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compensation for the disinfection of all required piping systems. Disinfection <br />shall be conducted on the following systems: <br />1. Water main piping and valves. <br />B. Conform to AWWA Standards and as modified herein. <br />C. Maintain disinfectant for a minimum of 8 hours in such a manner that the entire <br />system will be filled with water containing a minimum chlorine concentration of <br />50 ppm at any point. <br />D. After the disinfecting agents have been permitted to remain for the specified <br />contact periods, the water lines, and valves shall be thoroughly flushed with <br />water until the residual chlorine tests are less than 2 PPM in each instance. <br />The determination of the amount of residual chlorine in the system shall be <br />made at such points and in accord with standard tests by means of a standard <br />orthotolodine test set. <br />3.04 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 <br />Protection and Indian River County to obtain clearance of the water main <br />piping. The Contractor shall be responsible to disinfect and repeat testing as <br />needed until clearance is obtained for all required plant systems. The <br />Contractor shall be responsible to pay for additional water needed if the <br />bacteriological testing must be repeated for the clearance of the ground storage <br />tank. <br />B. The piping systems require two (2) consecutive daily samples taken from the <br />locations called out on the plans or as determined by the Engineer. The <br />samples shall be taken at all the respective sample point locations. <br />C. Sampling must be coordinated with Engineer and other construction activities so <br />as 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 <br />the piping systems. <br />3.11 QUALITY CONTROL <br />A. The laboratory and personnel collecting bacteriological samples shall be Florida <br />State certified in accordance with FDEP requirements. <br />Item of Payment <br />Payment shall be made under: <br />Bid Item 166-4800 — Relocate Existing Fire Hydrant — Per Each <br />+ + END OF SECTION + + <br />01025-39 Technical Specifications <br />FAPublic Works\ENGINEERING DIVISION PROJECTS\1137-Old Dixie Hwy Resurfacing IRF North Relief Canal to 71st St\Admim\bid <br />documents\Contract Documents\Technical Specifications REVISED.doc <br />