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1 <br /> ` I 404 N WIget lane <br /> Sequoia Walnut Geek. 94598 <br /> ', � (925)988-9600 988-9600 <br /> FAX(925)988-9673 <br /> fwd Analytical , `"'""" ,"°lalabs`°'Y; <br /> Gettier Ryan,Inc`-Dublin N Project Tosco ; 'f <br /> wi ua� <br /> 6747 Sierra Court Suite j Project Number Tosco#11194 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding £11-Apr-00 10 38 <br /> Total Metals by EPA 6000/7000 Series Methods - Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> Analyte _ Result Liimt Units 'Level Result °/aREC Lurnts RPD , Lutut Notes <br /> Batch OC29005-EPA 200 Series <br /> Blank(OC29005-BLKI) Prepared 28-Mar-00 Analyzed 30-Mar-00 <br /> Mercury ND 000020 mg/l <br /> LCS(OC29005-BSI) Prepared 28-Mar-00 Analyzed 30-Mar-00 <br /> Mercury 000235 000020 mgll 000200 117 80-120 <br /> LCS Dap(OC29005-BSDI) Prepared 28-Mar-00 Analyzed 30-Max-00 <br /> Mercuuy 000220 000020 tng/1 000200 110 80-120" 659 20 <br /> Matrix Spike(OC29005-MS1) Source W003589-01 Prepared 28-Mar-00 Analyzed 30-Mar-00 <br /> Mercury 1 000247 '-0 00020 ing/1 `0 00200 -ND 123 75-125 r <br /> Matrix Spike Dup(OC29005-MSD1) Source W003589-01 Prepared 28-Mar-00 Analyzed 30-Mar-00 <br /> Mercury 000249 - -1,000020 mg/i " 000200 ND _ 124-- 75-125 0 806 -20 - <br /> Batch OC29010-200.7 <br /> Blank(OC29010-BIM) Prepared 29-Mar-00 Analyzed 10-Apr-00 <br /> Cadmium ND 0 010 MO <br /> — <br /> Copper ND 0 020 " <br /> Nickel ND 0 010 " <br /> LCS(OC29010-BSI) ! Prepared 29-Mar-00 Analyzed 10-Apr4O <br /> Cadmium - 113 0 010 ing/1 100 7 113 80-120 <br /> Chronuum 111 0 010 100 111 80-120 <br /> Copper 109 0 020 - 100 109 80-120 <br /> Lead 109 0 020 100 109 80-120 <br /> Nickel 113 0 Ol0'• " 100 113 80-120 <br /> zmc 122 010 _ too 122 80-120 A-Ol " <br /> Sequoia An*ttcal-Walnut Creek The results in tMs report apply to the samples analysed in accordance with the chid <br /> custody document TMs analytical report must be nepraduced In its enti <br /> Page 11 of 21 <br />