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12/06/06 WED 17:55 FAX 727 867 9455 Wi 11 inghamCompanies ~005 ..".r!'I' ., " II. . ~. . ~: Zephyrhillli Professional Center Site Pasco County, Florldll GDE Job No. 05-432 Page 1 PROJECT INFORMATION Existing Site Based on the project information provided for our review, we understa rid that the project is proposed to consist of a commercial office building with an associated pond and roadways located at the apex of Dale Mabry Highway and US 41 (Land 0' Lakes Boulevard) in Pasco County, Florida, Project information was provided by Willingham Architecture, PA We have assumed minor earthwork will be associated with the site development and anticipated cut and fill quantities less than 2 to 3 feet. Project Approach The objective of the geotechnical investigation for the proposed project was to obtain information concerning the general subsurface conditions over the site in order to make preliminary geotechnical engineering estimates and recommendations in each of the following areas: . Soil stratigraphy at the boring locations and the development of the approximate soil profile. . General location and description of potentially deleterious materials which may interfere with construction progress or new structure performance, including buried or surficial existing fills, organics, construction debris, etc. . Identification of some critical design or construction details, including present groundwater levels, estimated wet season levels, and seasonal fluctuations across the site. . Suitability and availability of materials found on-site, that might be excavated or moved during site grading, for use as structural fill in the building and pavement areas and as general backfill. . Engineering criteria and recommendations for the placement and compaction of approved fill materials (if necessary) in and around all proposed pavement areas. . Design and construction recommendations considering the water table conditions. Scope of Work In order to address the above objectives, our scope of work for this project included the following: . Reviewed available published information on the site, including the United States Department of Agriculture (USDA) Soil Censervation Service (SCS) soil survey data for Pasco County. Conducted a subsurface exploration program consh.ting of soil borings, subsurface sampling, and field-testing, Our exploration progmm for this project consisted of conducting 8 SPT borings to a depth of 25 feet for the structures and 5 auger borings to 8 feet for the roadway/parking locations (Figure 2 - Boring Locations). Our testing included the collection of representative soli samph!s and recording the SPT blow counts during the drilling of the borings. Measured the stabilized groundwater levels at the boring locations. . .