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PORT OF EVERE7'T SECTION 02510 <br /> NORTH MARINA REDEVELOPMENT WATER DISTRIBUTION <br /> SHALLOW SOIL VCP CLEANUP AGTION <br /> H. Tcsc pipelines and connccdon piping in scctiuns betu�ecn temporary caps or <br /> valves by admitting water to thc line gradually to full tcst pressure. Testing <br /> against doscd valves will be permitted pzovided pressure differcnrial across <br /> valvc does not excecd zated wocking pzessure of valve. <br /> I. Hydrostatically test water mains and appurtenances 6 inch diametec and <br /> largcc ac 200 psi. Apply test pressure at low end of secrion of watec main <br /> being tested. Vent air in pipe prior co tesc <br /> �, Tesc by pressurizing main to zequiced ptessure,smp pump for I S minuc�s, <br /> and then pressurize m�in ro test prassuce again. Observe secrion being rested <br /> to detect any visible Ieakage. Use clean container foc holding watec for <br /> pcessurizing main being cested. Sterilize makeup wacec by adding chlorine to <br /> concenuation of 50 mg/1. Accurately detecmine water quantity required to <br /> restoce pressure b}'pumping thcough positive displacement water metec with <br /> a sweep unit hand:egistering l gallon per revolution. Use metcr approved <br /> by Ciry of Evecett. Test acceptability will be detecmined as Eollows: Comply <br /> with Ciry of Everett Standazds. Thcre shall not be an appreciable or abrupt <br /> loss in pressure during 15-minuu test period. <br /> K. Limit sections to be tesced normally to 1,600 feet. Engineer may zequize the <br /> first section on pipe,not less than 1,000 feet in]ength,be tested in ocda to <br /> qualify ccew and matecial. Do not continue pipe laying more than an <br /> additional 1,000 feet until 6cst section has been tested successfully. <br /> L. Perform hydiostatic tests on every complate secrion of water main between <br /> valves,or as directed by Engineer. Lach valve side shall withstand same test <br /> pressuce as pipe,wich no acave pcessuce in pipe secrion beyon�?closed <br /> valves. Make tests with h}'drant auxiliarp gate valves open and pressure <br /> against hpdrant valve. Ahc�cesc is completed,each gacc vah�e will be <br /> acceptable if there is no immediate loss oE p�essure on gage when pressure is <br /> applicd to valve being checked. Verify pressure differendal across vatve docs <br /> ❑o�exceed raced test pressuce of valve. <br /> M. VUhen hydrants are included with section of main pipe to be tested,condur <br /> tesdng in two sepuate tesu as follows: <br /> 7. Test No. l —\Water main gate�•alves and hydrant au�ciliary gz:e valves <br /> closed,with hydcant operating stem vah�es and hose ports wide open. <br /> 2. Tcst No. 2—\Vatec main gate valves and hydrant operaung stem <br /> valves righdy dosed but hydrant auxiliary gate valves and hose pores <br /> u�ide opcn. <br /> o2siais C(�N'fRACT RECORD <br /> DOCUMENT <br />