1600 121ST ST SE 2016-01-01 MF Import

I�cccmhcr 75 199Z Z 92'i-1184 2. PROI'OSCll DGVGLOPMCNT We undcrsland (he proposed devclopmenl tvill consisl of nwnerous tvood-(nmc, mulli-slory residenlial slructures, a recreafion building, arcessory ulility inslallalions, and paved access roadways as shown on figure 2. 13ased on lhc Novcmbcr 3, 1992 rradin� plan prc��ared by Group Four, Inc. Ihc gencral carlh�vork tvill involve fills on Ihe ordcr of 0 l0 4(eel. Six of Ihc slrudures locafed along Ihe west edge of Ihe properly tvill be conslrucled tvilh daylight parking garages, requiring excavalions on Ihe order of nine fecl bclow existing grades. 3. I�IGI.11 GXI'I.OIiA7'ION 31 Subsurfacc lxploralinns The subsurface condilians were explored on November 25; 19)2, T'he exploralion work consisled of excavaling 13 test pils lo a maximum deplh of 13.3 IceL "1'hc approximalc localio�is of Ihe tcsl pits are shown on �igurc 2 and summary logs of Ihe tesl pils are prosented in Appendix A. A prcvious sile invesligalion tv�s coniplcled in 1987. 'Phc localions of Icsl exploralions complcled durin� Ihc 1987 invcsligafion arc also sho�vn on Pigurc Z:in�l sununary logs are presenled in Appendix B. Tlie Iesl exploralEons were localed in lhe ficld by p:icing dis�ances fruni exisling landnnrks such as Ihe properly mrners, exisling buildings ancl lopo�;raphic/geomorphic fealures and slioidd bc considered approximalc. Glevalions �vcre inlcrpolated (rom lhe Conceplual Silc I'lan prepareJ by Croup Pour Inc., dated November 3, 1992, 7'he lesl pils were excavaled using a rubber-lired backhoe provided by a local excavaling mnlr�clar under subconlrecl lo our firnr Dislwbed bul rrpresenlalive Lulk sam��les of Ilie soils encounlcred in Ihe exploralions were rclrieved in Ihc (icld. All samples wem sealed in plastic jars lo prevenl moisture loss and relurned lo our labonlory for furthcr examinalion. 7'he soil sam��les tvere classi(ied in accardance �vilh the Uni(ied Soil Chssificalion Syslem tvhich is presented on the Soil Descriplion Index in Appendix A. An engineer (rom our (irm examined and logged Ilie soil condilions observed in e�cli of Ihe Icsl pil exploralions. Pcrlinenl informalion inchiding Jeplhs, slreligra�,;iy, soil engincering chareclerislics, anJ groundwater occurrence were recorded. The slralificalion deplhs inJicated on Ihe summary lo�s represen; fhc ap��roximale boundarics behveen soil lypes. T'he soil and ground�valer condilions were Ihose recorded (or llie localion and dales indicaled a��cl may not necessarily represent Ihose of olher limes or localions. The Iesl pils tvere backfilled tvilh Ihe excavated spoils and tamprd tvilh Ihe backhue buckel at tlie complelion of �ogging. '1'his backfill should nol bc consiJeroJ slruclural and may sclllc slighlly over lime. Goldcr Associafes