11632 EVERGREEN WAY BASE FILE 2018-01-01 MF Import

Proposed Retail Develo�ment J-1443 � - ll 2'�Street and Hwy. 99 Febmary 26,2004 i Everett,Washington Pa::= �� � Climate Data According to the U.S. Depaztment of Coaunerce, Climatic Atlas of the United Statcs, , 1993, the project site lies within the Pugct Sound Lowlands Region of Washington. [vfean monthly rainfall varies from a low of 0.96 inches in July to a high of 5.56 inches in December. Bctween November and Mazch, there are about LO days per month where 0.01 inches or more of ' rainfall occurs. Nornial daily min:mum tempetatures are above fieenng throughout the year. Mean annual total snowfall is about 12 inches. Weather data from the Westem Region Climate Center(WRCC) for Everett, Washington (closest to the site) varied slightly from the ClimaUc Atlas and likely represents a more accurate representation of the local weathec The greatest mean monthly snowfall occurs in January and averages about 2.5 inchcs. The monttily average minimum temperatures are generally above freezing although sustained freezing temperatures can be expected between December and March. �I Average monthly rainfall and snowfall amounts can be greatly exceeded as can be seen in the encloscd weatherdata presented in Appendix D. The mean total precipitation for each month at the Everett wcather station is: January: 4.56 in. July: 1.22 in. February: 3.51 in. August: 1.36 in. ( March: 3.62 in. September: 2.04 in. April: 2.69 in. October: 3.44 in. May 2.34 in. November: 4.91 in. June: 2.19 in. December: 5.09 in. The WRCC Monthly Total Snowfall, Monthly Total Precipitation, Average and Average hlinimum Temperatures,and Monthly Climate Summary data aze also presented in Appendix D. CONCLUSIONS AND RECOMMENDATIONS In our opinion,development as proposed appears feasiblc from a geotechnical enginrering standpoint utilizing shallo�v, isolated interior and perimeter continuous footings and slab-on-grade lioors. In order to provide uniform support, we recommend that all foundadon elements and floor slabs be supported on undisturbed mcdium dense to dense native soils or or. structural fill that is compactcd to a minimum of 95 percent of lhe modified Proctor maximutn dry density. Under no circumstances should existing]nose fill soils be left in place within the building pad. Site Preparation The dcsign recommendations presented in this report are based on the observcd soil conditions and on thc assumption that earthwork for site grading, utilities, foundations, floor slabs, loading dock walls, and pavements will bc monitored by a representative of Zipper Zeman , Associates, Inc. ' , J-1443,022G04 �u '