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Project: STONEBRIOGE DE. PMENT — LATHROP, CA Log of Boring/Monitoring Well: <br /> Bing Locatiion: SEE ATTACHED MAP I Project No.: 70139-004-02' GP-2 <br /> I Subcontractor and Equipment: TEG/GEOPROBE logged By. C. MELANCON Drown By. T.Z. <br /> Sampling Method: CONTINUOUS CORE Monitoring Device OVM 5808 PID Comments: <br /> Start Date/Time: 3/30/99//15:30 Finish Dote/rrne: 3/30/99//16:30 16:30 Collected GP— <br /> ' oundwater sample 2(3/30/99) <br /> First Water (bgs): .V10' Stabilized Water Level (bgs): 12.55 <br /> a o Surface Elevation: 16.6' MSL Top Casing Elevation: NA <br /> ' z E € d Boring Abandonment/ <br /> LITHOLOGIC DESCRIPTION <br /> E o o o (color, grain size, consistency, moisture, other) Well Construction Details <br /> Q V <br /> N <br /> ' D DARK BROWN (10YR-3/3) SILTY SAND (SM) Sand is <br /> 1 fine—grained, medium dense, dry to moist (0,85,15,0) <br /> 2 2 <br /> ' 3 Color change to LIGHT BROWN (10YR-6/2) <br /> 4 <br /> ' 3 5 <br /> 6 <br /> LIGHT OLIVE BROWN (2.5Y-5/3) SANDY SILT (ML) with Backn&'dautith 5% <br /> 7 trace clay. Sand is fine—grained, stiff, moist, low, Bentonite7Cement <br /> ' 3 <br /> 8 plasticity, subangular blocky soil structure (0,35,60,5) <br /> 3 9 GRAYISH BROWN(2.5YR—5/2) SILTY SAND {SM) <br /> ' Sand is fine—grained, dense, moist (0,80 02 <br /> 10 ` <br /> 11 <br /> ' 12LIGHT BROWNISH GRAY (10YR-6/2) SILTY CLAY (CL) <br /> with trace fine—grained, very stiff, moist, moderate <br /> 3 13 plasticity, few rootholes (0,5,35,60) <br /> ' 14 <br /> 15 LIGHT BROWNISH GRAY (10YR-6/2) SAND SP) <br /> Sand is fine—grained, medium ddense, wet 0,100,0,0) <br /> 16 <br /> ' End of boring 16' <br /> 17- <br /> 18- <br /> 19- <br /> 20- <br /> 21- <br /> 22- <br /> 23- <br /> 24- <br /> 25- <br /> 26- <br /> 27- <br /> 28- <br /> 29- <br /> 1 <br /> 7181920212223242526272829 <br /> 30 <br /> 000 Reviewed B Dale: 2 <br /> SECOR <br /> Revised By. Date: Page-1—of—L <br />