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� 3t <br /> a, <br /> B R O W N A SER'Y;�� <br /> CALDWEL =L <br /> October 31, 1995 <br /> Mr Kyle Christie <br /> ARCO Products Company <br /> 2155 South Bascom Avenue, Suite 202 <br /> Campbell,California 95008 017-2065-0111 <br /> Subject Third Quarter 1995 Groundwater Monitoring and Remediation System Evaluation <br /> Report for ARCO Facility 434, Lodi, California Site Code 1341 <br /> Dear Mr Christie <br /> This report presents water-level measurements and results of groundwater sampling, and <br /> summarizes the progress of remediation operations for the third quarter of 1995 at ARCO <br /> Products Company (ARCO)Facility 434 Facility 434 is located at 501 Kettleman Lane in Lodi, <br /> California Fieldwork was performed by EMCON Associates (EMCON) on August 10 and <br /> 11, 1995 Remediation system data were collected by Brown and Caldwell personnel This <br /> . report was prepared under Work Authorization No 2900-00 <br /> 1 <br /> J There are six on-site monitonng wells (W-1A, W-2, W-2A, W-2B, W-3, and W-9) and eight <br /> on-site soil vapor extraction wells (VE-1 through VE-8) as shown on Figure 1 In addition, <br /> there are eight off-site monitoring wells (W-4 through W-8, and W-10 through W-12) <br /> However, well W-6 has been permanently damaged by construction of a Boston Market <br /> restaurant As discussed in a letter dated August 29, 1995 from Ms Margaret Lagono of the <br /> San Joaquin County Public Health Services (County), the County believes that ARCO has made <br /> a good faith attempt to find and properly destroy well W-6 The letter further states that the <br /> County has filed a complaint against Boston Market with their distnct attorney for the improper <br /> abandonment of well W-6 by Boston Market <br /> Field and Analytical Methods <br /> EMCON personnel measured depth-to-water and product thickness (when present), purged each <br /> well to be sampled, and collected groundwater samples at the site All groundwater monitoring <br /> wells were sampled except W-4 and W-2A, which were dry <br /> Before sampling, the wells were purged of a minimum of three well casing volumes, or until <br /> evacuated, using a submersible pump or polyvinyl chlonde (PVC) bailer After purging, each <br /> well was sampled using a disposable bailer Allgroundwater samples were analyzed for <br /> This report Aas prepared in accordance with the standards of the environmental consulting industry at the time it Baas <br /> prepared It should not be relied upon by parties other than those for whom it was prepared and then only to the extent <br /> of the scope of work which was authorized This report does not guarantee that no additional environmental <br /> contamination beyond that described in this report exists at the site <br /> Environmen(alEngineerrngAnd Consulirng Anafy1calServices 2065VR@P0RTWRD95QTRDOC <br /> 9616 %11CR01, A%E',LE $LITE 600 SACR %ME',T0 Ca 93827 2627 <br /> (916) 444 0123 F%k (9161 836 3271 <br />