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TABLE 2 <br /> Summary of Well Construction Details <br /> Boulevard Automotive <br /> 2151 Country Club Boulevard <br /> Stockton,California <br /> Well Installation Well Bottom of Top of Screen Hydrogeologic <br /> No. Date Diameter Boring Sand Pack Interval Unit[1] <br /> (inches) (feet) (feet) (feet) (HU) <br /> DPE-1 12/17/2009 4 25 8 10-25 HUl <br /> DPE-2 12/17/2009 4 24.5 7.5 9.5-24.5 HUl <br /> IW-1 01/24/2018 2 25 4 5-25 HUl <br /> IW-2 01/24/2018 2 50 28 30-50 HU2 <br /> IW-3 01/24/2018 2 25 4 5-25 HUl <br /> IW-4 01/25/2018 2 50 28 30-50 HU2 <br /> IW-5 01/29/2018 2 25 4 5-25 HUl <br /> IW-6 01/29/2018 2 50 28 30-50 HU2 <br /> IW-7 01/30/2018 2 25 4 5-25 HUl <br /> IW-8 01/30/2018 2 50 28 30-50 HU2 <br /> IW-9 01/31/2018 2 25 4 5-25 HUl <br /> IW-10 01/31/2018 2 50 28 30-50 HU2 <br /> Notes <br /> [1] Hydrogeologic units(HUs)refer to vertical intervals of soil with significant lateral extent and similar hydrogeologic characteristic: <br /> over its vertical and horizontal extent(i.e hydraulic conductivity,transmissivity,etc).The six informal HUs identified at the Site <br /> are as follows: <br /> HU1: 15-30'below ground surface(bgs) <br /> HU2:30-50'bgs <br /> HU3:50-70'bgs <br /> HU4:70-85'bgs <br /> HU5:85-110'bgs <br /> HU6: 110-125'bgs <br /> Bold Indicates off-Site wells <br /> FREY Environmental,Inc. Table 2-Page 2 of 2 Project No. 1175-01 <br />