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GETTLER - RYAN I <br /> January 29, 2004 <br /> �ECE r�RJob#386846 <br /> Mr Robert Cochran � <br /> Chevron Products Company <br /> P O Box 6004 <br /> San Ramon, CA 94583 JUN 0 1 2004 <br /> ENVIRONMENT HEALTH <br /> RE: First Quarter Event of January 6,2004 PERMIT/SERVICES <br /> Groundwater Monitoring & Sampling Report <br /> Chevron Service Station #9-9840 <br /> 4344 Waterloo Road <br /> Stockton, California <br /> Dear Mr Cochran <br /> This report documents the most recent groundwater monitoring and sampling event performed by Gettler- <br /> Ryan Inc (G-R) at the referenced site All field work was conducted in accordance with G-R Standard <br /> Operating Procedure-Groundwater Sampling (attached) <br /> Static groundwater levels were measured and the wells were checked for the presence of separate-phase <br /> hydrocarbons Static water level data, groundwater elevations, and separate-phase hydrocarbon thickness (if <br /> any) are presented in the attached Table I A Potentiometric Map is included as Figure 1 <br /> . Groundwater samples were collected from the monitoring wells and submitted to a state certified laboratory <br /> for analyses The field data sheets for this event are attached Analytical results are presented in the table(s) <br /> listed below A Concentration Map is included as Figure 2 The chain of custody document and laboratory <br /> analytical report are also attached <br /> Please call if you have any questions or comments regarding this report Thank you <br /> Sincerely, <br /> Deanna L Harding <br /> Project Coordinator �,?,OFESS/04 <br /> KEt�0rn <br /> 2 <br /> Hao Kevork No C 55734 <br /> P No C55734 * Exp <br /> Figure l Potentiometric Map ��q CML <br /> Figure 2 Concentration Map lF OF 0 <br /> Table 1 Groundwater Monitoring Data and Analytical Results <br /> Table 2 Groundwater Analytical Results-Oxygenate Compounds <br /> Attachments Standard Operating Procedure-Groundwater Sampling <br /> Field Data Sheets <br /> Chain of Custody Document and Laboratory Analytical Reports <br /> 6747 Sierra Court, Suite J - Dublin, CA 94568 - (925) 551-7555 - Fax (925) 551-7888 <br /> 3140 Gold Camp Drive, Suite 170 - Rancho Cordova, CA 95670 - (916) 631-1300 - Fax (916) 631-1317 <br /> 1364 N McDowell Blvd , Suite 132 - Petaluma, CA 94954 - (707) 789-3255 - Fax (707) 789-3218 <br />