10008 25TH AVE SE 2016-01-01 MF Import

_ . . � � �'� �: �� -� � 2.Q EXISTING SITE CONDITIONS � I The following sections summarize existing surface and subsurface conditions observed during �, our May l5, 2002 site visit,and subsudace conditions observed during the 1989 explorations. ,' I l 2.1 SURFACE CONDITIONS . ! � The subject property is generally level with a slight slope from the northwest to the southeast. � The propeRy is approximately rectangular and extends 105 ft along IOOth Street SE to the north,and 125 R along 25th Avenue SE to the east. Site vegetation includes coniferous and deciduous trees, with dense landscape vegetation around the perimeter. The center of the site is occupied by the existing building and il asphalt-paved parking areas. The property has a 6-ft high chaiu-link fence around the perimeter. Access � i to the property is by a driveway off of 25th Avenue SE. The area of the proposed additions aze generally I within asphalt-paved areas. � 2.2 SUBSURFACE CONDITIONS , The test pits completed in 1989 indicated a soil profile of fill overlying unconso(idated post- lacia(de sds overl ❑ lacial ti1L Soil conditions at the site are enerall consistent with the ma d � B P� � , Y� S S 8 Y PPe I geology (Minnard 19851. Fill soils were typically 1 to 2 ft thick, and described as loose, brown to red- brown, sandy, gravelly silt. Underlying the fill was an unconsolidated post-glacial deposit described zs i brown to reddish brown, loose, sandy,gravelly silt. The unconsolidated post-glacial deposit was l to 3 ft � thick and was reportedly observed in test pits TP-I and TP-3. The lowest soil unit observed in the test pits was glacial till. The till unit was described as light gray, dense to very dense, sandy silt, silty sand, and sandy gravel, and extended to the bottom of the excavations. Grounflwater seepage was not � � encountered during excavation of the 1989 test pits. Copies of the summary logs of the test pits from the � previous explorations are provided in Appendix A. On May 15, 2002 a represenlative of Landau Associates eacavated two borings(HA-I and HA-2) ; slightly outside of the footprint of the proposed building additions. The borings were completed to depths of 3'/z and 1'/. ft below the existing site grad�s using a hand-auger. Representative soil samples from the ; explorations were taken to Landau Associates soil labo�atory for further classification and moisture content detertnination. The approximate locations of borings HA-I and HA-2 are shown on Figure 2. Soil encountered in the borings was classified in accordance with the classification system presented on Figure 3. Summary logs of the conditions encountered are presented on Figure 4. ; 5/78/021WROJECTtO1W050101EASTMONT flPT.pp� Z-� LANpAUASSOCIATES �