23A - PROJ - WATER MAIN IMPROVEMENTS

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CITY OF SANTA ANA SPECIFICATIONS PROJECT NO. 11 -6416 SEVENTEENTH STREET WATER MAIN IMPROVEMENTS When crossing existing water main or service line, Contractor shall adjust grade as necessary to install the new main beneath the existing facility, unless otherwise directed by the Engineer. When making connections to existing water main or service line, Contractor shall provide all fittings necessary (i.e. tees, bends, adaptors, etc.) to adjust the grade and alignment as needed to facilitate the connection. The cost of this work shall be included in the unit price for PVC water main and no additional compensation will be allowed. When there are specific locations indicated on the plans where it is known that additional excavation will be required to avoid conflicts with other utilities, these locations and required depths are clearly noted on the plans. The Contractor shall include any associated cost for this work in unit price per linear foot for PVC water main bid items and no additional compensation will be allowed. Pipe shall not be stored in direct sunlight. Pipe stored outdoors shall be protected from discoloration by covering it with opaque material such as canvas. The covering shall be placed in such a way as to allow adequate air circulation between the cover and the pipe. Discolored pipe shall be rejected. Hydrostatic testing: pressure and leakage tests shall be in accordance with the applicable provisions of AWWA Std. C600 -05. The line shall be tested at a pressure of 200 psi. Hydrostatic pressure testing of the main shall not be performed directly against a valve. A steel test plate shall be inserted between the valve and main when performing hydrostatic pressure testing. All new pipelines and appurtenances shall be chlorinated and disinfected in accordance with AWWA Std. C651 -99 and shall meet all health department standards. The Contractor shall submit a "Disinfection and Flushing Plan" prior to commencing construction. After disinfection, the lines shall be flushed by the Contractor and water samples taken by an approved laboratory representative for bacterial analysis in accordance with AWWA specifications. Discharge from flushing of pipelines shall be routed to the sanitary sewer system. Connection to existing water main facilities shall be made only after the successful completion of pressure test and bacteria test. For all water main tie -ins, Contractor shall notify residents /property owners a minimum of 48 hours prior to any interruption in service. Every effort shall be made to minimize the T -3i 23A -104