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6. Geotechnical data was obtained (borings every 750' +/-) and results confirmed that there <br />were no deleterious materials (rock, muck, etc.) that could cause constructability issues. <br />7. Preliminary construction plans were prepared depicting the new 16" reuse Transmission <br />main and 12" reuse Distribution main, and the location of service laterals. Due to the ROW <br />area constraints, the reuse mains were designed to be installed by the horizontal <br />directional bore method. This method permits the installation of polyethylene reuse main <br />piping via a method of drilling a horizontal shaft thru the soil (approximately 5' to 8' deep) <br />and then pulling the pipe back thru the shaft. The pipe is heat fused / butt welded to provide <br />a long continuous pipe. A Directional bore contractor and utility contractor the engineer <br />has consulted with has advised that this method within the sandy soils encountered along <br />the route can be accomplished in 750 ft. pulls. This method allows the installer to avoid <br />potential conflicts with pavement improvements or existing utilities by allowing the installer <br />to plan and selecting bore pit locations where adequate area is available, and by boring <br />beneath and/ or around the conflicting facilities. Preliminary construction plans are <br />included as an attachment to this report. <br />8. A Preliminary construction cost estimate for the placement of the mains along the route <br />from CR 510 to Old Winter Beach Road was prepared (see Appendix A) <br />-16" Reuse Transmission Main: $1,494,478.87 <br />-12" Reuse distribution main/ services $2,134,399.40 <br />- Sea Oaks Reuse water storage and pumpi facilities: 3,053,020.00 <br />- Surveying, engineering, permitting, administra{oj„C�Al: 485,875.00 <br />-Total Project Cost: $7,167,773.27 <br />12 <br />162 <br />