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APPLIED TECHNOLOGY SERVICES(ATS) 662.1.11.28 <br /> LABORATORY TEST REPORT <br /> ftftie gas ald <br /> Electric Company <br /> SUBJECT: POST CLEAN UP ANALYSIS OF TRANSFORMER OIL SPILL FOR PCB <br /> AT 424 NORTH E STREET,STOCKTON <br /> ATS CHEMISTRY SERVICES UNIT FILE 1103.002 <br /> On February 23,2011,John Holliday of ATS collected post clean up samples In areas impacted by a <br /> transformer oil spill near 124 North E Street,Stockton,Ca.Prior to sampling,the asphalt portion of the <br /> spill site was cleaned with Penetone solution and two Inches of impacted soil was excavated by <br /> Philips Transportation Services.Wipe samples were collected on 100-square centimeter cotton gauze <br /> strips that were saturated with hexane.The soil samples were collected in 8-oz glass jars.The <br /> samples were transferred under chain of custody to Test America Laboratories, Pleasanton,Co. <br /> The samples were prepared and analyzed for polychlorinated bipheniys(PC8s)by EPA Method 8082. <br /> The test results are summarized below and a sampling location diagram Is attached, <br /> JaMgja 12 Sammie line U13 Concentration Aroclo <br /> NE-1 Wipe 3.1 ug per 100 cm, 1254 <br /> NE-2 Wipe 5.9 ug per 100 cm! 1254 <br /> NE-3 Wipe 8.6 ug per 100 cros 1264 <br /> NE-4 Wipe 1.4 ug per 100 cm' 1254 <br /> NE-5 Wipe 0.77 ug per 100 cin' 1264 <br /> NE-6 Wipe 0.33 ug per 100 cm' 1254 <br /> NE-7 Wipe 7.1 ug per 100 amp 1254 <br /> NE-8 wipe 1.9 ug per 100 cin= 1264 <br /> NE-9 Wipe 14 ug per 100 cmc 1254 <br /> NE-10 Wipe 19 ug per 100 cm! 1254 <br /> NE-11 Wipe 24 ug per 100 cd 1254 <br /> NE-12 wipe 0.64 ug per 100 cm° 1254 <br /> NE43 Soli 0.37 mg/kg 1264 <br /> NE-14 Soil 0.11 mg/kg 1264 <br /> NE-15 Soil 0.29 mg/kg 1254 <br /> NE-16 soil 0.26 mg/kg 1264 <br /> NE-17 soil 0.17 mglkg 1264 <br /> NE-18 soil 0.09 mglkq 1254 <br /> NE-19 Sol[ 1.1 mg/kg 1264 <br /> NE-20 Soil 1.0 mg/kg 1264 <br /> NE-21 Soil 2.9 mg k 1254 <br /> The Test America laboratory test report and PG&E's chain of custody form are attached. <br /> pc: Alex Steele Date: March 1, 2011 <br /> Tested by; <br /> John Holliday <br /> Approved by. C(ts wt 1V4 <br /> Clement 0.Da Silva <br />