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&MMINEWSubmission# 2005-09-0209 <br /> STL <br /> Gas/BTEX Fuel Oxygenates by 82608 <br /> URS Corporation <br /> Attn Vernon Elarth <br /> 2870 Gateway Oaks Drive, Suite 300 <br /> Sacramento, CA 95833 <br /> Phone (916)679-2000 Fax (916)679-2900 <br /> Protect 38466463 Received 09/09/2005 09 30 <br /> BP Facility No 2186 <br /> Site 3212 N California Street, Stockton, CA <br /> 95204 <br /> ti :*z M -•• a . "Yi'., T^r'sytas .Pre (S)�-� 5030B s260B- <br /> 4eSam le 1D.nUi86AINF-090805 "� '` �Oh; --,l <br /> � u p - =� � � a � . , Lab�ID�" 2805-05 U209` 1 <br /> >� r h f a e x `� [ qs�t sem• _. 'r^ri _ sF d w�y rtr <br /> Sampled -0910812005 11 15 r -� � --� Extracted- ,v, 911-1/2005 18 40,,, � <br /> _ + <br /> w •Air�r r 8� QC Ba 2005109111-1A 6514 <br /> Ana Flag ETA(rSee§Legend and•Note Sectionl , ' -�.s �• i' r 5 s <br /> Compound Conc RL Und Conc RL Unit Dilution Analyzed Rag <br /> Gasoline 150 50 mglm3 42 14 ppmv 1 09/11/2005 18 40 <br /> Benzene NO 050 mg/m3 NO 015 ppmv 1 09/11/2005 18 40 <br /> • Toluene 1 5 050 mglm3 039 013 ppmv 1 09/11/2005 18 40 <br /> Ethylbenzene 1 5 050 mg/m3 034 0 11 ppmv 1 09/11/2005 18 40 <br /> Total xylenes 21 1 0 mg/m3 4 8 023 ppmv 1 09/11/2005 18 40 <br /> Methyl tert-butyl ether ND 050 mg/m3 NO 0 14 ppmv 1 09/11/2005 18 40 <br /> Surrogate(s) <br /> 1 2-Dichloroethane-d4 1079 72-128 % % 1 09/11/2005 18 40 <br /> Toluene-d8 894 80-113 % % 1 09/11/2005 18 40 <br /> � I <br /> i <br /> I <br /> Severn Trent Laboratories, Inc 09/1312005 18 13 <br /> STL San Francisco" 1220 Quarry Lane,Pleasanton CA 94566 <br /> A P-n Of se� Tien,ft Tel 925 484 1919 Fax 925 484 1096-www stl-inc corn'CA DHS ELAP#2496 Page 2 of 8 <br />