A research institute of the OVPR
 
  
Geological Research at the IGS

Restoration of West Dunes Creek-Great Marsh complex

Status Start Date End Date Locations
completed Aug 30, 2003 Sep 1, 2004 Lake
Director: Greg Olyphant
Other Researchers:
Funding: U.S. Environmental Protection Agency (EPA)
Issue: E. coli loadings frequently exceed the full-body contact limit of 235 CFU/mL in Dunes Creek, which discharges onto a popular bathing beach at Indiana Dunes State Park located on Lake Michigan. In addition to investing in scientific prediction models to evaluate E. coli-loading risks, decision makers have decided to evaluate the potential of restoring wetlands in the area to reduce bacterial loadings.
Objective: The design of the project was intended to further scientific research and insight into potential reduction of E. coli levels in receiving waters following increased solar exposure, sedimentation, filtration, increased retention, and biological treatment provided by wetlands.
Approach: The project requires the construction of a wetland where E. coli-loading both up- and down-gradient of the wetland will be monitored and measured. Continuous monitoring of hydrologic conditions will take place, as will frequent water collection and analysis of E. coli concentrations.
Products: The products include digital databases of the collected data, along with analysis and interpretation of the data.
Benefits: The data collected from this project will provide researchers insight into what effects wetlands have on E. coli loading in the Dunes Creek Watershed that eventually discharge onto the bathing beaches at Indiana Dunes State Park located on Lake Michigan.
Publications:

Characterization and statistical modeling of bacterial (Escherichia Coli) outflows from watersheds that discharge into southern Lake Michigan
Olyphant, G.A., Thomas, J., Whitman, R.L., and Harper, D., 2003. Characterization and statistical modeling of bacterial (Escherichia Coli) outflows from watersheds that discharge into southern Lake Michigan. Environmental Monitoring and Assessment, Special Issue on EMAP Symposium 2001: Coastal Monitoring through Partnerships, 81:289-300.

Restoration of West Dunes Creek-Great Marsh complex


 
 
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