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GRANITE CONSTRUCTION 20SSSS76SS 06!24/02 10:28am P. 019 <br /> Sequoia <br /> 819 Striker Avenue,Suite 8 <br /> Sacramento,CA 95834 <br /> 6 (916)921-9600 <br /> fAX(916)921-0 100 <br /> a yt�c a www.sequoialabs.com <br /> Kleinfelder-Stockton Project: Granite Burnpile <br /> 2825 East Myrtle Street Project Number: 20-1108-33 Reported: <br /> Stockton CA,95205 Project Manager: Doug Heard 08/15/01 17:24 <br /> Total Purgeable Hydrocarbons and BTEX by DHS LUFT-Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spike Source %RSC RPD <br /> Analyte Result Limit Units Level Result %RBC Limits RPD Limit Notes <br /> Batch 1080085 EPA 5030B(MeOH) <br /> Blank 1080085-BLK1) Prepared&Analyzed:08/07/01 <br /> .-__._J_-..___..-____............ - <br /> Purgeable Hydrocarbons ND 5.0 mg/kg <br /> Benzene ND 0.025 " <br /> Toluene ND 0.025 <br /> Ethylbenzene ND 0.025 " <br /> Xylenes(total) ND --0.025 -_ ..___.�_- _._. .._.._-----------.--------------• <br /> Surrogate:a,a,a-Tr&orotoluene 1.16 1.00 116 60-140 <br /> LCS(10$0085-BSI _ Prepared&Analyzed;08/07/01-- <br /> Benzene 1.07 0.025 mg/kg 1.00 107 70-130 <br /> Toluene 1.08 0.025 " 1.00 108 70-130 <br /> Ethylbenzene 1.10 0.025 1.00 110 70-130 <br /> Xylenes(total) 3.15 0.025 " 3.00 105 70-130 <br /> Surrogate:a,a,a-Truorotoluene 1.24 /.00 124 60-140 <br /> Matrix S ike 1080085-MSl Source:S107403-21 Prepared&Analyzed:08/07/01 <br /> Benzene 0.880 0.025 ml/kg 1.00 ND 85.7 60-140 <br /> Toluene 0.914 0.025 1.00 ND 91A 60-140 <br /> Ethylbenzene 0.953 0.025 1.00 ND 93.5 60-140 <br /> Xylenes(tom 2.77 0.025 3.00 0.050 90.7- 60-140 <br /> Surrogate:a.a,a-Triuorotoluene 1.10 - _ 1.00 110 60 140 <br /> Matrix Spike Dup(1080085-MSDI) _ Source:S107403-21 _ Prepared&Analyzed:08/07/01 <br /> Benzene -� 0.866 0.025 mg/kg 1.00 ND 84.3-- 60-140 1.60 25 <br /> Toluene 0.898 0.025 1.00 ND 89.8 60-140 1.77 25 <br /> Ethylbenzene 0.951 0.025 1.00 ND 93.3 60-140 0.210 25 <br /> Xylenes(total) 2.78 - -0.025 - - 3.00 0.050 91.0--- <br /> - 60-140 0.360 25 w - <br /> Surrogate:a,a,a-Triuorotoluene 1.11 1.00 Ill _60140 <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document.This analytical report must be reproduced to its entirety. <br /> Page 10 of 20 <br />