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05/08/1996 15:37 5104209170 CAMBRIA PAGE 17 <br /> Sequoia15rct.-P-ke Drive Redwood Oty.CA 94061 (415) 36t.96W FAX(41 S)364-9233 <br /> ,—!D— <br /> '"'get EA" Walnut Creek,CA 94598 (510) 980.9600 FAX(510)980-9673 <br /> Analytical 819 SMkVr AvEnUe.Suitt 8 Sacramento,CA 95534 (916) 921.9600 FAX(916)921-0100 <br /> Cambria 5nVironm ental <br /> Client pr,61et fD- Shell,341 <br /> Main On <br /> 114466th Street St9C Matrix: Solid <br /> Oakland,CA 9460e <br /> Attention: Scott MacLeod <br /> QC Sample Group: 6041607-822 <br /> Reported: may 1, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Ansly1s----Benzene Toluene Ethyl Xylenes Load <br /> sonzens, <br /> OC Batch#: SM42596 SP0425M S"2596 SP0425M ME042" <br /> OMEM OMEXA SMEM 8020FXA 6010MOA <br /> Ansly,Method: EPA 8= EPA 8020 EPA a= EPA 8020 EPA 5010 <br /> Prop.Method- EPA WW EPA$030 EPA 5030 EPA 5030 EPA 3= <br /> Analyst: W Brewer M.Brower M.Brower M.Brewer J Kelly <br /> MS/MSD#: 6041023 6041023 6041023 6041023 60418W <br /> Sample Conc.: ND. N.D N.D. N.D. 1.1 mgJkg <br /> Prepared Onto: 4/25/96 4125/96 4/25196 4/25/9e 4/26/96 <br /> Analyzed Date: 4/25/ft 4/25/96 4/25/96 4/26/96 4/26/96 <br /> Instrument I.D.#: HP-5 HP-5 HP-5 HP-5 MV-3 <br /> Cone.Spiked- 0.40 mg/kg 0.40 mg/kg 0.40 mg/kg 1.2 mg/kg 60 mg/kg <br /> Result; 0.23 0.29 0.31 0-96 45 <br /> MS%Recovery: To 73 78 79 as <br /> Dup.Result: 0,26 0.27 0.29 0Z9 47 <br /> MSD%Recov.: 55 68 73 74 92 <br /> RPD: 7.4 7.1 6.7 0.5 4.4 <br /> RPD Llmft: 0-50 0-50 0-50 0-50 0-20 <br /> LCS SLCqN2596 5LC5042596 si-C..,tAW596 5LCS042596 OLK042696 <br /> Prepared Dale: 4/25/96 4/25/98 4125/96 4/25/96 4/26/96 <br /> Analyzed Date: 4/25/96 4/25/96 4/25/96 4125/96 4/26/98 <br /> Instrument I.D.#: HP-5 HP-5 HP-5 HP-5 MV-3 <br /> Cone.Spiked: 20mg/L 20pg/L 20lig/L 00lig/L 50 mg/kg <br /> LCS Resuft* 17 17 17 54 53 <br /> LCS%Recov.: as 85 85 90 106 <br /> 111,113/111115ff— <br /> LCS <br /> Control Limits 50-150 50-150 50-150 50-150 75-125 <br /> Plea"Note: <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> ANALYTICAL,#1271 preparation,and analytical methods employed for the samples. The matrix spike to an aliquot Of 98enple, <br /> fortified with known quantities of specific compounds arid subjected to"entire analytical procedure. it <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> interference,the LCS 0 to be used to validate the batch. <br /> Wimer MS=Matrix Wke, -1106- <br /> JK W mer OR UPllcals,HPV=R*1abvv%Dff%r@nc9 <br /> P Manager Pr1Di t Manauer <br /> 6041807.CAM <10> <br />