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L <br /> AMER <br /> Advanced Materials L/ rials Engineering Research, Inc. <br /> L <br /> L REPORT SUMMARY <br /> (ELAP Certificate No. 1909) <br /> EPA METHOD 8020 <br /> L <br /> LCLIENT: <br /> TETRA TECH, INC. DATE SAMPLED: 02-03-95 <br /> 670 N. Rosemead Blvd. DATE RECEIVED: 02-06-95 <br /> L Pasadena, CA 91107 DATE REPORTED: 02-13-95 <br /> MATRIX: WATER AMER ID: E858 <br /> PROJECT MANAGER: Dan Batrack <br /> PROJECT: CASTLE ROCK FFS,#0099-01 <br /> LQA/QC SUMMARY: <br /> LO-09 1. This narrative covers the analysis of two samples in accordance with protocols based on <br /> DHS Luft manuals 8020. <br /> 2. All required holding times for this analysis were met. <br /> 3. All initial and continuing standard calibrations associated with this data set were within <br /> Lacceptable limits. <br /> 4. The method blank associated with this data set did not contain concentrations at or above the <br /> reporting limit for 8020 (BTEX) <br /> 1 5. The blank spike recoveries and the RPDs were within the acceptable limits. <br /> L <br /> 6. The sample spike recoveries and the RPDs were within the acceptable limits. <br /> L7. Surrogate Recoveries were within the allowable limits except for sample E5020636 which <br /> was a little below the limit. <br /> LReviewed By <br /> + —a,l <br /> Lei Chen, Laboratory Manager <br /> t <br /> 783 East Evel <br /> yn Ave., Sunnyvale, CA 94086 Tel. (408) 738-3033 Fax. (408) 738-3035 <br /> 'Accredited for AHERA TEM Asbestos Analysis,NVLAP Code 1907 <br /> e <br /> L <br />