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' Project: STONEBRIDGE D PMENT — LATHROP, CA Log of Boring/Monitoring Well: <br /> Wing Location: SEE ATTACHED MAP I Project No.: 70139-004-02 GP- 5 <br /> ' <br /> Subcontractor and Equipment TEG/GEOPROBE Logged By. C. MELANCON Drawn By: T.Z. <br /> Sampling Method: CONTINUOUS CORE Monitoring Device: OVM 5808 PID Comments: <br /> Start Dote/1"ime: 3/30/99//16:30 Finish Date/1Bne: 3/30/`-9-`9/-/-17.-00 17:00 Collected GP— <br /> ' Groundwater sample 3/31/99) <br /> Frsl Water (bgs): X16.5' Stabilized Water Level (bgs): 10.65 <br /> a Surface Elevation: 14.9' MSL Top Casing Elevation: NA <br /> E Boring Abandonment/ <br /> ' z k!_ a N LITHOLOGIC DESCRIPTION <br /> tiWell Construction Details <br /> r i (color, grain size, consistency, moisture, other) <br /> m a <br /> 0 DARK YELLOW BROWN (10YR-4/4) SAND (SP <br /> 1 Sand is fine—grained, loose, moist (0,100,0,0 <br /> 2 <br /> ' 3 3 <br /> 4 Becomes SILTY, color change to LIGHT BROWNISH <br /> ' 4 5 < '; GRAY (10YR-6/2) <br /> 6 � Grout <br /> Backfilled ' <br /> 5% <br /> ' 7 LIGHT BROWNISH GRAY (10YR-6/2) SANDY SILT (ML) Bentonite7cement <br /> Sand is fine—grained, stiff, moist, low plasticity <br /> 8 (0,40,60,0) <br /> 4 9 GRAY 10YR-6/1) SAND (SP) with trace silt, dense, <br /> moist 0,95,5,00) <br /> 10 T <br /> 11 <br /> LIGHT BROWNISH GRAY (10YR-6/2) SILTY CLAY (CL) <br /> 12 with trace fine—grained, very stiff, moist, moderate <br /> plasticity (0,5,35,60) <br /> 13 <br /> 14 PALE BROWN 10YR-6 3 SILTYSAND SM Sand is <br /> ' fine—grained, dense, moist to wet (0,8 ,2 ,0) <br /> 15 <br /> LIGHT BROWNISH GRAY (2.5YR-6/2) SANDY CLAY (CL) <br /> 3 16 with silt. and is fine—grained, very stiff, moist, <br /> ' moderate plasticity (0,30,20,50) <br /> 17 <br /> 18 LIGHT BROWNISH GRAY (tOYR-6/2) SANG SP) <br /> Sand is fine—grained, medium tldense, wet 0,100,0,0) <br /> ' 19 <br /> 20 <br /> End of boring 20' <br /> 21 <br /> ' 22 <br /> 23 <br /> ' 24 <br /> 25 <br /> ' 26 <br /> 72829 27- <br /> 28- <br /> 29 <br /> 30 <br /> SECOR000 Reviewed By. 5T�? SYi Date_ <br /> Revised By. Date: Page 1 of—1— <br />