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Design and Analysis Specifics for Indiana Streams
Information on Indiana Streams is presented following the
Design and Analysis
Processes, only portions of sections of Indiana's Surface Water Quality
Assessment Program relevant to streams is presented. For information on
Indiana's surface water quality monitoring see:
www.state.in.us/idem/water/programs/.
Example is based on R 2.2.1 and psurvey.analysis_2.9 (other R versions please see: R Compatability Notice)
Program Goals, Objectives, Design, Illustrative Example, Indicators, Analysis, Results
Indiana Monitoring Program Goals:
- Measure the physical, chemical, bacteriological, and biological quality of the aquatic environment in all river basins and identify factors responsible for impairment.
- Assess the impact of human or other activities that occur in all river basins and the probable effects of these activities on the quality of the dynamic ecosystem and drinking water source protection.
- Identify trends through the analysis of environmental data from a variety of sources and make recommendations for the protection of designated uses of the surface water resources of the State.
- Provide environmental quality assessment to support the water quality management program in partnership with customers and stakeholders.
- Surface Water Quality Monitoring Strategy - Fact Sheet (PDF)
- Assessment of the quality of surface waters of Indiana's streams for designated water uses.
- State's ten major watershed's are combined into five major units for environmental sampling, analysis, and assessment
- Goal of completing all areas during a five year period.
- The field sampling strategy is designed to describe the overall environmental quality of each basin
- Includes sampling from statistically selected sites
- Data collected, analyzed, and assessed with information published in multiple formats
- Probability Based Design
- Five year rotating basins, one or more watersheds per Basin
- Sampling sites in each Basin
- Sites Sampled in 1998 Upper Wabash River Basin
Illustrative Example:
An example based on the Upper
Wabash Basin is presented to facilitate understanding the design,
analysis and estimation procedures. The Design was completed in 1998, field
sampling conducted in 1998, and results reported in 2000. All files needed to
reproduce the example analysis can be downloaded, including the
statistical software R and code. Results for this example are included for
comparison and checking. However, the Indiana 2000 Report combined the results
from the original analysis with other data and the results presented on this
web site are not intended to reproduce those in the Report.
| Program Element | Indicators |
| Watershed Monitoring | Water chemistry, fish tissue and fish community, macroinvertebrate community, and habitat assessments |
| Fish Community Assessment | Fish Index of Biological Integrity |
| Macroinvertebrate Community Assessment | Macroinvertebrate Index of Biological Integrity |
The analysis incorporates the design features and estimates indicator status for the target population. Estimates are prepared for impairment status, based on Indiana Water Quality criteria, for both stream length and percent for the target population. The Illustrative example includes both tabular and graphical estimates.
Results & Reporting
- Summary of Extent and Status Estimates for the Example
- Indiana Water Quality Report 2000
- 2001 Indiana State of the Environment Report/Water Quality
- INTEGRATED WATER MONITORING AND ASSESSMENT REPORT 2002
- Table of Contents (PDF)
- Executive Summary (PDF)
- Background (PDF)
- Surface Water Assessment (PDF)
- Appendix A Metadarta and Definitions (PDF)
- Appendix C Comprehensive Basin Aquatic Life Use Assessment (PDF) [Probability Based Estimates]
- EPA's Watershed Assessment Tracking & Environmental Results System