3703 RAILWAY AVE KIMBERLY CLARK 2018-01-01 MF Import

OS/29/02 10:18 FAl � OOJ wn�x nis�rx�v�rioN For fire and irrigation, the minimum level of backflow prevention required is a double check valve assembly. Fire servias shall have a double detec[or check vaive assembly. Ait gaps and reduced pressure bacl�low asseniblies aze required wherever a potential health hazazd exists. Tbe Ciry of Everett's har,kflow prevention program is based on WAC 248-54-285 and Everett Municipal Code 14.20. Plan approva] does not constitute approval of a backflow prevendon system. A sepatate backflow prevention system must ae obtained from the Utiliries staff prior to initiation of water service. 5-4 EXISTING iITILII'IES When utility services oc:upy the same space as the new water main, the connactor shall do all necessary excavation to fully expc�se such servir,es. The contractor shall protect said services and work azound them during excavating and pipe laying ope�.atioas. The con�accor shall be responsible for all damages to the services due to his operatiou and shall immediately notify the engineer and arrange for replacement of all damaged services. In the event of confliet, the con�actor shall remove and restore existing cateh basin connecdons, inlet conuections, drains, side sewers,..inlets, and other sewerage and drainage facilides. All restotarion shall be constructed to ciry scindards.;.Water main pipe shall be iastalled to clear mainline sewers and stotm drains. Tt is anticipated lhat thF: contractor will encounter private water service utilities (water service lines ruiuiing between die Cit� Wates Division uniun and private residences) during work operauons. Records of these urlities aze not naintained by [he city and will not be field focated by the City Water division. It shall be �he contractor's respons�iliry to asceriain the locatioa of and protect these private utilities from dama�e. Elds of abandoned watec main shall be plugged by fillivg with Class 3000 or Commercial Concrete for a minimum longitudiaal length of twelve (12) fnc6es. 5-5 FII2E kZ,O�'Y The fire flow requiremenrs are calculated by the Fire Depazanent. T'he U[iliries bivision will evaluate whether the existing sysu;m will meet that requirement or if systern improvements are required. Due to seasonal and otber vanatles associated with flow tests, these flow tests will not be used to measure the systen's ability to meet Uic fire :low requirements. 5-G P1PE AND F1T"i�VG,S FOI2 WATER MAINS 5-6.1 DESCRIPTId�N The work included in th_ following sections shall apply to tve constructiou of water distribution and fransmission mains and aFpurtenances for both tcmporary and perui,weni installation. 5-6,2 MATEIi7ALS All water main distriburicn piping shall be ductile iron pipe, cement lined, standard thic�ess Class 52, unless otheraise specified and shall conform to ffie standards of U5A Standard A-21.51 (AWWA G151), and be installed in accord;mce with the mani�facturer's recommendations. Any deviation from ttils policy mus� be approved by the iJtilities on tbe plans for the project. Galvanized 'uon pipe and iitrings, where specified shall be standard weight Schedule 40. Fittings shall be threaded malleable uon, g:ilvanized per USA Standard 816.3. STANDARDS 6.i Rev. 10/00