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u I a rte1049 Nichols Drive,Rocklin CA 95765 <br /> _. <br /> A ASSOCIATES;INC. <br /> Phone:916.626.5577 <br /> FAX:916.626.5533 <br /> May 23, 2022 <br /> File No. 4861 <br /> San Joaquin County— Environmental Health Department <br /> Retaining Wall 1868 East Hazelton Avenue <br /> Design Stockton, CA 95205 <br /> PROJECT: 808 ZEPHYR STREET - STOCKTON <br /> Re: Work Description <br /> Shoring Dear San Joaquin County: <br /> Design <br /> We are writing this letter as a work description to obtain a soil boring permit for <br /> the project at 808 Zephyr Street in Stockton. The project proposes a metal <br /> warehouse/office building with associated pavement. <br /> Geotech Drilling: <br /> Reports Gularte and Associates are contracted to perform three exploratory borings for <br /> the purposes of writing a Geotechnical Report for the project. The borings will be <br /> 4" in diameter and will be drilled with solid flight augers. These borings will be <br /> used to retrieve SPT and CAL-MOD soil samples. All four of the borings will be <br /> drilled to depths of 25 feet. The borings' locations can be seen on the attached <br /> site map. <br /> Phase I ESA <br /> Grouting: <br /> Once the desired depths of the borings are met the holes will be grouted. A tremie <br /> pipe will be placed to the bottom of the borehole to avoid segregation or dilution <br /> of grout. The grout will be pumped/poured through the tremie pipe releasing the <br /> Soil <br /> grout at the bottom of the bore hole. The tremie pipe will be submerged in the compaction slurry at all times during slurry Placement. The tremie pipe will be raised slowly <br /> as grout is introduced to the casing or hole. The placing of grout will be continuous <br /> until grout appears at the top of the bore hole, at which time the tremie pipe will <br /> be removed. <br /> Special Respectfully, <br /> Inspections Gularte $Associates, Inc. <br /> 6 q"qw <br /> Brayden Hungrige, EIT No. 169283 <br /> Staff Engineer <br />