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i <br /> M <br /> A680 Chesapeake Drive Redwood Clry,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N.WISet Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue,Sulte 8 Sacramento,CA 95834 (916)921-9600 FAX(936)921-0100 <br /> Analytical 1455 McDowell Blvd.North,Ste.D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> LKleinfelder-Stockton Project: NIA Sampled: 10/21/98 <br /> 2825 East Myrtle Street Project Number: 20-2864-02.E02 Received: 10/23/98 <br /> Stockton,CA 95205 Project Manager: Tony Martin Reported: 11/10/98 <br /> LTotal Purgeable Hydrocarbons(C6-02)and BTEX by DHS LUFT/Quality Control - <br /> Sequoia Analytical-Sacraniento <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov. Limits % Limit % Notes* <br /> LBatch: 8110040 DA&TxKaaLO Extraction lilethnd: EPA 5030BEPA 5030B(Me4ll] <br /> Blank 8110040-BL1C1 <br /> Purgeable Hydrocarbons 1113198 ND mg/kg 1.00 <br /> Benzene ND 0.00500 <br /> Toluene ND „ 0.00500 <br /> LLL Ethylbenzene NI) 0.00500 <br /> Xylenes(total) ND 0.00500 <br /> LSurrogate: a,a,a-Trifluor-otoluene 0.200 0.190 60.0-140 95.0 <br /> ] (�"S 8110fl40-BS] <br /> Benzene 11/3/98 0.200 0.201 mg/kg 70.0-130 101 <br /> Toluene 0.200 O.IS7 70.0-130 93.5 <br /> Ethylbenzene 0.200 0.186 70.0-130 93.0 <br /> Xylenes(total) 0.600 0.552 70.0-130 92.0 <br /> LSurrogate: a,a,a-Trifluoroioluene 0.200 0.185 60.0-140 92.5 <br /> Matrix Spike 8110040-MSi S810215-04 <br /> Benzene 11/3/98 0.200 ND 0.185 mg/kg 60.0-140 92.5 <br /> Toluene 0.200 ND 0.177 60.0-140 $8.5 <br /> Ethylbenzene 0.200 ND 0.176 60.0-140 88.0 <br /> Xylenes(total) 0.600 ND 0.526 60.0-140 87.7 <br /> Surrogate: a,o,o-Trfluorotohrene 0.100 0.198 60.0-140 99.0 <br /> LMatrix Spike Dup 8110040-1%4SD1S810215-04 <br /> Benzene 1113/98 0.200 ND 0.169 mg/kg 60.0-140 84.5 25.0 9.04 <br /> Toluene 0.200 ND 0.163 " 60.0-140 81.5 25.0 8.24 <br /> Ethylbenzene 0.200 ND 0.161 60.0-140 80.5 25.0 8.90 <br /> Xylenes(total) 0.600 ND 0.483 60.0-140 80.5 25.0 8.56 <br /> Surrogate: a,a,a-Trifluorotoluene 0.200 0.171 60.0-140 66.0 <br /> LBatch: 8110041 Date Pr�pared 1114/9_8 Extra ction Method; EPA 5030B(Me= <br /> Blank 8110041-BLK1 <br /> Purgeable Hydrocarbons 11/4/99 ND mg/kg 1.00 <br /> Benzene ND 0.00500 <br /> Toluene ND 0.00500 <br /> Ethylbenzene ND 0.00500 <br /> Xylenes(total) ND 0.00500 <br /> Surrogate: a,a,a-Trifluorotohwne 0.200 0.204 60.0-140 101 <br /> LCS 8110041-BSI <br /> Benzene 1114198 0.200 0.220 mg/kg 70.0-130 110 <br /> Toluene 0.200 0.212 70.0-130 106 <br /> Sequoia alytical-Sacramento *Refer to end of report for.text ofnotes and definitions. <br /> nda C.Schneider, Laboratory Director Page 5 of 10 <br />