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Halvorson, Beach & Bower, Inc. <br />Mechanical Engineers <br />1833 NORTH tOSTH STREcT, SUITE �O5 <br />SEAT7LE, VdASHINGTON 90133�1ZW) �Z�"�501 <br />Newland Constrvetion Co. <br />p, 0. Hox 958 <br />EVerett, WA 98206 <br />pe: Everett Federal SavinBs and <br />Attn: Steve Underwood <br />C�C:1..=!' <br />... �.... �� �., � r� <br />, I � � 'i <br />Febrvury <<, 1986 <br />Job No. 86-12 <br />/� U � /��.2C� �. <br />lnan - Sanitary Sewer Investigation <br />Gentlemen: <br />p �g86 signed by 'rr'Y <br />January 30� 1986r and also <br />gjNe�)p�I9made as iteelnvestlgatlonroneWednesday, Ja�ary � <br />contacted the City of Everett to verity certa7n sanita�y/storm seuer conditior.s. <br />'ihe folloaing �s noted: oa�o�e <br />�, The sever manhole at the iandrstorm�sewerFsystemdwithlang8tirichewtletgs"�r <br />of a eombination sanitary except <br />ma7n flowin8 north under ibYL Avenue. This manhole receives all the san arY <br />deck draln (serving app�X• 2�050 sq ft at the aortheast <br />and storm dra���arking the E�erett Federal Savings and inan facili y, <br />for �ne rooftop p <br />corner) �ich diseharBeThistmanholeealsou�eceives theestodrrm+ater dischargegfrom <br />wall of the bulldinB• <br />Aefer to the attached rouBh sketch. <br />four city curb inlets which collect the surface drainage from Wall St.reet ��-o y <br />to Koyt) and B�yt Avenue (pacitic to Wall)• ,,�ich is the same <br />as the inlet invert elevation fTom E.C.S.&L. (per origlnal drawinB9 �nnd should <br />z, 'itie wtlet invert elevation (flowline) of hhnhole 5 i9 Z�8•� ' <br />be verif�• tNo Here <br />b ement floor cleanouts - only <br />3 <br />u <br />The original �rW�Bk throughCor four as <br />noted during �h�e �om in <br />p backrrater valve has bee9e��tleavingdtheetuildinge II'mi9tgewe� {°ain is <br />the main 4-ineh sanitary er level f`�xtures. <br />ment and upp <br />connected t.o the base _ <br />ed dry or semi�lry spell. ('�h1s is the case eriodicallyreas <br />5, It uas stated that most of the sewer backups have occured during the first go <br />rain after a prolong the City has a schedule vhere they p <br />of the City aLso.) Hovever� <br />clean out the cate�htb�}7e �nhaoleseandVseNer linesarg�ifh vetcor.tacted tar''Yag <br />Well as flushing p„Partment and Tom 'Rietford, Utilitles En&ineer £or <br />Callahan,U�litiesBDivis on.) <br />the CSty <br />`c <br />-� <br />c� <br />m <br />.. .. <br />� T� <br />.. -� <br />v� x <br />m <br />v <br />c� <br />m� <br />-i c <br />03 <br />m <br />-i z <br />x -� <br />m <br />oz <br />r i <br />., .. <br />-i v, <br />-� <br />T <br />O D <br />--i m <br />m .- <br />� <br />nm <br />c in <br />m� <br />zn <br />--i r <br />m <br />n <br />� <br />� <br />v <br />� <br />c <br />.'�, <br />r <br />r� <br />