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. . Report of Concrete Slab Evaluation . RE&A Project No. 2825-15-023-SE-A Existing TKM Aviation Hangar - June 27, 2017 The referenced property, a hangar owned and operated by TKM Aviation (TKM), is within the western section of Zephyrhills Municipal Airport, and to the northeast of existing Zephyrhills Municipal Golf Course in Zephyrhills, Pasco County, Florida, specifically at 39405 B Avenue. The property can be accessed from�B Avenue on northwest. Below is a summary of field conditions. _ Summary of Field Conditions Observed • 'The existing development at site consists of a metal building, with a footprint of 100 feet x 100 feet approximately, facing southeast, and two concrete driveways, one to the �u southeast, and the other to the northwest of the building. The hangar is being operated as mechanic and maintenance shop for small aircrafts. • The general area of the proj ect site appears to be level to very gently sloping towards southeast. The building and driveway areas were apparently raised appro�umately 1 to 2 feet with fill material. A shallow retention swale/pond, an area approximately 30 feet wide and the bottom about 2 to 2.5 feet lower than the building floor level was along the southwest of the building. • The building is supported on steel columns spaced at approximately 20 to 27 feet. • The epoxy coated concrete slab inside building was cracked at numerous locations. The concrete slab in the driveway areas was relatively intact. Please refer to attached Test - Location Plan (Sheet 1) in the Appendia� for the building schematic and approximate _ locations of the cracks. Representative pictures are also attached in Appendix (Photos 1 to S). Review of Existing Site Information � Based on the results of the soil testing for the previously referenced report by RE&A, the subsurface soils at the project site consisted of loose fine sand(SP)with average N-value of 6 BPF to a depth of 4 feet, followed by medium dense to loose clayey and silty sands (SC, S1Vn with N-values in the range of 7 to 28 BPF, an average of 15 BPF, to boring ternunation depth of 30 feet. The groundwater was encountered at a depth of 13 feet below e�usting ground surface at the boring location. 2 �