Abstract
 Groundwater Resource Planning--Defining the Shallow Aquifer System Track: Water Resources Author(s): Kurt Thomsen, Janet Agnoletti, Connie Pokorny To establish water resource baseline conditions using limited resources, the Barrington Area Council of Governments (BACOG) developed a method to produce baseline hydrogeologic unit maps from readily available borehole log data using GIS querying techniques. Borehole strata descriptions were converted to numerical values by establishing the average hydraulic conductivity of the combined soils making up the stratum of interest. These hydraulic conductivity values were then used to assign each stratum to a hydrogeologic unit based on typical ranges of hydraulic conductivity for aquifers, aquitards and aquicludes. In this manner, the well log data was queried to describe the shallow aquifer system. The bedrock surface, basal aquifer and overlying stratigraphy were described. Aquifers, aquitards and aquicludes overlying the bedrock were defined and preliminary interrelationships were established. Analysis of the resulting information produced cross-sections in areas of interest and identification of potential recharge areas. Kurt Thomsen KOTECI 1706 Michigan Boulevard Racine , WI 53402-4933 US Phone: 262 880 5272 Fax: 262 634 7488 E-mail: thomsenko@aol.com Janet Agnoletti Barrington Area Council of Governments 218 West Main Street Barrington , IL 60010 US Phone: 847 381 7871 Fax: 847 381 7882 E-mail: j.agnoletti@bacog.org Connie Pokorny Barrington Area council of Governments 218 West Main Street Barrington , IL 60010 US Phone: 847 381 7871 Fax: 847 381 7882 E-mail: c.pokorny@bacog.org |
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