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i <br /> ( NELSON GEOTECHNICAL <br /> � � ,. A ASSOCIATES, INC. <br /> I GEOTECHNICAL ENGINEERS & GEOL,OGISTS <br /> Alnin OITcc Gnginccring-Gculogy Brmch <br /> 1731 I — 135'h Avc NI:.A-500 437 l;.Pcnny Itoad <br /> I R'ondin�•illc.�1'A 9R072 \Vcnntchcc.\VA 98801 <br /> (425)�1RG-I(,69•PAX(d25)•I8L2510 (509)G6i4G9C>�FAX(509)665-7692 <br /> p12i)337J6G9 Snohomish Coumy <br /> I <br /> Pcbruary 21, 300A <br /> I <br /> ( Mr. Douo Flcuingcr <br /> 303 G Pikc St, Suitc C 13 <br /> ScatUc, 1Vashington 9812? <br /> 1 Gcolcchnical Lnginecring Lvaluation <br /> 1G25 Enpland Avcnuc <br /> Evcrett, Nashington <br /> INGA �ilcNo. 7RIG08 <br /> Dcar Mr. 1lctiingcr. <br /> I \Vc arc plcascd to submit this rcport titicd "Gcotcchnica! I:nginccring Lvaluation— 1625 Gngland Avenuc <br /> — Gvcrctt, 1Vashington." '1'his rcport sununarizes our e�ploration of thc surl'ace�nd subsurfnce conditions <br /> I within tlic projcct sitc and providcs our opinions and recommendations regarding sitc dcvclopmcnt. Our <br /> scrvices�vcre complered in gaural accordancc���ith thc scrvices agreemen[ siencd by you on Jnnuary 29, <br /> 2008. <br /> ITlic property includcs gcntic to stccp slopes overlooking neighboring residenccs and thc PuSct Sound to <br /> thu north. A building pad has been excavntcd for a residencc. Sand is c�posed in tlic cut along thc <br /> �vcstern sidc of the property. Ne Imvc becn informcd that thc planncd dcvclopmen[ in:ludcs a multi- <br /> story, singlc-family residcncc. Stonnwatcr handling plans indudc a dry wcll for on-sitc infiltrntions. <br /> Nc cvaluatcd subsurfacc conditions on Janunry 31,2008 with two hm�d augcr esplontions in the planncd <br /> foundation arca. Thc hand auger explorntions c�poscd mcdium dcnsc to densc sm�d with trace amounts <br /> of gravcl and silt to a dcplh of about cight fcet. �Vc intcrprctcd thc soil to bc nati��c glacial advancc <br /> outwash. 1Ve did not observc any ground�vater seepage in thc foirodation c�cavation or in our <br /> csplorations during our sitc visit. <br /> It is our opinion, Gom a gcotechnical standpoint, �hat thc planned sitc dcvelopment is fcasible provided <br /> tliat ihc rccommcndations in the attachcd report are incorporatcd into project plans. In gencral, wc <br /> rcconuncnd that tlic foundation rest on n�tivc, undisturbcd soils. Thc footing linc closcst to the top of thc <br /> steep slope to thc nor�h should be cmbedded a mininnim of four fect into nati��c ground for long-term <br /> landslide protcction. Stormwatcr inflltration into sitc soils should bc fcasiblc using a dry wcll backfilled <br /> �cith �cashed rock, provided that tlie ��ell is setback a minimum ot'S0 feet from the slope and located <br /> I <br /> I ��� <br />