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Soil Gas <br />Monitoring <br />Well <br />SGMW2 <br />TABLE I <br />SUMMARY OF FIELD SCREENING AND LABORATORY ANALYTICAL DATA <br />SOIL GAS MONITORING WELLS SGMWI AND SGMW2 <br />APPROXIMATE 48 -ACRE MURPHY PARKWAY PROPERTY <br />17100 Murphy Parkway, Lathrop, California <br />Brusca File No. 137-002 <br />FIELD SCREENING LABORATORY TESTING <br />Methane and Fixed Gases by ASTM <br />Method D1946 I Volatile Organic Coml <br />Date <br />1/26/2018 <br />Hydrogen <br />Sulfide <br />0.0 ppm <br />Carbon <br />Dioxide <br />0.0 ppm <br />2/16/2018 <br />0.0 ppm <br />0.0 ppm <br />3/19/2018 <br />0.0 ppm <br />8.0 ppm <br />4/17/2018 <br />0.0 ppm <br />1.4% <br />5/14/2018 <br />0.0 ppm <br />0.0 ppm <br />1/26/2018 <br />0.0 ppm <br />0.0 ppm <br />2/16/2018 <br />0.0 ppm <br />0.0 ppm <br />3/19/2018 <br />0.0 ppm <br />15 ppm <br />4/17/2018 <br />0.0 ppm <br />2.1% <br />5/14/2018 <br />0.0 ppm <br />0.0 ppm <br />20.3% <br />19.4% <br />18.7% <br />19.5% <br />20.9% <br />19.2% <br />19.4% <br />18.5% <br />18.5% <br />20.9% <br />Methane <br />0.0% <br />0.0% <br />0.0% <br />0.0% <br />0.0% <br />0.0% <br />0.0% <br />0.0% <br />0/0% <br />0.0% <br />Methane <br /><0.00023 <br />Oxygen <br />20 <br />Carbon <br />Dioxide <br />1.0 <br />Nitrogen <br />79 <br /><0.00023 <br />19 <br />1.3 <br />80 <br />0.00026 <br />19 <br />1.3 <br />80 <br />0.00022 <br />19 <br />1.2 <br />80 <br />0.00028 <br />20 <br />1.1 <br />79 <br /><0.00023 <br />21 <br />0.3 <br />79 <br /><0.00023 <br />19 <br />1.2 <br />80 <br /><0.00021 <br />18 <br />1.4 <br />81 <br /><0.00022 <br />19 <br />2.0 <br />79 <br /><0.00023 20 1.1 79 <br />SCREENING VALUES <br />Carbon <br />Disulfide <br />(ug/m3) <br />17 <br /><14 <br /><14 <br />17 <br />60 <br /><14 <br /><14 <br /><13 <br /><14 <br />15 <br />Chloroform <br />lug/m3) <br />20 <br />Benzene <br />(ng/m3) <br /><3.6 <br /><5.5 <br /><3.6 <br /><5.3 <br /><3.5 <br /><5.1 <br />4.7 <br /><5.7 <br /><3.7 <br /><5.7 <br /><3.7 <br /><5.3 <br /><3.5 <br /><5.2 <br /><3.4 <br /><5.4 <br /><3.5 <br /><5.7 <br /><3.7 <br />EPA Method TO -15 <br />Acetone <br />(ug/m3) <br /><27 <br />San <br />Other <br />(ee`4!!b <br />report) <br />ND <br /><27 <br />ND <br /><26 <br />ND <br /><25 <br />ND <br />80 <br />ND <br /><28 <br />ND <br /><26 <br />ND <br /><25 <br />ND <br /><26 <br />- <br />100 <br />NO <br />Francisco Bay Regional Water Quality Control Board <br />Environmental Screening Levels (ESL); February 2016; N/A 530 ug/m3 420 ug/m3 31,000,000 ug/m3 <br />Note: ND = Not detected at concentrations above the laboratory reporting limits. <br />N/A = Screening value not established <br />