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Table 1 <br /> Washrack Investigation Boring Construction Details <br /> California Army National Guard Army Air Support Facility <br /> Stockton,California <br /> SamplingPoint/ Date Borehole Borehole Drillin Sample Casing �crs Filter Pack Bentonite Grout Northing// Eastin / Surface <br /> g P 99 9 Surface <br /> Well ID Completed Depth' Dia.' Technology Depth' Dia.' ' ' Sea l° Volume° Latitude' Longitude' Elevation° Completion <br /> ba s <br /> AASF Groundwater Monitoring Wells <br /> MW-a 3/28/2011 50' 10'/. HSA - 4" 30-50' 9 125 60 al 10 flush mount <br /> MW-5 3/29/2011 48' 10°/. HSA 4" 26-46' 11 125 70 gal 13 flush mount <br /> MW-6 3/30/2011 48' 10% HSA - 4" 28-48' 10.5 110 80 gal 12 flush mount <br /> AA SF Groundwater Grab Sample Borings <br /> AASF-GW-001 2/15/2011 40 2.125 DPT 35.5 - - - 10(2) native soil <br /> AASF-GW-002 2/152011 45 2.125 DPT 40 - - - 11(2) native soil <br /> AASF-GW-003 2/152011 45 2.125 DPT 40 - - - 11(2) native soil <br /> AASF-GW-004 2/162011 45 2.125 DPT 40 - - - -- 11(2) native soil <br /> AASF-GW-005 2/162011 45 2.125 DPT 40 - - -- 11(2) native soil <br /> AASF-GW-006 2/162011 50 2.125 DPT 40 - - - 14(2.75) native soil <br /> AASF-GW-007 2/162011 5o 2.125 DPT 46 - 14(2.75) native soil <br /> AASF-GW-008 2/162011 45 2.125 DPT 40 - - - 11(2) native soil <br /> AASF-GW-009 2/172011 50 2.125 DPT 45 - - 14(2.75) native soil <br /> AASF-GW-010 2/172011 50 2.125 DPT 45 - - - 14(2.75) native soil <br /> AASF-GW-011 2/172011 45 2.125 DPT 40.5 - - 11(2) native soil <br /> AASF-GW-012 2/172011 50 2.125 DPT 45 - - 14(2.75) native soil <br /> AASF-GW-013 2/172011 50 2.125 DPT 40 - - 14(2.75) native soil <br /> AASF-GW-014 2/142011 40 2.125 DPT 37 -- -- - 10(2) native soil <br /> AASF-GW-015 2/142011 40 2.125 DPT 34 - - - - 10(2) native soil <br /> AASF-GW-016 2/152011 40 2.125 DPT 35 - - -- -- 10(2) native soil <br /> AASF-GW-017 2/152011 40 2.125 DPT 34.5 - -- -- -- 10(2) native soil <br /> AASF-GW-018 2/152011 40 2.125 DPT 36 - -- - - 10(2) native soil <br /> AASF-GW-019 2/152011 50 2.125 DPT 45 - -- - -- 14(2.75) native soil <br /> AASF-GW-020 2/182011 45 2.125 DPT 41 - -- -- - 12(2.25) native soil <br /> AASF-GW-021 2/182011 50 2.125 DPT 40 - -- 14(2.75) native soil <br /> AASF-GW-022 2/182011 55 2.125 DPT 40 - -- - 15(2.25) native soil <br /> AASF-GW-023 2/222011 50 2.125 DPT 40 -- - - 14(2.75) concrete <br /> AASF-GW-024 2/182011 50 2.125 DPT 40 - - - 14(2.75) concrete <br /> AASF-GW-025 2/182011 50 2.125 DPT 41.5 - -- - - 14(2.75) concrete <br /> AASF-GW-026 2222011 50 2.125 DPT 40 -- - - 14(2.75) concrete <br /> AASF-GW-027 2222011 50 2.125 DPT 38 -- - - 14(2.75) concrete <br /> AASF-GW-028 2222011 50 2.125 DPT 42.5 - -- -- - 14(2.75) concrete <br /> AASF-GW-028 2222011 50 2.125 DPT 37.5 - -- - 14(2.75) concrete <br /> AASF-GW-030 2/142011 40 2.125 DPT 37 - -- - 11(2) native soil <br /> NOTES: 9 <br /> Dia.=dumeter <br /> =Depth measured in feel below ground surface(bgs) <br /> =Diameter measured in inches <br /> =Screen interval in feet bgs <br /> =number of 100 Ib,bags of Cemex 62/12 Sand <br /> °=pounds of 1/4"time release bentonde pellets <br /> °=Gallons of grout number of 47 lb.bags used in parenthesis <br /> '=X.Y coordinates surveyed using NAD83 datum,presented in decimal degrees <br /> °=Elevation(Z)measured in feel above mean seal level(NGVD 88 datum) <br /> -=Not applicable <br /> Page 1 <br />