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TABLE 2 Discrete Soil Analytical Results Summary of Detected Compounds 24550 Hansen Road Tracy,California Project No.33113-013018.02 TPH(mg/kg) OCPs(mg/kg) Metals(mg/kg) Sample Sample Depth(feel bgs) Sample Date Identification TPH-d M,4-DDDE Chlordane alpha-chlordane gamma- Arsenic Barium Chromium Lead Mercury chlordane BV-1 1.0'-1.5' 5/30/2013 - 46 ND 0.0034 0.0036 ND 240 26 6.4 0.019 BV-1 7.5'-8.0' 5/30/2013 ND - - - - - - - - BV-2 1.01-1.51 5/30/2013 - 5 ND 0.0044 0.0037 ND 300 29 7.6 0.023 BV-2 7.5'-8.0' 5/30/2013 ND - - - - • 5/26/2013 - 6 0.053 0.013 0.0042 4.6 270 30 8.0 0.023 BV-3 7.5'-8.0' 5/28/2013 1.6 - -BV-3 14.5'-15.0' 5/28/2013 ND - -BV-4 11.5'-12.0' 5/28/2013 ND - - - - BV-4 21.5'-22.0' 5/28/2013 ND - - - - -BV-5 1.0'-1.5' 5/29/2013 - 0.0037 0.019 0.088 0.011 0.0096 4.6 300 27 8.2 0.024 BV-5 75-8.0' 529/2013 ND - - - - - - - - - - BV-6 3.5'-4.0' 5/29/2013 BV-6 15.5'-16.0' 5/29/2013 ND - - - - - - BV-7 3.5'-4.0' 529/2013 - BV-7 15.5'-16.0' 529/2013 ND - - - - - - - - - - BV-8 3.5'-4.0' 5/29/2013 ND - - - - - - - - - -_ BV-8 11.5'-12.0' 5/29/2013 BV-10 7.5'-B.0' 5/30/2013 - BV-11 7.5'-6.0' 6/32013 ND - - - - - - - - - -_ BV-12 7.5'-8.0' 6/32013 ND - - - - - - BV-13 1.5'-2.0' 5/312013 - ND ND ND ND ND ND 260 28 7.0 0.030 BV-13 7.5'-B.0' 5/31/2013 ND - - - - - - - - - - BV-14 1.5'-2.0' 5/31/2013 - ND ND ND ND ND 6.0 350 42 11 0.018 BV-14 TV-8.0' 5/31/2013 ND - - - - - - - • RWOCB ESL Residential 83 1.7 1.7 0.44 0.44 0.44 0.039 750 750 80 6.7 DTSC CHHSL Residential 1.6 1.6 0.43 0.43 0.43 0.07 5,200 100,000 BO 18 Notes: Results reported in milligrams per kilogram(mg/Kg) All samples tested using EPA Method 8260B,BTEX/MTBE were under the defection limits All TPH-mo and TPH-g analyzed by EPA Method 80158 and 82608,respectively,were under the reporting limits(Practical Quantitation Limit) Al BTEX/MTBE analyzed by EPA Method 82608 were under the reporting limits All other OCPs analyzed by EPA Method 8081A were under the reporting limits All other metals analyzed by EPA Methods 60108(7471A were under the reporting limits ND=not detected above analytical laboratory reporting limit(Practical Quantitation Limit) -=Not Analyzed;ESL and/or CHHSL Not Established RWQCB ESL=Regional Water Quality Control Board Environmental Screening Level for Residential land use(RWQCB,Tables A and C,February 2013). DTSC CHHSL-Residential values from Table 1 of the California Human Health Screening Levels(CHHSLs)Cal'domia Environmental Protection Agency,Use of CHHSLs in Evaluation of Contaminated Properties-January 2005(updated October 2010). TPH=total petroleum hydrocarbons(as diesel,TPH-d;motor oil,TPH-mo;gasoline,TPH-g) BTEX=benzene,toluene,ethylbenzene and total xylenes OCPs=Organochlorine Pesticides Bolded detections denote concentrations above ESL and/or CHHSL