2106 GRAND AVE 2016-01-01 MF Import

i GEOTE{HINGI ENGINEERING STUDY E-12863 IMarch 17,2007 I Underlying the fill at the locations of Boring B-2, medium dense to dense silty sand (SM) was encountered to the maximum exploration depth of 21.5 feet below grade. � Underlying the fill at the hand auger locations, medium dense, poo�ly grad�d sand with siit (SP-SM) was encountered to the maximum exploration depth oi 5 feet below grade. � Geologic Map Review Based on our review of the Coastal Zone Atlas for Washington, the site is mapped as glacial � till (Qvt). The silts and sands encountered in the borings are not representative of glacial till soils. The soils encountered better represent glacial outwash or ice contact deposits. IGroundwater No groundwater seepage was encountered in the borings or hand auger holes at the time of I our exploration. However, the conlractor should be aware that groundwater levels should not be considered static. Groundwater levels fluctuate depending on the season, amount of rainfall, surface water runoff, and other factors. Generally, the groundwater level is higher in � the wetter winter months (typically October through May). Laboratory Testing � Laboratory tests were conducted on representative soil sar��ples to verify or modify the field � soil classificalion and to evaluate ihe generai physical properties and engineering characteristics of the soil encountered. Visual classifications were supplemented by grain- size analyses on representative samples. Moisture content tests were performed on all Isampies. The results of laboratory tests performed on specific samples are provided at the � appropriate sample depth on the individual boring logs or on a separate data sheet contained in Appendix B. It is important to note that these test results may not accurately represent the � overall in-situ soil conditions. Our geotechnical engineering recommendations are based on our interpretation of these test results. ECI cannot be responsible for the interpretation of these data by others. � In accordance with our Pro(essiona! Services Contract, the soil samples from this project will be discarded following completion of this report unless we are directec otherwise in writing. i t i i IEAR7H CONSl1LTNG INCORPORATED Page G