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Stormwater360� Size and Cost Estimate <br /> Mountain View Warehouse— Stormwater Treatment System <br /> Everett, WA <br /> Information provided: <br /> • Tolal contributing area = 1.31 acres <br /> • Impervious area = 0.79 acres <br /> • Water quali�y ilow, Qwq = 0.17 cfs <br /> • Peak hydraulic tlow rate, Q�,,,,,� = 0.83 cis (100 yr) <br /> i • Presiding agency = Cily of Everett <br /> Assumptions: <br /> I • Media = ZPG cartridces <br /> • Drop required from inlel to outlel = 2.3' rninimum <br /> I Size a��d r,ost estimates: <br /> The StormFilter is a (low-based system, and iherefore, is sized by calcula�ing tl�e wa�er qualiry flow rate associated <br /> � with ihe design storm. The water quality fiow rate was provided by the engineer to be 0.17 cis. To accommodate this <br /> ' i flow rate, Stormwater360 recommends using a 72" precast manhole StormFiiter with 6 carlridges (see attached <br /> I delaii). The estimated cost o(this system is$19,500,complete and delivered to the job site. <br /> For preUeatmenl to the StormFilter, S�ormwater360 recommends using a Vortechs 1000 (see attached detail). <br /> I The estimated cost of this system is�13,300, complete and delivered to lhe job site. <br /> This estimate assumes U�at the vauits are 6 feet deep. The final system costs will depend on the actual deplh <br /> oi the units and whether extras like doors rather than castings are specified. The contraclor is responsible for <br /> selting �he SlormFilter and Jortechs vaulls and all exlemal plumbing. <br /> i <br /> I <br /> Tr '��.:derci,ithrs(orrn.i.�� .�i,irstr�, 5�,,v ,�,.�.[�.: ��.n..��;;;� �Il. �. ,n,il�;cr.hnicc. Inc. h3veundedasSfornuvate:.360"' -tne <br /> � c rr/.� i ,� p,o�.�lai (s � r� ,:�e�a� I��� ns l4'rth �n un�uralle,�cd rica7urt Ine and unmalched cuslomer SupAort foem under <br /> , � o� ,brc:� tito r,,�.;l�. i�'h��.,thc uc,f, i�r„ot�,�m!o rnaer your� aterqu- 'lly noals. <br /> www.stormwater360.com <br /> I _.. <br /> L ist: West IAid�Allanl¢: <br /> �.-�- � �'.�c:, .!..C:C-; �L�� P":C�«. V,m',Po�'��•. 07 9.-]:5 7020 Troy H�II Dnve.5���s A-0,EiknOge.610 2t075 <br /> r i ..- .0 ... . __._ _ Fl`�.�» J L:, F . 7c1 f"'i Teii-Iree BS5�;+633�8 Fa.�.Bbb-3'E5`vll <br /> � IC�;1:'�:�J�C�i <br />