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S E C 0 R <br /> Logged By Date Drilled Drilling Contractor Protect Name Method/Equipment well Numbar <br /> Offsite Monitoring Well Install HSA <br /> MB 1/18/05 Cascade 3202 West Hammer Lane,Stockton,CA LAR MW-11 <br /> Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> Diam(in) Elev(ft) 13 First Water Depth(ft) wt Obs) Dist(in} <br /> 8 12 75 Static Water 300 140 30 <br /> Well ¢ w <br /> o A 2 <br /> Description <br /> Construction 2 m to <br /> R <br /> 8" Traffic AIR As halt Surface <br /> Rated Well CLEAR <br /> Box TO 5' <br /> NO RECOVERY <br /> Neat Cement <br /> RGrout <br /> 5 -------- ———— — ----------- <br /> Sandy Silt(ML) Olive Brown(2 5 Y 4/4),soft consistency, <br /> Bentonite non-elastic, damp,no odor,(0-40-60) <br /> Seal <br /> #3 Monterey <br /> Sand Filter 10 170 -1 <br /> Pack 1 @10' <br /> 21 Poorly Graded Sand(SP) Strong Brown(7 5 YR 416), fine grained, <br /> medium density,damp, wet at 13',no odor,trace silt,(0-100-0) <br /> Well Graded Sand(SW) Dark Yellowish Brown(1 OYR 4/6), — <br /> 15 16 sub-rounded,medium density,saturated,no odor,(0-100-0) 0 W-1 <br /> 0 020" 18 @15' <br /> Slotted 20 <br /> Screen <br /> 20 _...------------------------------- <br /> O NO RECOVERY <br /> 2" Schedule Poorly Graded Sand with Silt(SP) Olive Brown(2 5 Y 4/3),fine <br /> 40 PVC Pipe grained,dense,saturated,no odor,trace silt,(0-80-20) <br /> 25 17 0 -11 <br /> 22 @25' <br /> 21 <br /> End Cap <br /> 30 12 Poorly Graded Sand with Silt(SP) Dark Olive Brown(5Y 3/2), fine 0 W-1 <br /> 15 gTained,saturated no odor,trace silt 0-80-20 @30' <br /> 17 FT <br /> The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or <br /> samples obtained during drilling Predominant material types shown on the log may contain different materials and the change from <br /> one predominant material type to another could be different than indicated Descriptions on this log apply only at the specific location <br /> at the time of drilling and may not be representative of subsurface conditions at other locations or times <br /> Project No 77CP 60193 04 0012 Date 2/4/05 Log of Well <br /> OFFSITE MW 11-12 GPI Figure <br /> LOG OF BOREHOLE <br /> (sheet 1 of 1) <br />