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8.B. - Page 142 <br /> � Earth Systems Pacific <br /> �� Boring No. 1 <br /> LQGGED BY: C. Cecile PAGE 1 OF 1 <br /> DRILL RIG: B-53 JOB NO.: SH-11407-SA <br /> AUG�R TY�E: 8" Hollow Stern DATE: 19/23/10 <br /> v� VALOTA R�S[DENTIAL SUBD�VI510N SAMPLE DA�A <br /> � � g o 1410 Vafata Raad � � ,� � <br /> � � � Redwood City, California �� � � � �s �� a � �N a � <br /> � ~ � �' w � ¢ � � � ��- no o� � � <br /> � �O�L� DC��C�G°�Op4�OGJ z v' z � � g v °°°" O v <br /> d a <br /> � CH FAT CLP,Y with silt, wet, soft, Dessication <br /> i <br /> cracks vis�ble at surface <br /> 2 CL Light brown sandy lean CLAY with few � <br /> _ gravel, �ery stiff, little silt <br /> 3 S:�F7�, M:2�%, C:32% 1.5-3.0 1-1 � 95.2 11.6 18 >�.5 <br /> >4.5 <br /> 4 5P ' White medium SAND, loose in sampler, <br /> _ coarsening downward to gravelly sand, j B Q <br /> 5 medium dense 3.5-5.0 1-2 � 91.1 9.1 10 <br /> 6 CH —Dark brown FAT CLAY <br /> � <br /> � CL Light brown sandy �ean CL4Y with �ne to <br /> _ medium gravel, becoming moist to wet, very <br /> 9 stiff, medium brown when wet <br /> - 3.25 <br /> ,0 8.5-10.0 1-3 � 97.6 23.2 20 <br /> - 3.25 <br /> i� <br /> iz <br /> 13 <br /> SC— � ' Light gray brown clayey SAND sandy CLAY, <br /> " �� trace very fine subrounded gravel, moist, <br /> � dense 3.25 <br /> is ,� '13.5-15.0 1-4 � 91_7 31.2 40 <br /> _ End of Boring � 15.0' 4.25 <br /> 16 No subsurface water was encountered <br /> n <br /> ie <br /> is <br /> zo <br /> zi <br /> sz <br /> zi <br /> 24 <br /> 25 <br /> 26 <br /> LEGEND: � Mod Cal Sample O Bulk Sample � 5helby Tube Sample � SPT <br /> NOTc: This lag of eu6�urFace conditbns ie a simpl'rfication of actual eondiUons encountered_ R appfies at the lacadon and time of driSling. <br /> Su6surfaca condWona may dfHar at other IocvWns and tima�. <br />