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� y <br /> LIU & ASSOCIATES, INC. <br /> Geotechnical Engineering Engineering Geology Earth Science <br /> March 22, 2017 <br /> Mr. John Mustach <br /> Mustach Land Developmcnt, LLC <br /> P. O. Box 12176 <br /> Mill Creek, WA 98082 <br /> Dear Mr. Mustach: <br /> Subject: Geotechnical Review of Design Plans <br /> Single-Family Residence <br /> 4125 Grand Avenue <br /> Everett, Washington <br /> L&A Job No. 17-034 <br /> We have completed a geotechnical review of the design plans for the subject project. We <br /> recommend that the following notes be added and design detailed be corrected on the <br /> design plans: <br /> 1. Add a note to say that "The recommendations in the Geotechnical Report, dated <br /> 3/18/2017, prepared by Liu & Associates, Inc. for this projcct, should be complied <br /> with during construction. <br /> 2. Add a note to say "Fill and peat deposit should be removed down to dense advance <br /> outwash sand soil with ovei•-excavation backfilled with structural fill, on which <br /> footing foundations, on-grade floor slabs, and driveway are to be constructed, per <br /> recommendations in Liu& Associates, 3/18/2017 geotechnical report." <br /> 3. The gravel fill enclosing the footing drain pipes should be extended upward on the <br /> back of the basement walls to within about 12 to 16 inches of finish grade to ensure <br /> basement walls will not be subjected to hydrostatic pressure. <br /> 19213 Kenlake Place NE • Kenmore, Washington 98028 <br /> Phone (425) 483-9134 • Fax (425) 486-2746 <br /> r� . <br />