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A4ountain Jiew Warehouse <br /> Stormwater Site Plan <br /> V) Analysis and Design of Required Runoff Control BMPs <br /> Detention Facility <br /> The developed site is not required ro provide detention, as a regional detention facil�ty <br /> called the Mountain View Pond was construcled for the entire the Mountain V,or� <br /> Business Center. Re(er to lhe "CSR Associaled Boulevard Slonnwater Site Plan" <br /> prepared by Reid Middlelon, dated J�me 2001, in the Appendix. <br /> The regional detention facility was design assuming thal impervious cover would be <br /> placed over 90% o( the business park once developed. Developmenl of the Mount�:in <br /> View Warehouse site will include impervious cover on only 77_°0 0(the developed site. <br /> Water Quality Treatment <br /> Per the aforemenlioned reporl, "each oF the commercial parcels will provide lheir own <br /> on-site water quality treatmenL Therefore, the developed sile is required to provide a <br /> storrriwaler quality heatment syslem per the City of Everelt Stormvealer M1.4anagement <br /> Manual (January 1997). <br /> Pavement and landscape runoif will be treatzd in a StormFilter water quality tank <br /> preceded by a Vortechs pretreatm.;nt vauil prior to discharging to the stormwater <br /> conveyance system in Industry SUeeL (Roof runotf will be collected and conveyed <br /> directly to the slormwater conveyance systern in Industry Street.) These water quality <br /> facility are designed per the City oi Everelfs cunent design policies for use of Sh11 <br /> StormFilters for stormwater trealment. <br /> Specifications (or the SlormFilter tGnk and Vortechs va��ll have b�en provided oy <br /> Stormwaler 360 and are included in both Ihe Appendix af lhis report and on the <br /> construction drawings. The propesed StormFiller tank wiil be a T. " precast manhole <br /> with 6 cariridges, each capable of a 15 gpm iloa� rafe. The proposed Vort��chs vaull has <br /> a design flow rale of 10.9 gpm/s(. <br /> Stormwater Conveyance <br /> All pavement and new roo( runoff v�ill be collected in a proposed slormv;ater conveyanc� <br /> syslem ihat ties into an existiric slorm conveyance system located along the frontage o( <br /> the sile (Industry StreeO. <br /> � <br /> � 0�1-035 Tri� B�ueuNe GRoua PageG <br />