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E I <br /> R <br /> CERTIFICATE OF ANALYSIS <br /> bi LU <br /> Analytical Laboratory T}�esdrry,rune 24,2003 <br /> aa- TO. Rita Koehnen � � <br /> Part of Stockton - <br /> I <br /> 2201 W Washington St <br /> Stockton CA 95203 <br /> I <br /> Aromatic Compound in Gasoline by GCIMS <br /> Sample 1'nformatian� <br /> Sample 1'D. 22368-01 i, I Sa le e. Grab <br /> Sample Desert tion- MW 3-4 � �P . <br /> P P I ilPro�eci Name- Port of Stoclaon UST Site Na 3 , <br /> Tt <br /> Date/Time Sampled- 5/29/2043 3 15-00 PM Sample Matrix: Ground Water <br /> :mares-.a.�. w,uun„�z _nrr rcrw-a <br /> r ANAL YTICAL RESULT <br /> 1 i Date LCS Spike MS Spike <br /> �TestPrirameter MethodY _MwYry DLR � z �Unit� Residt Anal zed Blank _ ° ° <br /> a <br /> Lest _ Y Conc. LCS% Cone. MS/o MSD RSD <br /> Ld Benzene --- - _EPA 8260B 4_ 5 <br /> _ E __ 6g/L ND i 42-Jun-03 NO 25� 960% 25' 1040% _112 0% 1 9% L N <br /> a 1 Toluene_ €PA 8260E- _0 5_ MND 42-Jun-0_3 ND 25 -— 92_0% 25-- - 960% 1080% <br /> _ — <br /> _ _ _ _ <br /> Ethylbenzena W W_----W __EPA 82608 _ 05 I r ug/L T-- HD T 02-Jun-03 25 - 9_6_0%�T 25W -104 0% ti08 0% �- 09% ; <br /> EPA 8_2608_ 05 MII _Og/L ND 0_2�lun_-03 NO 52^ 100 0% W` �52 _- -105 8% 1096% 09% <br /> 4 aXylene - -W-w - EPA 82608 y _ --- 05 E �w ug/L_ ND -r 02-Jun-03 NO 25 _92_0% _ 25 ' 112o% 104_4°.6 9%_ _ <br /> TPH-Cas --_- - EPA 8015MlLUFTn- µ--50~_ I uglL � --Np_ 02-Jun-03 -- NOy__500 104 0% 500 Y 110 0%� 104 0%6-W - 1 4% � <br /> 1,2-Ofchioroethane-d4 Surro ate) %Recovery ;I �.IS 98% l `--_- — - <br /> 4-BFB-(Surrogate) --� Y ._ %Recovery .. .--f— --II -- --- - —"94 <br /> I' -mg lL =rntlllgratns per Later r ppm RSD-represent relative percent d�e►ent(RPD)benveen duplicates cptke ofsampks <br /> ugil=tnrcrngranrsper Lrier=ppb of Drrplrcale ofSanlple } <br /> 4ffo <br /> P FU M D, If Il MSIMSD-measure of the per wnt recovery efficiencies within the matrtr <br /> I' C=C antpostle G=Grab LCS-rneaaure of the percenr recovery of the Laboratory Control spike acv <br /> amt ' <br /> mN I I DLR-Defection Lrnttt for the Purpose of Reporting Exrepitonal sample <br /> than Hao Le,Laboratory Director I man ices or lnfe feretteces may result to higher detection lumis <br /> ! I <br /> v E <br /> 11 , <br /> CC' 11 <br /> � I J <br /> N <br /> 4 <br /> m <br /> CD <br /> N <br /> � I , <br /> LD <br /> EPA-Glyn la!Protecrion Agency Method SM-Slandord Method Or E ton o Nva !&th - -' -' <br /> l_ �� �--�� ,.,ice M " � 11 - --�■-- -�-_ ■� 6f� <br />