Laserfiche WebLink
� <br /> ' <br /> SHANNON F�WII-SON.INC. <br /> ' ModiBed I.and <br /> 5.5 <br /> Igeve�al extensive amas have been significantly modified by excavation and fllling on the east <br /> I slupe. It is our underscanding that this wns the result of a borrow operation. Very steep <br /> bluffs comprised of dll and/or advance outwash were left in seveial areas, as mazked on ! <br /> IFiguce 1. They ra�8e in height fmm 10 w 40 feet• <br /> It appears that some portions of the borrow pit were bacl�lled with soil and organic debris <br /> Isuch as stumps. While it is difficult to ascertain tt►e lwundaries of the 811 areas, they aie � <br /> shown appmzimately on Figure 1. The density of the fill materials is not known• O►►IY the ( <br /> Ilarger amas of fllled land identifiable by wpoBraPhic expcession and acposu�e have been i <br /> shown; smaller 811s likely acist in the area. I <br /> I <br /> I6,p �[]SSURFACE EXPi ORATIONS <br /> Subsurface conditions at the wp of the subject site were uplored by drilling 5 borings (B-1 <br /> Ithmugh B-5) and excavating 21 test pits (TP-1 through 'IP-21) at the locations shown on <br /> Figurc 1. The locations of most of the borings and test pits were staked in the 6eld by <br /> , surveying by 'hiad Associates• W1�ece necessiry, some of the locations were changed in the <br /> field by our rep�esentaUve� and t1►r, new locadons were taped off or paced fmm the nearest <br /> � stake; these locadons should be considered approaimate. Elevations of explorations, as <br /> note� on the boring and test pit logs in Appendiz A, were estimated from 2-foot contour <br /> I maps prwided by 'IYiad Associates. Observadon wells were installed in borings B-4 and <br /> I B-5 to moniWr groundNater levels. The drilling and test pit procednres are P�esented in <br /> Appendix A. The boring logs arc pnesented on Figures A-1 through A 5, and the test pit <br /> Ilogs are presented on Figures A 6 through A 26 in Appendix A. <br /> ( All samples retrieved from the borings and test pits were classified in the field, sealed in jazs, <br /> and returned to our labocatory in Seattle for further evaluadon and tesdng. The test proceduces <br /> Iand results are presented in Appendix B. <br /> l <br /> I W-6693-01 <br /> 6 <br /> � <br />