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I TABLE GROUNDWATER CHEMICAL ANALYTICAL RESULTS(PAHs)' US Can-Welty Road Vernalis,California Concentrations reported in micrograms per liter(pg/L)unless noted Benzo(b)- Benzo- Benzo(k)- Indeno- Date Acenaph- Acenaph- Anthra- Benzo(a)- Benzo(a)- Huoran- (g,h,i)- Buoran- Dibenz(a,h)• Fluoran- (1,2,3-cd)- Naph- Phenan- Sample ID tN°""t Collected thene thylene cene anthracene pyrene thene perylene thene Chrysene anthracene thene Fluorene pyrene thalena throne Pyrene MW11 10/1/96 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND MW-2 728/98s ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 520102 1.1 ND ND ND ND ND ND ND 03 ND ND 23 ND ND ND 0.2 7/21/2005 3 <0.09 5 0.7 0.3 0.7 03 <0.05 2 0.2 0.9 5 <0.09 1 <0.05 2 MW-3 728/98" ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 5201026 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 8/7/03° ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 721/2005 <0.01 <0.02 0.04 0.1 <0.02 <0.02 <0.02 <0.01 0.1 <0.02 0.1 0.09 <0.02 0.02 0.01 03 MW-4 728/98' ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 520/026 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 721/2005 <0.01 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.01 <0.02 <0.02 <0.01 <0.01 <0.02 <0.01 0.01 <0.02 MW-5 4212005 <0.01 <0.01 <0.01 <0.01 <0.005 <0.01 <0.01 <0.01 <0.01 <0.005 <0.01 <0.0I <0.01 0.012 <0.01 <0.01 7/212005 <0.009 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.009 <0.02 <0 02 <0.009 <0.009 <0.02 <0.009 <0.009 <0 02 WFSMW-1 t''1j 11/10/99' ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 521/026 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 421/2005 <0.01 <0.01 <0.0I <0.01 <0.005 <0.01 <0.01 <0.01 <0.01 <0.005 <0.01 <0.01 <001 0.025 0.011 <0.01 7/27/2005 <0.009 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.009 <0.02 <0.02 <0.009 <0.009 <0.02 <0.009 <0.009 <0.02 Abbreviations: NA Not Analyzed. ND Not Detected at or above the laboratory reporting limit. pg/L=micrograms per liter <=Analyte riot detected at or above the laboratory reporting limit shown PAHs=Polynucl=aromatic hydrocarbons. Noes: 1.PAHs were analyzed by Lancaster Laboratories,Inc.using EPA Method 82700 SIM.The QC limits for PAHs and surrogate standard recoveries by LVI GUMS are advisory only until sufficient data points can be obtained to calculate statistical limits. 4 Sample collected by Geological Technics,lnc,of Modesto,California,and analyzed by Sherwood Labs Corp.of Hilmar.California,for TPHg,TPHd, TPHmn,and TPIIk using EPA Method 8015M,and by Sequoia Analytical of Sacramento,California,for VOCs using EPA Method 8240. 5.Samples collected by Radian International and analyzed by Core Laboratories of Andrei in,California,for TPHg,TPHd,and TPHmo using EPA Method 8015M,BTEX and MTBE using EPA Method 3020,and PAH using EPA Method 8270 6.Samples collected by Geomatrix Consultants.Inc.,of Oakland,Califomia,and analyzed by Friedman&Bmya of Seattle,Washington for TPHg and TPHd using EPA Method 8015M,BTEX using EPA Method 8260B,and PAHs using EPA Method 8270 SIM. 7 Well located on Western Form Service Property. 8 Samples collected by Gcomatrix Consultants,Inc.,and analyzed by Fnedmun&Bmyn of Seattle,War:hmgton,for TPHd and TPHg using EPA Method 8015M,BTEX using EPA Method 82608,and 1'or PAH.=us:ng EPA Method 8270C SIM. TPHd results presented bath with and without silica-gel cleanup using EPA Method 3630 Page I of I