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'ni h+F�� <br /> MAL�AB ��N C �`"�50 <br /> � x�. . Submission #: 2000-12-0402 <br /> ..,m .. N■ rw, .�.r.�.�w' �:'.�.� .s •w ""&-� '� y z_Y�'n f %kC��""c� `�')i'u"r� h_ �'a� <br /> Environental Services(SDB) <br /> To Wright Environmental Services Inc Test Method 8020 <br /> Maria Reid`, �b _rr rg7 . ;, -: <br /> t �` w Prep Methacf x.5030 i ;a? _ <br /> +l �V P' Batch�QC Report <br /> Gas/BTEX '{ <br /> Laboratory Control Spike(LCSILCSD) Water QC Batch#2000112/26-0105 <br /> LCS 2000112126-0105-005 Extracted 12126120001010 Analyzed 12126120001010 <br /> -=r LCSD 2000/12126-0105-006 J Extracted 12/26/2000 10 42 h -Analyzed 12/26/2000 10 42 r-P - <br /> Compound Conc - [ug/L.] Exp Conc [ug/L] Recovery[% RPD Ctrl Limits[°Yo] Flags <br /> LCS LCSD LCS LCSD LCS LCSD [%] Recovery RPD LCS LCSD <br /> Benzene 105 104 1000 1000 1050 1040 10 77-123 20 <br /> Toluene 103 100 1000 1000 1030 1000 3 0 78-122 20 <br /> Ethyl benzene 101 979 1000 1000 1010 979 3 1 70-130 20 <br /> Xylene(s) 292 285 300 300 973 950 24 75-125 20 <br /> Surrogate(s) <br /> Trifluorotoluene 581 538 500 500 1162 1076 58-124 <br /> r « <br /> 1220 Quarry LanePleasanton,CA 945664756 <br /> Telephone (925)484-1919"Facsimile (925)484-1096 <br /> Printed on 12/2712000 16 34 Page 4 of 5 <br /> ~S� o�`^ ^+'�:.� �.trt. <br /> �` cL?^ .: .���t..� <br />