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A. Flush all chemical lines with potable water. Purge all chemical lines of water using <br />nitrogen gas to remove standing water and moisture from lines. It is the Contractor's <br />responsibility to purge all water from chemical lines prior to filling lines with chemical to <br />prevent heat damage to piping systems. <br />B. Pressure test all chemical lines to 150 psi, for a duration of 2 hours. Pressure loss shall not <br />be less than 2% of test pressure. Pump suction lines shall be tested to 25 psi. <br />C. Ensure lines are thoroughly cleaned of all debris prior to placing into service. Contractor <br />takes responsibility for repairing chemical systems if not thoroughly flushed out. <br />D. Safety procedures should be employed during pressure testing with nitrogen gas, if used. <br />3.05 BACTERIOLOGICAL SAMPLING <br />A. It shall be the responsibility of the Contractor under this contract to perform the <br />bacteriological testing required by the Florida Department of Environmental Protection and <br />Indian River County Utilities Department to obtain clearance of all piping. The Contractor <br />shall be responsible to disinfect and repeat testing as needed until clearance is obtained. <br />B. The pumps and associated piping require two (2) consecutive daily samples taken from the <br />locations called out on the plans or as determined by the Engineer/Architect. The samples <br />shall be taken concurrently at all the respective sample point locations. <br />Co Sampling must be coordinated with Engineer/Architect and other construction activities so as <br />to minimize re,,sampling. <br />D. Contractor shall submit schedule for bacteriological testing and pressure tests. <br />E. The Contractor shall incur all costs needed to provide bacteriological clearance of the well, <br />Pumps, Piping s3'stems, and storage tank, etc. <br />3.06 QUALITY CONTROL <br />A. The laboratory and personnel collecting bacteriological samples shall be Florida State <br />certified in accordance with FDEP requirements. <br />END OF SECTION <br />044572017 <br />02670-4 <br />