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PORT OF EVERET"T SECI'ION 02510 <br /> NORTH MARINA REDEVEIAPMENT R'ATER DISTRIBUTION <br /> SEiAI.LOW SOIL VCP CLEAN[7P ACTION <br /> when watet in ttench threatens to enter pipe. Kecp gcoundwater <br /> from entering pipe at all times. Lay and maintain pipe to required <br /> lines a�ith &ttings and valves at requized locations and valve stems <br /> p]umb. Lay pipe in accordance with Manufacturec's instcuctions and <br /> to A�VWA standacds foc type of pipe being installed Constzuct <br /> pipelines to pcovide cover shown on Drawings• Slope need not be <br /> constant,but inst111 pipelines so no high or low poinu exist in <br /> 6nished line except at locations of fire hydcants,blow offs,air/ <br /> vacuum valves,or future pipe extensions. <br /> 2, Alignment of Pipe:At conflica with other utiliries,such as telephone <br /> and existing warec mains,xealign pipe subject to approval of <br /> Enginccr. <br /> 3. Cutting Pipe:Cut pipe smooth,even,and square. Remove chips and <br /> cuttings hom intcrior of pipe. Bevcl cut pipe ends to prevenc <br /> damage ro gaskca during insnllarion. <br /> 4. Hcat Fusion Joining of Polyethylene Pipe:)oin HDPE pipe with <br /> thcrmal butt fusion. Comply with ASTM D-2657. Pipe and fitting co <br /> be joined shall be same type,grade,and class. Use equipmcnt, <br /> e�ained mchnicians approved by pipe Manufacmrec's <br /> recommendations. Minimum ambient temperatuce shall be GO <br /> degrces Fahrenheit. Clean and dry joint before joining. <br /> 5. Connecdng Pipe of Diffecent MateriaL• Connect HDPE to ductile <br /> iron using flange fittings. HDPE shall have thcunal fusion-welded <br /> flangc adapter with bacl:ing ring and gaskct <br /> C. Inscallarion of Valves and Valve Boxes: <br /> 1. Upon deGvcry at job sice,open valves to picvent collecuon of wazer <br /> in valve. Clean valve intecior of fo:eign matter and inspect both in <br /> open and closed posirion prior co installadon. Scc calves and valve <br /> boxes plumb except where otherwise indicated on the drau�ngs,and <br /> place valve box over valve oc valve operator so valve box does not <br /> t�ansmit shock or stress to valvc. ��'rap valvcs, fittings, and ductile <br /> iron pipe with two layers of PR film extending minimum 3 feet each <br /> side of valve and i ttings. <br /> D. Rcaction Blocking(I'hmst Blocl:in�: <br /> 1. Purnish and insrell cast-in-place concrece reacrion blocl:ing at plugs, <br /> caps,tees,bends deflecring more than 11 degtees and where <br /> indicated on Drawings. Cast concmte direcdy against undismrbed <br /> ozs�o-io CONTRACT RECORD <br /> DOCUMENT <br />