ARCHIVED REPORTS_CONCEPTUAL SITE MODEL

Home Browse Search

S ECOR Logged By: Date Drilled: Drilling Contractor Project Name: Method/Equipment: well Number: • CHEVRON 1001621 HSA T.MYERS 12/13/04 CASCADE BANTA,CA CME MW-65B Boring Surface Groundwater Depth(ft.): Total Drive Drop Dia 8(in.): Elev.(ft.): Depth(ft.): wt.(Ibs.): Dist.(in.): 8 60.0 140 30 ^ > Well N z Constructionp o Description a a Ca n. oa Traffic Rated AIR Concrete Slab Well Box KNIFE As halt TO 8' Sandy Silt(ML):dark greenish gray(IOY 4/1),very stiff,fine grained sand,damp,strong odor, SPH sheen,(0-35-65). 186 5 Silt(ML):gray(7.5YR 5/1), low to medium plasticity,medium stiff, fine grained sand,damp,strong odor, SPH sheen,(0-10-90). 228 W65 i @5, 2" Sch 40 PVC Casing Sandy Silt(ML):As Above,moist. 10 10 13 10 37 Silt with Sand (ML):grey(IOYR 5/1), low to medium plasticity, medium stiffness,fine grained sand,damp,medium odor,(0-15-85). 21 W65 31 @10' 30 33 Silt with Sand(ML):olive gray(5Y 5/2),low to medium plasticity, 29 medium stiffness fine rained sand dam medium odor,(0-15-85). 30 Silty Sand(SM):light olive brown(2.5Y 5/3),fine grained, low to 5 W65 medium plasticity,medium stiffness,mild odor,moist to wet, @13.5 15 22 (0-55-45). 24 6 W65 25 @15.5 Neat Cement Grout 30 Silty Sand(SM):olive brown(2.5Y 4/3),fine grained, low plasticity, 8 W65 36 soft,moist to wet,mild odor,(0-70-30). @17.5' 40 20 26 Sandy Silt(ML):light olive brown(2.5Y 5/3),low to no plasticity, 8 dW65 27 soft, fine grained sand,damp,mild odor,(0-35-65). @20' 20 16 19 9 dW651 50 @23' The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or samples obtained during drilling. Predominant material types shown on the log may contain different materials and the change from one predominant material type to another could be different than indicated. Descriptions on this log apply only at the specific location at the time of drilling and may not be representative of subsurface conditions at other locations or times. • Project No. 77CH.11621.28.0250 Date 12/17/2004 MB Log of Well 1621M65B.GPJ Approved by LOG OF BOREHOLE ' Figure (sheet 1 of 3)