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SECOR International Incorporated Logged By Dates Drilled Drilling Contractor Project Name Method/Equipk Well Number 11/19/03 CASCADE CONOCOPHILLIPS 5671 AIR ROTA CM 11/20/03 DRILLING STOCKTON,CA CASING HAMW-8 See Legend to Logs for Boring Surface Groundwater Depth(ft) TotalDrop samphng method, Diam(in) Elev(ft) g 39 25 FIRST Depth(ft) ) Dist(in) classifications and laboratory5 13 18 TOC 1110 30 testin methods ani - O z Well 3 Description Construction Cn TRAFFIC- 5" Concrete Slab with Rebar RATED Gravelly Sand(Fill) WELL BOX SILTY CLAY(CL) black(2 5Y-2 511),very stiff,moderate plasticity, moist(0,0,30,70) Upper 70' of 5 Soil Loggedby --------------------------------- Cuttings SANDY SILT with CLAY (ML) yellow brown(10YR-5/4), Fine-grained sand,stiff to very stiff,moderate plasticity,moist (0,30,65,5) 2"DTA 10 0 BLANK PVC CASING GROUT 15- 5 Same as above 0 ————————————-------------------- 1 SAND(SP) light yellow brown(2 5Y-613),fine to medium-grained, dense,damp(0,100,0,0) 20 1 — SANDY SILT with CLAY (ML) yellow brown(lOYR-514), fine-grained sand,stiff to very stiff,moderate plasticity,moist (0,30,65,5) -- 4 SAND with SILT(SP) 2 The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or Sdmp s obtained during drilling Predominant material types shown on the log may contain different materials and the change from one predominant material type to mother could be different than indicated Descriptions on this log apply only at the specific location at he time of drilling and mdy not be representative of subsurface conditions at other locations or time, • Project No 77CP 6867102 0006 Date 12/23/03 KF Log of Well 8671 SB 1 GPJ Approved by LOG OF BOREHOLE Figure (sheet 1 0l 5)