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Neat Cement Materials: a) Potable Water b) Type I or II Portland Cement Mixture: 5.2 to 5.8 gallons of water to every 94-pounds of cement 1.13 Well Sealing Procedure 1. A tremie pipe shall be installed in the well to 10 feet above the measured bottom of the well. 2. Slurry (as defined in Section 1.12) shall be pumped with a cement pump into the casing through the tremie pipe to bring the slurry up to a depth of approximately 5- feet below ground surface. The bottom of the tremie pipe shall remain submerged in the slurry throughout the sealing process. The seal shall be placed in one continuous lift. until all the calculated volume of slurry has been pumped. 3. A hole shall be excavated around the well casing to a depth of 5 feet below the ground surface and the well casing and existing cement annular seal removed to the bottom of this excavation. The slurry shall be allowed to spill over the top of the casing into the excavation to form a mushroom cap. After the sealing material has cured, the excavation shall be filled to the level of the surrounding grade with clean imported fill compacted in 1-foot lifts. The top 5 feet of the casing and slurry shall become the property of the Contractor. It is estimated that the abandonment of the well structure will require 50 cubic yards of sealing material. Additional sealing material, if required to complete abandonment of well structure according to specifications, shall be billed on a per cubic yard basis as verified by the Owner's representative. Payment for Item No. 6, "Sealing Material" shall be at the contract lump sum prices as set forth in the proposal assuming a total required sealing material volume of 50 cubic yards, and shall include all labor, materials, tools, equipment, and all work necessary for the completion of these items. Payment for Item No. 7, "Extra Sealing Material" shall be at the contract unit prices per yard as set forth in the proposal and shall include all labor, materials, tools, equipment, and all work necessary for the completion of these items. 1.14 CAPPING OF PIPING Any discharge lines (raw water, overboard, sewer laterals) or any other piping originating from within the well structure shall be exposed to a depth of 2 feet below ground surface, capped with an appropriate water tight cap, and covered with fill material finished to match surrounding grade.