Crane Creek IA 01-TRK-212

confluence with Spring Cr. (S17 T97N R12W Howard Co.) to confluence with unnamed tributary in NW 1/4 S33 T99N R13W Howard Co. north of Maple Leaf.

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

Monitored

Integrated Report

Category 1

Legacy ADBCode

IA 01-TRK-0440_3

Overall Use Support

Fully

Aquatic Life Use Support

Fully

Documentation

Assessment Comments

Assessment based on the results of the IDNR/UHL biological (biocriteria) sampling in 2000: FIBI = 64 (good), BMIBI = 56 (good). Non-riffle FIBI BIC = 44, artificial substrate BMIBI BIC = 52.

Basis for Assessment

SUMMARY: The Class B(LR) aquatic life uses are assessed (monitored) as "fully supported" based on results of IDNR/UHL biological (biocriteria) sampling in 2000.

EXPLANATION: The assessment was based on data collected in 2000 as part of the DNR/UHL stream biocriteria project. The 2000 FIBI score was 64 (good) and the BMIBI score was 56 (good). The aquatic life use support was assessed as "fully supported" (=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 artificial substrate BMIBI BIC for this ecoregion is 52.

Monitoring and Methods

Assessment Key Dates

10/11/2000	Biological Monitoring
10/11/2000	One-time Chemical 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	Good

Causes and Sources of Impairment

Causes	Use Support	Cause Magnitude	Sources	Source Magnitude
Other habitat alterations	Aquatic Life Support	Not Impairing	Bank or Shoreline Modification/Destabilization Channelization Habitat Modification (other than Hydromodification) Hydromodification	Not Impairing Not Impairing Not Impairing Not Impairing