Iowa DNR
Iowa DNR
ADBNet
Water Quality Assessments
Impaired Waters List

South Beaver Creek IA 02-CED-561

mouth (S25 T90N R17W Butler Co.) to confluence with Middle Fork South Beaver Cr. in S28T89R17W Grundy Co.

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 02-CED-0430_1
Overall Use Support
Fully
Aquatic Life Use Support
Fully
Documentation
Assessment Comments

Assessment based on 1996 biocriteria monitoring.

Basis for Assessment

[This subsegment was created in 1998 due to monitoring results that indicated a different aquatic life use assessment from that based on a 1992 DNR stream use assessment conducted approximately 2 stream miles upstream from the confluence with the N.  Fk.  of S.  Beaver Cr.  (see assessment for S.  Beaver Cr., Subsegment 2).]  Used results of the DNR biocriteria monitoring conducted in Grundy County in July 1996 approximately 2.5 mi SW of Parkersburg to assess support of the Class B(LR) aquatic life uses as FS.   This sampling showed a relatively diverse fish community of 17 species from 5 families that contained nearly all (10 of 11) of the expected fish taxa.   No violations of Class B(LR) water quality criteria occurred in the sample collected during biocriteria sampling.

Monitoring and Methods
Assessment Key Dates
Methods
330 Fish surveys
380 Quan. measurements of instream parms-- channel morphology-- floodplain-- 1-2 seasons-- by prof
220 Non-fixed station physical/chemical monitoring (conventional pollutant only)
315 Regional reference site approach
320 Benthic macroinvertebrate surveys
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 Fair