Iowa DNR
ADBNet

Water Quality Assessments

Impaired Waters List

Volga River IA 01-VOL-296

confluence with Little Volga R. (S2 T92N R9W Fayette Co.) to confluence with unnamed tributary in SE 1/4 S24 T93N R10W Fayette Co.

Assessment Cycle
1998
Result Period
1994 - 1996
Designations
Assessment Type
Monitored
Integrated Report
Category 0
Legacy ADBCode
IA 01-VOL-0020_3
Overall Use Support
Fully
Aquatic Life Use Support
Fully
Documentation
Assessment Comments

1992 stream use assessment in Fayette County. 1995 biocriteria site (47C9).

Basis for Assessment

Used a review of the May 1992 DNR stream use assessment, and the September 1995 DNR biocriteria sampling in Fayette County to upgrade the assessment of support of the Class B(LR) aquatic life uses from FST to FS due to (1) presence of a very diverse fish community (26 species from 5 families (1995 biocriteria)) for streams in the Iowan Surface subecoregion, (2) presence of nearly all the expected fish taxa (11 of 12) for streams in this subregion, (3) presence of several sensitive species, including largescale stoneroller, Ozark minnow, rosyface shiner, northern hogsucker, black redhorse, smallmouth bass, rainbow darter, and banded darter, and (4) indications of above average habitat quality.

Monitoring and Methods
Assessment Key Dates
9/20/1995 Biological Monitoring
5/1/1992 DNR Stream Use Assessment
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 2
BioIntegrity Good