2006 assessment for West Fork Little Sioux River

West Fork Little Sioux River IA 06-LSR-1600

from confluence with Mud Cr. (S31 T89N R44W Woodbury Co.) to confluence with unnamed tributary in S3 T91N R42W Cherokee Co.

This is a Legacy Assessment. Assessments prior to 2016 were developed under the previous USPEA guidelines, and have a different format.

Assessment Cycle

2006

Result Period

2002 - 2004

Designations

Class B(LR)

Assessment Methodology

2006 Methodology Document

Assessment Type

Not Assessed

Integrated Report

Category 3a

Legacy ADBCode

IA 06-LSR-0130_0

Overall Use Support

Not assessed

Aquatic Life Use Support

Not assessed

Documentation

Assessment Comments

Insufficient information available to develop an assessment. Previous assessment was based on results of an IDNR stream use assessment in October 1995 near Moville, Woodbury County.

Basis for Assessment

SUMMARY: The Class B(LR) aquatic life uses are considered "not assessed" due to the age of the biological data upon which the previous assessments of these uses ("fully supported") were based.

EXPLANATION: The 2004 assessment for this stream segment was based on results of biological monitoring conducted as part of an IDNR stream use assessment in 1995. Because the data upon which this assessment was originally based have aged beyond 10 years--and are thus considered too old to characterize current water quality conditions--the Class B(LR) uses of this segment are now considered "not assessed". Thus, this stream segment is moved from IR Category 1 to 3a (insufficient information to assess any uses).