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BUILDING PAD SPECIFICATION <br />1. Scope <br />This specification provides for the construction of the building pad that will house the pump and controls for the <br />reservoir outlet to the feedyard water system. Site specific geotechnical testing will be required of a qualified <br />geotechnical engineering firm to provide the field testing values (density and moisture readings) for the <br />installation of the pad material. <br />2. Foundation Preparation and Excavation <br />The footprint of the building pad shall be stripped to a depth of 3 to 6 inches to remove vegetation and organic <br />matter and then scarified and wetted to create a foundation for the pads and preparation for any lifts of fill <br />material. All strippings shall be stockpiled for use as final backfiil material ag the barns. <br />3. Fill Material <br />Soils from 5 to 17 feet below surface in the area of the area of excavation of the reservoir have been identified as <br />PREFERRED LINER AND EMBANKMENT MATERIAL. Any material that remains from the surface to a <br />depth of 17 feet shall be used in the construction of the building pads as required. One building pad is proposed <br />for this project. The building pad will be constructed above grade. Soils used shall be free of foreign material <br />such as vegetation, organic matter, trash, brush, fallen trees or other objectionable material. Stone over three (3) <br />inches in diameter shall be removed from the fill material. <br />3. Building Pad Construction <br />The building fill shall be placed in horizontal layers (lifts) not to exceed six (6) inches in compacted thickness. <br />The fill shall be added and compacted to achieve the final elevations and grades shown on the construction plans. <br />Each lift shall be compacted with a standard sheepsfoot roller, or other equivalent methods which must be <br />approved by the Engineer. Roller feet or cleats should have sufficient length to penetrate the loose lift to the <br />underlying compacted lift in order to achieve good bonding at the lift interface. The placement of lifts shall be <br />accomplished such that there are no lenses or streaks of liner material. The used of smooth drum rollers is not <br />acceptable. <br />Water will need to be added to the fill material to achieve the proper moisture content for compaction. Water is <br />available at the site for moisture control of the installation process. Water is typically applied using truck <br />mounted tanks equipped with spray bars. The amount of water to be added should be sufficient to bring the <br />moisture level of the soil mixture to somewhat wet of minimum. Immediately after application, the water should <br />be thoroughly mixed into the material to eliminate surface ponding and enable the mixing equipment to operate <br />without excessive loss of traction. The preferred method to add and mix moisture is to apply water using spray <br />trucks to the soil to be excavated or to add water as the lift is being place, then mix the material using a disc to <br />create a homogeneous mixture. <br />4. Building Pad Construction Testing <br />Each compacted six -inch lift shall be tested by a geotechnical laboratory for compaction and moisture content. <br />Each embankment lift shall be compacted to 95% of Standard Proctor at optimum moisture content (A to +3 %). <br />All test reports shall be submitted to the Engineer. 'Pests shall be provided for every 600 cubic yards of <br />material placed (within 200 ft for 6 inch compacted material), verify with Engineer prior to construction. <br />SECTION 3100 00 - 7 <br />