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  <br />CITY OF SUNNY ISLES BEACH SECTION 03500 - 2 <br />WELL DEVELOPMENT <br />  <br />A. Provide all pumps, motors, air compressors, surge tanks and other ancillary equipment <br />needed to develop the well to the extent that, as practical, suspended solids have been <br />removed from the well bore. All generators and diesel fuel powered pumps shall be <br />equipped with critical grade silencers. Provide all pipe, fittings, and valves required to <br />transmit discharge water from the well to the settling tanks and the disposal point(s). <br />Provide all chemical additives as needed. <br /> <br />B. The test pumping equipment shall have access ports, water level measurement setup <br />and discharge piping. The CONTRACTOR shall provide a pump capable of rates <br />between 200 and 2,000 gallons per minute (gpm) and manufacturer pump curves in <br />accordance with this section. Specific development rates shall be specified by the <br />ENGINEER on a well by well basis. <br /> <br />C. The CONTRACTOR shall provide a calibrated flow meter near the pump. The flow <br />meter shall be accurate and precise within the range of 200 gpm to 2,000 gpm. The <br />placement of the flow meter shall be in accordance with manufacturer <br />recommendations for flow meter placement. The CONTRACTOR shall also consult the <br />ENGINEER for optimal flow meter placement. Air release valves shall be provided and <br />installed by the CONTRACTOR at as many locations as required by the ENGINEER. <br /> <br />D. The development equipment must be able to divert flow of water in a controlled manner <br />to minimize flooding and erosion. Discharge water shall be clear and free of suspended <br />solids. Discharge water shall be retained temporarily using a settling tank for settlement <br />of solids and pumped via temporary piping to the discharge point as directed by the <br />ENGINEER. Tanks required for settling of solids and additional pumps and temporary <br />piping needed to transmit water to the discharge point shall be included in the unit cost <br />for development. Management and removal of development solids shall be included in <br />the unit cost for development. <br /> <br />PART 3 - EXECUTION <br /> <br />3.1 OPEN HOLE WELL DEVELOPMENT <br /> <br />A. Initial development will be performed with the drill string and drill bit at the base of the <br />open interval. The well will be pumped from the total depth using the reverse air setup <br />until the discharge water is free of sediment. <br /> <br />B. After initial development, the well will be developed using compressed air lift at a <br />minimum air flow rate of 750 cubic feet per minute. The base of the air discharge will be <br />set no deeper than the base of casing during the initial development period. As directed <br />by the ENGINEER, the CONTRACTOR shall lower the air line into the open interval <br />during air lifting. The CONTRACTOR shall frequently measure and record the total