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a 1 <br /> 3 � n <br /> Well Construction Details <br /> Former Unocal Station No 5098 ' <br /> 54,00 and 5606 Pacific Avenue <br /> Stockton; California e <br /> Well Depth to Blank ' Screened Hyd rostrati graphic Sbnd Bentonite Cement/ ' <br /> Number Bottom Casing Interval " 1 Unit 'Pack Seal Grout <br /> ft tbs tbs tbs tbs tbs <br /> 1, LL <br /> Vapor Extraction and Combination Wells <br /> VEW_1A _ 26, T 0 to 10 10 to 25 -- 8 to 26 6 to 8 0 to 6 <br /> VEW-1 B 66 0 to 25 25 to 40 A 23 to 41 21 to 23 0 to 21 1 <br /> 40 to 64 64 to 65 1 B 62 to 66 41 to 62 <br /> VEW-2 36_ _0 to 1515 to,35,_ti' -A r,, ,' 13 to 36 r ' 10 to 13 0 to-10 <br /> VEW-2B 51 0 to 35 _ 35 to 50 A 33 to 51 L 31 to 33 A 0 to 31 ' <br /> VEW-3 51 0 to 20 20 to 30 -- 18 to 31 16 to 18 0 to 16 <br /> 30 to 40 40 to 50 A 38 to 51 31 to 38 <br /> VEW-4 51 0 to 20 20 to 30 -- 18 to 31 16 to 18 0 to 16 ' <br /> 30 to 40 40 to 50 A 38 to'51 31 to 38 <br /> VEW-5 51 0 to 20 20 to 30 -- 18 to 31 16 to 18 0 to 16 <br /> 30 to 40 40 to 50 A 38 to 51 31 to 38 , <br /> VEW-6 60 0 to 10 10 to 30 -- 9 to 31_ 7 to 9 0 to 7 <br /> 0 to 55 55 to 60 B 53 to 60 47 to 53 <br /> VEW-7 60 0 to 10 10 to 30 -- 9 to 31 7 to 9 0 to 7 <br /> ` 1 <br /> -0 to`54 5 54 5 to 59 5 - B' - 53 to 595 46 5 to 53 - ' <br /> VEW-8 60 0 to 10 10 to 30 -- 9 to 31 7 to 9 0 to 7 <br /> 1 Oto 545 545to595 B 52 to 595 47 to 52 r <br /> VEW-9 60 0 to 10 10 to 30 -- 9 5 to 31 7 to 9 5 0 to 7 <br /> 0 to 54 5 54 5 to,59 5 B 53 to 59 5 47 25 to 53 <br /> VEW-10 60 0to10 10 to 30 -- 9to31 75to9 0to75 <br /> 0 to 54 5 54 5 to 59 5 B 52 to 59 5 48 to 52 <br /> VEW-11 60 0 to 10 10 to 30 -- 9 to 31 7 to 9 0 to 7 <br /> =0_to 54 5. —54 5 to 59 5= - Bim---=52 5 to'59 5= =47=5 to 52-5= <br /> VEW-12 60 0 to 10 10 to 30 -- 9 to 31 6 to 9 0 to 6 <br /> =- -- ----- == =-0 to 55= 55 to 60-i= =�53 to 60= X48 to 53= <br /> VEW-13 60 0 to 15 15 to 30 -- 14 to 31 11 to 14 0 to 11 <br /> --`- -- - ----0 to 55-- _55-to-60- - - --B- 52 to 60' - 47 to 52 - <br /> O <br /> NOTES <br /> *bgs = below ground surface- <br /> Hydrostratigraphic Units screened approximately as follows µ <br /> A =25 to 45 feet below grade surface (bgs) <br /> B =45 to 65 feet bgs <br /> C = 85 to 90 feet bgs <br /> D = 97 to 103 feet bgs <br /> Screened above the upper hydrostratigraphic unit <br /> 06940-293 2 of 2 ENSR Corporation ' <br />