Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

Pine Creek IA 01-WPS-386

mouth (S28 T88N R8W Buchanan Co.) to confluence with unnamed tributary in NE 1/4 S20 T89N R8W Buchanan Co.

Assessment Cycle
2006
Result Period
2002 - 2004
Designations
Class B(LR)
Assessment Methodology
Assessment Type
Monitored
Integrated Report
Category 1
Legacy ADBCode
IA 01-WPS-0140_0
Overall Use Support
Fully
Aquatic Life Use Support
Fully
Documentation
Assessment Comments

Assessment based on 2003 biocriteria data: FIBI = 70 (good), BMIBI = 76 (excellent). Non-riffle FIBI BIC = 44; natural substrate BMIBI BIC = 70.

Basis for Assessment

The assessment was based on data collected in 2003 as part of the DNR/UHL stream biocriteria project.  The 2003 FIBI score was 70 (good) and the BMIBI score was 76 (excellent).   Riffle-site FIBI BIC = 65; Hess sample BMIBI BIC = 70..  The aquatic life use support was assessed as fully supporting (= FS), based on a comparison of the FIBI and BMIBI scores with biological impairment criteria (BIC) established for previous Section 305(b) reports.  The biological impairment criteria were determined from a statistical analysis of data collected at stream ecoregion reference sites from 1994-2004.   The non-riffle site FIBI BIC for this ecoregion is 44 and the natural substrate sample BMIBI BIC for this ecoregion is 70.

Monitoring and Methods
Assessment Key Dates
8/11/2003 Biological Monitoring
Methods
220 Non-fixed station physical/chemical monitoring (conventional pollutant only)
315 Regional reference site approach
320 Benthic macroinvertebrate surveys
330 Fish surveys
380 Quan. measurements of instream parms-- channel morphology-- floodplain-- 1-2 seasons-- by prof
Monitoring Levels
Biological 4
Habitat 4
Physical Chemistry 1
Toxic 0
Pathogen Indicators 0
Other Health Indicators 0
Other Aquatic Life Indicators 0
# of Bio Sites 1
BioIntegrity Excellent