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Paragon Environmental Services, Inc. Boring Log/Well Construction Diagram Log Sheet:I of 1 Date: July 31, 2000 Project Name: The Landing Location: Hammer Lane, Stockton CA Driller: Spectrum Exploration Inc. Paragon Personnel: Ben Gould Boring/Well Designation: P-1/PES-1 Depth Blow Counts Recovery PID Soil Characterization (feet) 0-6" 6-12" 12-18" 18-24" (inches) (ppmv) 0.0-0.2 21/2"asphalt paving. - NR Medium-brown,fine-to very fine- 0.2 grained silty sand,little fine gravel; I J Iii 16 some dark gray plastic silt at 0.7-1.2 0.0 feet; more silt than sand below 1.2 feet. NR Dark gray,plastic silt and brown,fine- 8 0.5 to very fine grained sand,little fine- 0.2 grained gravel/coarse sand. NR Same as previous to 4.2 feet(plus trace 0.2 coarse gravel);then mottled tan and . ... 4. I i I; I 10dark gray,fine-to very fine-grained 0.2 sand. t: 0.7 Same as previous to 5.5 feet;then 5.0-6.5 4 7 ` 16 0.3 brown,fine-to very fine-grained sand. 0.5 some silt(moist). f. NR 6.5-8.0 9 I 10 0.6 Same as previous. 0.5 :u r NR Brown,silt and fine-to very fine- 8.0-9.5 I I 1 I 0.7 grained sand to 9 feet. then medium-to 0.5 fine-grained sand,little silt(wet). 0.0 Grayish brown,medium-to fine- 10-11.5 3 5 I I 18 1 0 grained sand and brown silt to 11 feet: , then brown silt,some medium-to fine- 1.8 grained sand. 0.5 Grayish brown,medium-grained sand z ?. 1 I.�-13.l) 17 10 14 18 1.1 (saturated running sands). 1.2 r tti Soil Characterization Terminology Monitoring Well Construction clay=<0.074 mm trace=0-10%.course sand=0.59-2.0 mm Depth of Well: 14.81 feet ti silt=<0.074 mm little= 10-20%.gravel=2.0-76.0 mm Depth to Groundwater:9.09 feet :r tine sand=0.074-0.25 mm some=20-35%:cobbles=>76.0 mm Grouted Interval•0-3 feet fi medium sand=0.25-0.59 mm and=30-50% Bentonite Seal:3-4 feet Sand Pack Interval:4-15 feet Screened Interval:5.5-14.5 feet