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1 <br /> r ETTLER - RYA N INC. <br /> December 1 ], 2002 <br /> G-R Job#180198 <br /> Mr Edward C Ralston <br /> Phillips 66 Company <br /> 1380 Lead Hill Road, Suite 120 <br /> Roseville, California 95661 <br /> RE. Fourth Quarter Event of November 4,2002 <br /> Groundwater Monitoring & Sampling Report <br /> Tosco(Circle K) Unit#08671 <br /> 8606 Thornton Road <br /> Stockton, California <br /> Dear Mr Ralston <br /> This report documents the most iecent groundwater monitoring and sampling event performed by Gettler-Ryan Inc <br /> (G-R) at the referenced site All field work was conducted in accordance with G-R Standard Operating Procedure- <br /> Groundwater Sampling (attached) <br /> Static groundwater levels were measured and all wells were checked for the presence of separate-phase hydrocarbons <br /> Separate-phase hydrocarbons were not present in the wells Static water level data and groundwater elevations are <br /> summarized in Table 1 Joint groundwater monitoring and analytical data are piesented in Table 3 A Potentiometne <br /> 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 below <br /> A Concentration Map is included as Figure 2 The chain of custody document and laboratory analytical report are also <br /> attached <br /> Sincerely, <br /> Deanna L Harding Q�01-E6;f <br /> Project Coordinator f �cv0 P K <br /> No C 5573 m <br /> cc Hagop Kevork Exp 0 <br /> P E No C55734 s� P <br /> cl k- <br /> Figure 1 Potentiometric Map Or C A1-\�n <br /> Figure 2 Concentration Map <br /> Table 1 Groundwater Monitoring Data and Analytical Results <br /> Table 2 Groundwater Analytical Results-Oxygenate Compounds <br /> Table 3 Joint Groundwater Monitoring Data and Analytical Results <br /> Attachments Standard Operating Procedure- Groundwater Sampling <br /> Field Data Sheets <br /> Chain of Custody Document and Laboratory Analytical Reports <br /> uh671 ynd <br /> 6747 Sierra Court , Suite J . Dublin , California 94568 { 925 ) 551 - 7555 <br />