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S85 Jarvis Dr <br /> (DISequoia Morgan Hill,CA 95037 <br /> Analytical <br /> (408)776-9600 <br /> Analytical FAX(4108)782-6308 <br /> www.sequoialabs.com <br /> atus Environmental Inc. Project: ARCO#5469,Stockton,CA MLK0837 <br /> 30 Cameron Park Dr.,Suite 550 Project Number: ARCO#5469,Stockton,CA Reported: <br /> Cameron Park CA,95682 Project Manager: Jay Johnson 12/23/02 10:37 <br /> Total Purgeable Hydroearbons (C6-00) by EPA 8015B modified, BTEX by EPA 8021B <br /> Sequoia Analytical-Morgan Hill <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> CPT/-52-S(MLK0837-01)Soil Sampled: 11/21/02 10:15 Received 11/2110215:45 <br /> Gasoline Range Organics(C6-CID) ND 0.50 mg/kg 1 2LO5001 12/05/02 12/05/02 8015Bm/8021B <br /> Benzene ND 0.0050 " <br /> Toluene ND 0.0050 " <br /> Ethylbenzene ND 0.0050 " <br /> Xylenes(total) ND 0.010 " <br /> Surrogate: a,a,a-Trifluorotaluene 104010 64-145 " <br /> Surrogate:4-Bromofluorobenzene 114% 41-173 " <br /> CPT1-62-W(MLK0837-02)Water Sampled: 11121102.10:30 Received: 11/21/02 15:45 _ <br /> Gasoline Range Organics(C6-C10) ND 50 ug/1 1 2L04004 12/04/02 12/04/02 8015Brra/8021B <br /> Benzene ND 0.50 <br /> Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> Surrogate. a,a,a-Trifluorotoluene 76.7% 55-142 " <br /> A&W1-72-W(MLK0837-03)Water Sampled: 11/21/02 11:10 Received: 11/2110.2 15:45 <br /> soline Range Organics (C6-C10) ND 50 ugn i 2LO4004 12/04/02 12/04/02 8015Brn/8021B <br /> Benzene ND 0.50 <br /> Toluene ND 0.50 " <br /> Ethylbenzene ND 0.50 <br /> Xylenes(total) ND 0.50 " <br /> Surrogate: a,a,a-Trifluorotoluene 83.5% 55-142 " <br /> CPT1-91-W(MLK0837-04)Water Sampled: 11/21/02 11:50 Received: 11/21/02 15:45 <br /> Gasoline Range Organics (C6-C 10) ND 50 ug/1 1 2LO3002 12/03/02 12/03/02 8015Bm/80218 <br /> Benzene 0.92 0.50 <br /> Toluene 1.3 OSO " <br /> Ethylbenzene I.4 0.50 " <br /> Xylenes(total) 4.4 0.50 " <br /> Surrogate: a,a,a-Trifluorotoluene 99,2% 55-142 " <br /> oia Analytical-Morgan Hill The results in this report apply to the samples analized in accordance with the chain of <br /> custody document. Unless othe",ise stated,results are reported on a wet weight basis. <br /> This analytical report must be reproduced in its entirety. <br /> Page 3 of 13 <br />