11419 19TH AVE SE Geotech Report 2018-01-02 MF Import

1� ' � 1.2 AuU�orization, continucd senices have been perfonned in acccrdauce with generally accepted geotechnical engineering � geology practices in effect in this area at the time our report �vas prepared. No other ��arranty, expressed or implied, is made. Our obse�:ations, findings, and opinions are a means to identify and reduce the inherent risks to d�e owner. � 2.0 Projec�t and Site Description � This report w�s completed with an understanding of the project based on a preliminary site plan completed by Finley Architects dated January 23, 1997. Present plans call for construction of four new, one story Concrete Masonry Unit (CMin buildings with sfab on gade construction, that will � enclose 30,000 square feet of tloor space on the approximately 120,000 square foot si[e. Pinished (loor elevations were identified on the preliminary site plan. � The subject property is located at 11419— 19'� Avenue SE in Everett, Washington and is comprised of an existing commercial lot with two buildings (11415 and 11419 (9'h Avenue SE ) and two adjacent residential lots. The existing commercial and residential structures aze to be razed prior to � construction. Tlie proposed site is roughly rectangulzr with the S W comer protrudine out into an existing pond. The area around the existing commercial and residential structures is relatively level. � T1te southern poRion of the site gendy slopes towazd the pond from the esisting residential structures, and the N.E. corner, which is undeveloped, rises approximately 12 feet �truting at the edge of the existing pavement. � At Bie time of our exploration the commercial area of the site was paved with asphalt. Just east of the commercial area some large trees, low shrubs and blackberry vines covered the sloped � undeveloped area. The vacant residential lots were landscaped with grass and trees. The•pond w�as surrounded with small trees, wedand vegetation, brambles and blackberrv vines. � 3.0 Subsurface Exploration Our field study included excavating eleven exploration pits (EP) to gain subsurf��:a soil and ground � �vater information about tl�e site. The various rypes of sedimen.s, as well as the depths where characteristics of the sediments changed, are indicated on the exploration logs presented in the Appendix. The depths indicated on the logs where conditions change migh[ represent gradational � variations between sediment [ypes in the field. The soil descriptions presented on the exploration pit losc in [he Appendix are in general accordance with ASTM: D2488. Our explorations were approximately located in the field based on the previously referenced site plan and pacing from � known site features. The conc!usions and recommendations presented in this report are based on the eleven exploration � pits completed for this study. The number, location, and depth of the explorations were completed within site and budgetary constraints. Because of the nature of exploratory work below ground, � extrapolation of subsurface conditions benveen field esplorations is necessary. It should be noted � ��b �I t MAYES TESTING ENGINEERS