
Habitat	0
Physical Chemistry	0
Toxic	0
Pathogen Indicators	0
Other Health Indicators	0
Other Aquatic Life Indicators	0
# of Bio Sites	0
BioIntegrity	N/A