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i EC 10 "DO 14:31 SEQUOIA ANPLYTICaL P,9 <br /> SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood City, CA 940$3 <br /> (415) 364-9600 FAX (415) 364-9233 <br /> k . *A'..w'�. .>�Y%. +:w"a`« �^kd��' .Y�.!�av�'.� ."n.M� <br /> 1=itM-West _. . ,v.� _._ ......�.: ,> <br /> Clier>t Project ID: 40'4 EI Dorado, Stockton Sampled: Dec fi, 19901 <br /> 2001 P Street, Suite 200 Matrbc Dec <br /> Water Received: Dec 6, 1990 R= <br /> ;Sacramento,CA 95814 Analysis Method. EPA 5030/8015/8020 Analyzed: Dec 6, 1990- E <br /> Attention: Jim Ou[nn Frst Sample#. 012-9149 <br /> Reported: Dec 10. 19904. <br /> �`..ba.;L <br /> TOTAL PETROLEUM FUEL HYDROCARBONS with STEX DISTINCTION (EPA 8015/8020) <br />� f <br /> Sample Sample Low/Medium S.P. Ethyl <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> Pg/L Ng/L k8/L Wg/L Mg/L <br /> (ppb) (ppb) (ppb) (ppb) (ppb) <br /> 012-9149 MP 2D GwO 7,900 1,100 620 280 440 <br /> i <br /> 012-9151 MP-22: GW N.D. 3.8 N.D. N.D. N.D. <br /> 012-9152 MP-21: GW' 860 300 3.2 3.7 N.D. <br /> 012-9153 MP-23: GW N.D. N.D. N.D. N.D. N.D. ` <br /> 012-9184 MP-24: GW 170 N.D. N.D. N.D. N.D. <br /> E <br /> 012-9155 MP-25; GW 140 N.D. N.D. N.D. N.D. <br /> i <br /> II <br /> f <br /> Detection Limits: 30 0.30 0.30 0.30 0.30 <br /> 1 <br /> Low to Medium Bolling Paint Hydrocarbons are quantitated against a gasoline standard. <br /> Analytes reported as N.D.were not present above the stated limit of detection. <br /> SEQUOIA ANALYTICAL Please Note- <br /> The above samples appear to contain gasoline. <br /> i <br /> Maile A. McBlmey <br /> Project Manager 12912'LE-PJ I <8> <br /> S <br />