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USING GIS TO MAP THE DEPTH TO SEDIMENT OF A POND USING A SONIC DEPTH METER AND A TRIMBLE GPS SYSTEM
Citation:
Beck*, F P., P J. Clark*, R G. Ford, AND V. Murray. USING GIS TO MAP THE DEPTH TO SEDIMENT OF A POND USING A SONIC DEPTH METER AND A TRIMBLE GPS SYSTEM. Presented at AWRA 2002 Summer Specialty Conference, Keystone, CO, 07/01-03/2002.
Description:
During a research project to identify the source of Arsenic in a watershed, it became necessary to characterize the subsurface sediments in a pond associated with the watershed. This paper describes the process that we used to measure the depth and identify the location of the depth measurements. It also shows how, using GIS, the data was coupled with a USGS aerial photograph to put the entire scenario in proper perspective. With this data, we were able to show the areas beneath the lake, where the groundwater was entering the pond and by using a conductivity probe identify the level of contaminants entering the pond.