Laserfiche WebLink
6ETTLER - RYAN INC. <br /> October 19, 2001 <br /> G-R Job#180138 <br /> Mr Edward C Ralston <br /> Tosco Marketing Company <br /> 1380 Lead Hill Road, Suite 120 <br /> Roseville,California 95661 <br /> RE: Third Quarter Event of September 12 and 13,2001 <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 I A Potentiometnc Map is included as Figure 1 <br /> • Groundwater samples were collected from the monitoring wells as specified by G-R Standard Operating Procedure <br /> -Groundwater Sampling(attached) The field data sheets are also attached The samples were analyzed by Sequoia <br /> Analytical Analytical results are summarized in Tables 1, 2 and 3 A Concentration Map is included as Figure <br /> 2 The chain of custody document and laboratory analytical reports are also attached <br /> Sincerely, <br /> ESSIp� <br /> Deanna L Harding Q p KF <br /> Project Coordinator ��• �O Vp <",• <br /> d No C 55734 <br /> * EXP <br /> Hagop KevorkdI <br /> PE No C55734 T4CN11- ctS' <br /> TF 4F C A`,�O <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 <br /> Table 3 Groundwater Analytical Results <br /> Attachments Standard Operating Procedure-Groundwater Sampling <br /> Field Data Sheets <br /> 6981 qml Chain of Custody Document and Laboratory Analytical Reports <br /> Court Suite J • Dublin , California 94568 925 551 -7555 <br /> 6747 Sierra � ) <br />