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CONTRACTOR's Project Superintendent(s), shall be legally binding on the CONTRACTOR pursuant to this Contract. The CONTRACTOR' S Project Superintendent(s) shall be on the site at all times during project construction and available at all times to the COUNTY by pager and/or cell phone. Dredge plant personnel may not serve as Superintendents. 23 . CONSTRUCTION OFFICE The CONTRACTOR shall maintain a construction site field office within the general project area. This office shall be kept open and attended during working hours while construction is underway. A complete set of Construction Plans and Specifications, any Contract Modifications/Change Orders or written instructions from the COUNTY and/or ENGINEER and duplicate copies ofall permits shall be kept in a dry location in the construction site field office, in any dump shack, and also on the dredge at all times during project construction. 24 . CHARACTERISTICS OF THE BORROW AREAS 24. 1 Borrow Areas. The Offshore Borrow Areas are located approximately 15 nautical miles south of the south project limit, and 2.0 miles offshore for Sectors 1 & 2 and 500 feet south of the project and 10,000 feet offshore for Sector 7 . The Sebastian Inlet Sand Trap is located in the Sebastian inlet Within the permitted area, limited sections have been delineated for dredging based on quality of the material . The COUNTY reserves the right to alter the dredge sections or cut depths within the permitted borrow area depending on the quality of the material observed during the dredging process. 24. 1 . 1 Borrow Material. The Specifications and Plans are based on physical data collected by bathymetric, jet probe, and vibracore sampling methods. Vibracore sampling locations are shown in the Plans. The characteristics of the material in the borrow area are generally indicated by the boring logs, sediment analysis data sheets, and grain size distribution curves provided in Appendix A. While the vibracore samples may be representative of subsurface conditions at their respective locations and vertical extent, local variations are to be expected and the CONTRACTOR should be aware that it is possible for material of differing characteristics to be present in the Borrow Area. Should any questions or discrepancies arise relative to this data, the conditions shall be independently confirmed by the CONTRACTOR at the CONTRACTOR ' S expense. The removal and replacement of any material deemed unsuitable for and/or inconsistent with beach fill material will be solely at the CONTRACTOR' S expense. No dredging is permitted in excess of the specified dredge cut depths or horizontal limits shown on the Plans. Based on available core boring information, in general, the material found within the borrow area consists of poorly sorted, medium-to-fine grain size sand. Based upon core analysis information, the composite mean grain size for the Borrow Area is calculated to be 0.46 mm and the silt/clay content is approximately 1 .44%. The description ofthe material is based on the site investigations and core borings, which are provided in Appendix A, and describe data for cores obtained from the specified TECHNICAL AND ENVIRONMENTAL SPECIFICATIONS Rev October 5 . 2007 TS-23