1988-10-05 Soil Compaction Test Report

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88-609 _2_ Dctnber 5, 1989 Landform, Inc. After the excavation tractor excavated the level 7•++rr of the proposed home, a. Ori in the elevations .».s found. The excavation was apt x u,, -el y 3 feet lower t~r,ximatelye3 on the plan. This r iced proposed eme lan eleof vation. feet of soil to reatt the proposed p EXCAVATION OBSEF.VATIO. ;,t the time of the ervation, a bulldozer had removed soils in the area of nroposed lower tnatelye 2 to home. On the south side of ]come, app in soil had beenremoved. Nextto therom the lower mmon evelwrequiredratcut the slab -on -grade area of approximately 10 fee.. y 2 to 3 feet larger than the The excavation was apprcc etel prosouth of posed area of the i0�e. The excavation limits were locatedfromsoutheast an offset . building c,r er that Was set 15 feet the e of the The was at bottom Of eThisa elevation txcavtion at hewasmdeterminedb with observation excavation contractor's survey instrument and level d The bench mark used was the stake at the northwest garage corner. An assumed elevation of 1024.5 was assigned to this location. d in ils be ace and uniformly recommended backfill We c the mpactedwith aovibr torylcompactor.hin lifts COMPACTION TESTING Three compaction tests were taken on September 15, 1988. the The testsnot meet id requirementdof 95% f standards Proctord density. compaction mended the area be recompacted and retested. to bly The techniciAn wpv-, re rested Theearchitecton siteawfoot. Thin ai5 on xsiteeat 9:30 a.m. cn a u:•s indicated that the floor grade in the that time. t. vat oflowered 1 u1 foot ofufillethat was placed on September 15. remo- a after th rT.11ac. technician was moval of the 1 footeofesoil,tan3 he areao retest ewas erecompactede Awk