3121 8TH ST AB 2016-01-01 MF Import

Junc 1, 200R Duplex Building L&n Job No. R.�O» Pagc 4 practically impervious to stormwatcr inliltmtion. IC rcmains un�listmbcd xnd wcll-draincd. thc Gesh till soils can providc exce(Ient found�tion support to strucWres �,��ith litlie setUement expccted. SOIL COND17'IONS Subsurface conditions of thc sitc �vcrc cxplored with four tcst pits excavated on the site. 7�he test pits wcre excavated on May 21, 2008, with a rubber-tire backhoe to depths fcom SA to 8.5 feet. The approximatc locations of thc test pits are shown on Plate 2- Site and Gxpluration Location Plan. "I'he test pits wcre locatcd with either a tape mexsure or by visual reference to existing topographic fcatures in the fieid and on the topographic survey map, and thcir locations should be considcrc� as only accuiatc to thc mrisuring mcthod uscd. A gentechnicai engineer I�rom our oflice was present during subsurfaa. exploration, who examined the soil and gcologic concitions encounicred and completed logs of test pits. Soil samples obtained �rom cach soil layer in the test pits were visually classified in general accordance with United Soil C�assification System, a copy of' which is presented on Plate 3. Detailed descriptions of soils cncountered durine site exploration are presented in test pit logs on Plates 4 and 5. The test pits generally encountered a laycr of d�uk-bro�in, loose, organic topsoil, 1'rom 1.3 to 2.5 fcet thick, manUing thc site, except at Test Pit 1(located near the southwest comer of the site) where loose lill of 1.5 1'ee[ thick was found ovedying a layer of relic topsoiL The topsoil is underlain by �a layer of weathercd soils of brown to }'ellowish-broHm, medium-dense, silty fine sand with a tracc of gravel, from about 2.2 to 4.5 feet thick. Underiying the layer of weathered soils to thc depths explored is a light-gray fresh tili deposit of very-dense, weakl��-cemented, silty linc sanJ ��ith a trace to some gravcl or dcnse to vcry-stiff, silty fine sand to fine sandy silt. LIU & ASSOCIATES, INC.