Laserfiche WebLink
4i3 6ETTLER - RYAN INc. <br /> July 25, 2003 <br /> G-R Job#180138 <br /> Mr Edward C Ralston <br /> ConocoPhillips 1, <br /> 76 Broadway Avenue <br /> Sacramento, California 95818 <br /> RE* Second Quarter Event of June 25 and 26,2003 <br /> Groundwater Monitoring& Sampling Report <br /> Former Tosco (Unocal) Service Station #6981 <br /> 4707 Pacific Avenue <br /> Stockton, California <br /> Dear Mr Ralston <br /> This report documents the most recent 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 <br /> hydrocarbons Separate-phase hydrocarbons were not present in the wells Static water level data and groundwater <br /> elevations are summarized in Table 1 A Potentiometric Map is included as Figure I <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 <br /> report are also attached <br /> Sincerely, <br /> Foe <br /> Deanna L Harding <br /> Project Coordinator <br /> * No.7265 �t <br /> Robert C Mallory tea} <br /> Registered Geologist, No 7285 L, <br /> SCA <br /> Figure 1 Potentiometric Map <br /> Figure 2 Concentration Map <br /> Table I Groundwater Monitoring Data and Analytical Results <br /> Table 2 Groundwater Analytical Results-Oxygenate Compounds <br /> Table 3 Groundwater Analytical Results <br /> Attachments Standard Operating Procedure - Groundwater Sampling <br /> Field Data Sheets <br /> 601 qMT Chain of Custody Document and Laboratory Analytical Reports <br /> 6747 Sierra Court , Suite J • Dublin , California 94568 ( 925 ) 551 - 7555 <br />