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{ II <br /> ii. <br /> p <br /> GETTLER - RYAN <br /> INC. <br /> 1 <br /> 1 <br /> December 17, 2004 1 <br /> G-R.Job#386582 <br /> : i <br /> Mr. Robert Cochran <br /> ChevronTexaco Company , ' 1 <br /> P.O. Box 6012, Room K2200 <br /> San Ramon, CA 94583 <br /> 41. <br /> a <br /> RE: Fourth Quarter Event of November 18,2004 <br /> Groundwater Monitoring& Sampling Report <br /> Chevron Service Station 49-1452 <br /> 334 East Main Street � � 3 <br /> IM <br /> Ripon, California ! <br /> Dear Mr. Cochran: s' <br /> This report,documents the most recent groundwater monitoring and sampling event performed by Y Gettler-R an <br /> Inc. (G-R) at the referenced site. All field work was conducted in accordance with G-R Standard Operating <br /> Procedure "Groundwater Sampling(attached). 11 <br /> } <br /> Static groundwater levels were measured and the wells were checked for the resence of separate-phase <br /> Q <br /> P <br /> hydrocarbons. 5tattc water leve] data, groundwater elevations, and separate-phase hydrocarbon thickness (if <br /> any)are presented in the attached Table 1. A Potentiometric Map is included as Figure 1. <br /> Groundwater samples were collected from the monitoring wells and submitted to a state certified laboratory for <br /> analyses. The field data sheets for this event are attached. Analytical`results are presented in the table(s) listed <br /> below. A Concentration Map is included as Figure 2. The chain of custody document and laboratory analytical i <br /> report are also attached: <br /> I! N. <br /> Please call if you have any questions or comments'regarding this report. Thank you, i <br /> I. ._ <br /> Sincerely, <br /> Foe - I! �� pROF�S$�W F <br /> Deanna L. Harding ' �Op <br /> Project Coordinator <br /> CO <br /> NOS <br /> o F <br /> i wmI a No 5573 I <br /> rn <br /> * EXP•' ' <br /> i <br /> HagP o Kevork <br />'I P.E.No. C5.5734 'i '9TF Civil- <br /> Of C A ILL <br /> ivilOF-CAILL <br /> Figure 1: Potentiometric Map ? <br /> Figure 2:. Concentration Map <br /> Table 1: . Groundwater Monitoring Data and Analytical Results <br /> Table 2: Groundwater Analytical Results-Oxygenate Compounds 61;Yt Yg ;P <br /> I Attachments: Standard Operating Procedure-Groundwater Sampling '! I <br /> Field Data Sheets <br /> j Chain of Custody Document and Laboratory Analytical Reports <br /> A <br /> 6747 Sierra Court, Suite J • Dublin, ;CA 94568 • (925) 551?-7555 • Fax (92{5) 551-7888 <br /> 31.40 Gold Camp Drive, Suite 170 • Rancho Cordova, CA 95670 • (916) 631-1300 ! Fax (916) 631-1317 <br /> 1864 N. McDowell Blvd-, Suite B2 • Petaluma, CA 94954 • (707) 789-3255 • Fax (707) 789-3218 <br />