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T <br /> S <br /> W <br /> y <br /> WESTER ', GEOLOGIC RESOURCES , ( NC . <br /> J-Randall/24 April 19% 2 <br /> ANALYTIC RESULTS <br /> i <br /> Groundwater samples from monitor wells MW-1 through MW-5 were analyzed for total <br /> purgeable fuel hydrocarbons OTFIi)and aromatic hydrocarbons by EPA Methods 8015/8420. Selected <br /> samples were analyzed for haiocarbons by EPA Method 8010. Analytic results for past sampling events <br /> t, and this round of sampling arc presented in Table 2. A chain-of-custody form and laboratory reports <br /> With quality assurance/quality control documentation are included as Attachments D and E,respectively. <br /> ti <br /> COMMENIS <br /> Groundwater flow direction and gradient are consistent with those from the previous sampling <br /> round in December 1989. Analytic results are consistent with previous trsults in December 1989 except <br /> for increases of more than an order of magnitude in concentrations of ethylberurve and total xylenes <br /> �{ in samples from wcll;4 MW-1 and MW,2,respectively. <br /> Western Geologic Resources is pleased to provide geologic and environmental consulting <br /> services for Chevron and we trust that this report meets your reeds. Pleaso call us at(413)457-7595 <br /> ifou have an s <br /> Y Y questions, <br /> Sincerely, <br /> Western Geologic Resources,Inc. <br /> cz <br /> 100�1 � <br /> Jan L.7rglcr <br /> IkED who Staff .a is( <br /> W�♦�d�*S 1.�Cy{off <br /> NO.4504 Thomas J.Ech <br /> * Project Geolo ist <br /> Exp.8130.90 * CRG#t4564 <br /> 4f <br /> CAL1F���' <br /> 4 �:. lo4t.wN.wP <br />