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Mr. Paul Korenovsky ES-6067 <br /> June 20, 2018 Page 4 <br /> Geologic Critical Areas <br /> Based on review of the referenced geologic critical areas map of the City of Everett, the subject <br /> site does not appear to be within or immediately adjacent to geologic critical areas. <br /> DISCUSSION AND RECOMMENDATIONS <br /> General <br /> Based on the results of our investigation, construction of the proposed residential short plat is <br /> feasible from a geotechnical standpoint. The primary geotechnical considerations associated <br /> with the proposed development include foundation support, slab-on-grade subgrade support, <br /> the suitability of using native soils as structural fill, and infiltration feasibility. <br /> The proposed residential structures can be constructed on conventional continuous and spread <br /> footing foundations bearing on competent native soil, recompacted native soil, or new structural <br /> fill placed directly on competent native soil. In general, competent native soil, suitable for <br /> support of the new foundations, will likely be encountered beginning at depths of about one to <br /> three feet bgs. Where loose or unsuitable soil conditions are exposed at foundation subgrade <br /> elevations, compaction of soils to the specifications of structural fill, or overexcavation and <br /> replacement with a suitable structural fill material, will be necessary. <br /> Given the cemented nature and relatively high fines contents of the glacial till deposits across <br /> the site, large-scale (or full) infiltration is not feasible from a geotechnical standpoint. Limited <br /> infiltration with incorporation of overflow provisions is feasible from a geotechnical standpoint. if <br /> overflow provisions cannot be incorporated into final design, limited infiltration should not be <br /> considered feasible. <br /> This study has been prepared for the exclusive use of Mr. Paul Korenovsky and his <br /> representatives. A warranty is neither expressed nor implied. This study has been prepared in <br /> a manner consistent with the level of care and skill ordinarily exercised by other members of the <br /> profession currently practicing under similar conditions in this area. <br /> Site Preparation and Earthwork <br /> Initial site preparation activities will consist of installing temporary erosion control measures, <br /> establishing grading limits, and performing site clearing and site stripping. Subsequent <br /> earthwork procedures will involve grading and related infrastructure improvements. <br /> • <br /> Earth Solutions NW,LLC <br />