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:Solu ans: <br /> December 15, 2015 `= <br /> eft <br /> ES-4011.02 - <br /> Earth Solutions NW LLC <br /> Veritas Construction, Inc. <br /> 22819 Woodway Park Road ° Geotechnical Engineering <br /> Woodway, Washington 98020 o Construction Monitoring <br /> Environmental Sciences <br /> Attention: Ms. Ashley Previs <br /> Subject: Supplement Assessment—Lot 5 <br /> Proposed Vault Structures <br /> Soundview Business Center <br /> Everett, Washington <br /> Reference: Earth Solutions NW, LLC <br /> Stability Assessment <br /> Vault Structures <br /> ES-4011, dated October 6, 2015 <br /> Dear Ms. Previs: <br /> In accordance with your request, Earth Solutions NW, LLC (ESNW) has prepared this letter <br /> and supplement assessment of stability for Lot 5 of the Soundview Business Center property. <br /> Lot 5 is located to the west of the proposed development area, and is currently undeveloped <br /> and heavily forested. As part of the above referenced stability assessment for the proposed <br /> Soundview Business Center vault structures, the descending slope areas of Lot 5 were <br /> evaluated and considered with respect to overall site stability. Soils throughout Lot 5 are <br /> interpreted as dense and stable granular till deposits. Overall stability of the Lot 5 soils and <br /> descending slope area is characterized as good. Additionally, given recent episodes of heavy <br /> rain, a follow up reconnaissance of the descending slope area throughout Lot 5 was conducted <br /> on December 14, 2015. No indication of deep seated slope movements or shallow debris flow <br /> activity was observed. Soils near surface are comprised of relatively well drained granular till <br /> soils. The mature evergreen trees throughout the sloped areas exhibit vertical growth patterns, <br /> with no indication of severe arching indicative of slope movements. In this respect, and based <br /> on the prior stability analyses, Lot 5 is considered stable. If Lot 5 will be developed in the <br /> future, ESNW should prepare a formal geotechnical report specific to the proposed - <br /> development activity. - <br /> We trust the letter and supplement assessment meet your current needs. Should you require <br /> additional information, or have questions, please call. <br /> Sincerely, � �� . v Si j i / .�' <br /> EARTH SOLUTIONS NW, LLC , ' � f tf $ C,r� <br /> ems=°� 4io, f j ' <br /> Raymond A. Coglas, P.E. c '�Yi(F ' IIi .� <br /> Principal o. ) _�- `'�., ' • <br /> E.i. <br /> 1805 136th Place N.E.,Suite 201 ° Bellevue,W ° t•i �` `t� 7Y t° t'r $1 5)449-4711 <br /> '�-t.-Try <br /> __) <br /> r <br />