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Superior !'recision Analytical. Inc. <br /> n A member of ESSCON Environmental Support Service Consortium <br /> . C E R T I F I C A T E O F A N A L Y S I S <br /> TOTAL PETROLEUM HYDROCARBONS <br /> QA/QC Information <br /> Laboratory Number: 50409 <br /> NA - Analysis NOT required <br /> ND - Not Detected above quantitation limit <br /> Matrix: water <br /> Analyte Spike Recovery RPD Control Limits <br /> Gasoline_Range 131/134 2 65-135 <br /> Benzene 101/101 0 65-135 <br /> Toluene 104/101 3 65-135 <br /> Ethyl Benzene 101/100 1 65-135 <br /> Total Xylenes 105/102 3 65-135 <br /> *** - Hydrocarbons were found in the range of gasoline, but do not <br /> resemble a gasoline fingerprint. <br /> �t6,&j �J�:� c)/.2 <br /> Vcnidr �bhe=st <br /> count Manager <br /> Page 2 of 2 <br /> • <br /> Certified Laboratories <br /> 825 Arnold Dr Suite 1 14 1555 Burke St Unit 1 309 S Cloverdale St Suite B-24 <br /> Martinez California 94553 San Francisco California 94124 Seattle Washington 98108 <br /> (510) 229-1512 / fax (510) 229-1526 (415) 647-2081 / fax (4)5) 821-7123 (206) 763-2992 / fax (206) 763-8429 <br />