7622 RAINIER DR 2016-01-01 MF Import

1 ( � CASCADE GEOTECHNICAL ' June 10, 1991 Lyle Blank ' Job No. 9105-16G Page 3 ' dated May 20, 1991. tae noted that catch 6asins along Campus Pa[kway, Cascade Drive, Park Dtive and Rainier Drive appeared to discharge into the creek/drzinage ditch. We noted up to six (6) ' inches of standing water within the creek/drainage ditch. The vegetation noted adjacent to the creek/drainage ditch consistad of ' grasses, horse tails, bushes and small trees. ' A metal, chain-Link fence •das noted enclosing the site. Open grass areas werc noted to the rorth and south of the western lot. ' BOBBURFACE CONDITIONB ' The subsurface conditions were investigated by excavating thrce (3) backhoe test pits on May 29, 1991. The test pit locations, ' determined by our 9eologist and located by pacing relative to the I�roperty lines, are shown on the site plan presented in Appendix A. ' Detailed test pit logs and soil descriptions are presented in Appendix B. The soils were described in the field and were I classified using the Unified 8oils Classification System which is presented in Appendix C. ' The depths referred to in this report are relative to the existing ground surface at the tii^.e of our investigation. The test pits ' were terminated at depths of between four (4) and five (5) feet below the surface due to the density of the native soi.l. All of Ithe test pits were excavated within the western lot oniy. � We observed seven (7) to eighteen (18) inches of topsoil, consisting of black, silty sand with minor qravel and roots, in all of the tes� pits. Below the topsoil layer in Test Pit 1, we noted � three (7) feet of loose to dense, brown to gray, silty sand with some gravel (till) . At one and one-half (1 1/2) feet below the ' surface in 'Cest Pit 2, we found loose to dEnse, gray-brown, silty '