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' Drilling Log <br /> GROUNDWATER Monitoring Wel! MW--20 <br /> TECHNOLOGY <br />' Project Southland Qwner Southland See Site Map <br /> Location_Stockton CAProlect Number 020301211050811 For Boring Location <br /> Date Drilled 08/18/91 Total Depth of Hole 65 ft Diameter 8 to NOTES <br /> Top of Casing —" ft Water Level Initial 53 ft Static -- ft <br /> Screen Dia 2 in Length 20 ft Slot Size 0 020 In <br /> Casing Dia 2 to Length 45 ft Type Sched 40 PVC <br />' Filter Pack Material 2/12 Monterey Rig/Core Type CME 75/continuous <br /> Dulling Company Sterra Pacific Dnl/Mon Method Hollow Stem Auger/PID <br /> Driller Erin Fruehauf Log By Chris McCormack <br /> Geologist/Engineer Ed Stmonfs License No 4422 <br /> �-- 2 �� N U <br /> v a s at o o Q° Description <br />' a E" _ {Color, Texture, Structure) <br /> O`r o moW 0 O <br /> U 1-n 9 1n <br />' 0 PID CMTS Asphalt and road base <br /> Tan to medium brown clayey, sandy SILT (tight, dry) <br /> t 2 < c <br /> < c ML <br /> 4 < < <br /> 1 ` ` 0 A Tan, fine to medium SAND with some clay (loose moist) <br /> 6 ` <br /> ` < <br /> < < 5C <br /> < < 0 8 <br /> 10 < <r Tan silty, medium SAND (loose, most to slightly wet) <br />' < < <br /> 12 r r 0 C <br /> < < SM <br />' < < <br /> 14 <br /> White medium SAND (very poorly graded, moist) <br />' < < Q D <br /> 16 < < <br /> `r `r SP <br /> 18 < <br /> < < <br />' 20 < < Dark tan to medium brown clayey silty SAND with dark red—brown <br /> 10 E mottling, local clay varves (well graded, tight, dry to moist) <br /> 22 < < <br /> c c 5C <br /> 24 < < <br /> < < Light tan to medium brown fine to medium SAND (moderately graded <br /> SP moist) <br /> 26 <br /> 02/10/1992 ptbas+coct <br />