Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Crane Creek IA 01-WPS-406

from confluence with unnamed tributary (NE 1/4 S16 T91N R12W Bremer Co.) to confluence with unnamed tributary in S17 T92N R12W Bremer Co.

Assessment Cycle
2006
Result Period
2002 - 2004
Designations
Class B(LR)
Assessment Methodology
Assessment Type
Not Assessed
Integrated Report
Category 3a
Legacy ADBCode
IA 01-WPS-0180_3
Overall Use Support
Not assessed
Aquatic Life Use Support
Not assessed
Documentation
Assessment Comments

Insufficient information available to develop an assessments. Previous assessment was based on results of a November 1994 IDNR stream use assessment.

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 1994.   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).