3430 SEVENICH DR Geotech Report 2018-01-02 MF Import

— Mr. Bill Ruck�r W-8386 25 SaPtsmber 1992 Pape 10 — Roor SuPPoR Criari� Ths subpnde for tl�b-on-pnde floon should be prcparod in accordance with the pr�viout sks _ prapandon rocommand�tion�. The slab-on-pr�de should be founded on prerolled or compacted nativs pround w structunl �ill compsctsd m 80 percsnt density IASTM:D 15571. Ws rocommend that ths floor slab bs underlafn by a 6-inch thickness of weshed praval, crushed rock, or pea pravel conaininp ^ Isu than 6 psresnt fines based on that soil haction pauinp ths U.S. No. 4 Sieve. This I�yar oi pranular fill is intended to serve a� � capill�ry break and workin0 surtacs. An imperviout moisture — b�rriar should also be plaeed bensath the slab. _ T�mponry �nd P�rmwnnt Cut Slopa� Tempor�ry tlops st�bility is a function of many faetors, includinp the followinp: 1. tha presenca and abundanca of proundwater; 2. ths type �nd density of the vorious soil strata; '" 3. the depth of cut; ' 4. surchvpe loadinps �djacent to the exeavation; 5. ths IsnOth of time the exeavation remains open. • ' „� It is excssdin0ly difficuh undar the variable circumsune¢s to pre-establish a safs and ( , w 'maintenanca•frse' temporary cut slops anple. Tharefore, it should be the reepontibility of the contractor to m�intain safe slope confipuration: since the contractor ic continuously at Me job site, � able to observe ths neture and eondition of the cut slopes, and able to monitor the subsurfaee � m�terialt and ptoundwater conditione ancountered. At this particular site, we anticipate the2 ths ' proundwater eonditions may sipnific�ntly influence temporary eut alope a�pies. We recommend usinp ' meaeures such ae berms at the tope of slopes and drapinp temporary slopes with ptastie to protaM the slopes hom the elemenu and minimize slouphinp and erosion durin0 wet weather or wet sits � eonditiona. We do not recommend vertical slopes or cuu hipher than 4 feet if worker access is � neceasary. The cuts should be�dequetely sloped or supported to prevent injury to personnel from local slouphinp and cpaliinp. The excavation should conform to applicable Federal, State, and local ^ re0ulations. For preliminary pla�ninp purposes,we estimate that a temporary slope inciination of about 1H:7V to 1.5H:1V (Ho��eonial:Verticap may be feasible within the native site soils, within the � recommended buildinp area indicated on Fipure 1. We recommend minimizinp excavations and ' earthwork outside the recommended buildinp area. All fillinp and excavations outside the " recommended buildinp area should be reviewed by a peotechnical enpineer prior to construction. ,w L�� A G R P. Ear,;;a Erviror�mental Group