Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Thompson River IA 05-GRA-1353

from confluence with Twelvemile Cr. (S36 T71N R28W Union Co.) to U.S. Highway 34 (S17 T72N R28W Union Co.). (Note: segment boundary changed in 2004 to match 2002 WQ Standards).

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Not Assessed
Integrated Report
Category 0
Legacy ADBCode
IA 05-GRA-0060_1
Overall Use Support
Not assessed
Aquatic Life Use Support
Not assessed
Fish Consumption
Not assessed
Documentation
Assessment Comments

Basis for Assessment

Subsegment created for the 1998 report due to excessive length (approximately 55 miles) of the previous Class B(LR) assessment segment upstream from Twelvemile Creek in Union County.   No information available; reach not assessed as part of DNR stream use assessments, 1990-1995.   Not assessed for the 1998 report.