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SECTION 2 WELL SPECIFICATIONS 2 . 0 Conditions The work to be performed includes the construction, development and performance testing of two groundwater extraction wells. This will include the drilling of two pilot coreholes. These wells will be of filter pack type construction using either reverse circulation or top drive casing hammer, air rotary method. The following items of work which support the extraction well construction program are included in the scope of work to be performed by the Contractor. • The drilling contractor shall provide a portable mud pit or a portable settling pit and water supply pit at each of the well sites. The volume of the pit shall be determined by the Contractor. • Drilling water will be made available to the Contractor from the J.R. Simplot plant but will need to be trucked to the actual well site. • During the construction of extraction wells, the drilling contractor shall provide the pumping equipment, piping, hose, fittings, valves and power necessary to discharge the well development and testing water to a location within 100 feet of the well site as directed by the supervising geologist. • A pilot corehole will be drilled for each extraction well by the use of a mud rotary drilling rig capable of core sample recovery. Core will be recovered from the entire depth of the corehole using a 94-millimeter wireline core barrel or equivalent. 2 . 1 Extraction Well Nominal Specifications The following nominal well specifications are to be used as a basis for preparing the individual well lump sum quotation. Schematic diagrams are provided in Appendix A. EW-6 • Depth - 210 feet • Conductor Casing - minimum 16 inch diameter, 20 feet total length, low-carbon steel (required for reverse rotary drilling method only) • Blank Casing - eight inch diameter, . 25 inch wall thickness, 101. 5 feet total length; low-carbon steel, (slot size to be determined by sieve analysis) 2 - 1