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<br /> Sequoia 680 Chesapeake Drive Redwood City.CA 94063 (650)364-9600 FAX(650)364-9233
<br /> 1 404 N Wiget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673
<br /> Analytical 919 Striker Avenue 5u1te 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100
<br /> 1455 McDowell$ivd North,Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342
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<br /> Get ler-kyan-Dublin"" FYI" �" Client p ect 1D Unocal 88#0187, Stockton x Sampled" Feb 5, 1999
<br /> 116747 Sierra Court, Suite J Sample Matrix Water Received Feb 5, 1999 J
<br /> Dublin, CA 94568 Analysis Method EPA 5030/8015 Mod/8020 Reported Feb 12, 1999
<br /> r Attention- Deanna Harding First Sample# 902-0663
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<br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION
<br /> Reporting Sample Sample Sample Sample Sample Sample
<br /> Analyte Limit LD I.D. I.D. LD I.D. I.D.
<br />' ,ug/L 902-0663 902-0664 902-0665 902-0666 902-0667 902-0668
<br /> NP-1-65 NP-1-22 U-9 Dup-2 EB-2 U-0
<br /> Purgeable
<br /> Hydrocarbons 50 73,000 22,000 200 28,000 N D 27,000
<br /> Benzene 050 7,000 930 11 4,300 N D 4,200
<br /> Toluene 050 19,000 190 53 2,300 053 2,200
<br /> Ethyl Benzene 050 2,400 2,000 42 1,000 N D 300
<br /> Total Xylenes 050 14,000 2,300 25 4,000 1 2 3,800
<br /> Chromatogram Pattern Gasoline Gasoline& Gasoline Gasoline -- Gasoline
<br /> Unidentified
<br />' Hydrocarbons
<br /> C6-C12
<br />' Quality Control Data
<br /> Report Limit Multiplication Factor 200 100 1 0 100 10 100
<br />' Date Analyzed 2/11/99 2/10/99 2/10/99 2/11/99 2/10/99 2/10/99
<br /> Instrument Identification HP-2 HP-2 HP-2 HP-2 HP-2 HP-2
<br /> tSurrogate Recovery, % 108 114 104 115 105 114
<br /> (QC Limits = 70-130%)
<br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard
<br />' Analytes reported as N 0 were not detected above the stated reporting limit
<br /> EQUOIA' ANA��L/Y/TICAL, #1271` 'f�/- - \r
<br /> —4*
<br /> Ilanne Fegley
<br />' Project Manager
<br /> 9020651 GET <3>
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