Laserfiche WebLink
INTRODUCTION <br />' At the request of ExxonMobil Oil Corporation, ETIC Engineering, Inc has prepared this quarterly <br /> groundwater monitoring report for former Exxon Retail Site 7-3942 This report presents the results <br /> for the most recent groundwater monitoring conducted at the site and summarizes recent site <br />' activities This report covers site activities from 11 June 2003,the date of the last monitoring event, <br /> until 17 September 2003,the date of the recent monitoring event The report also presents results for <br /> remediation system monitoring Groundwater monitoring results, well construction details, a <br />' groundwater monitoring plan,and system monitoring results are summarized in the attached figures <br /> and tables Groundwater monitoring protocols, field data,and analytical results are provided in the <br />' attached appendixes <br />' GENERAL SITE INFORMATION <br /> Site name: Former Exxon Retail Site 7-3942 <br />' Site address: 4444 North Pershing Avenue, Stockton, California <br /> Current property owner Edna I Filippi Family LP <br /> Current site use: Vacant lot <br />' Current phase of protect: Groundwater monitoring <br /> Tanks at site Four former underground storage tanks (used oil,three grades <br /> of gasoline) removed July 1986 <br />' Number of wells 30 (22 onsite, 8 offsite) <br />' GROUNDWATER MONITORING SUMMARY <br />' Gauging and sampling date 17 September 2003 <br /> Wells gauged and sampled: IW1,MW2-MW5,MW8,MW 10,MW 13,RW1,RW2,RW4, <br /> SWI, SW2, UVB-MW1, UVB-MW2, V1-V4 <br /> Wells gauged only- MW 1, MW6, MW7, MW9 <br /> Groundwater flow direction: Northeast <br /> Groundwater gradient: 0 005 <br />' Remediation system status during <br /> groundwater monitoring event. UVB system not operating <br /> Well screens submerged. IW 1, MW 13, RW 1, RW2, RW4, SW 1, SW2, UVB-MW 1, <br />' UVB-MW2, V3, V4 <br /> Well screens not submerged MW 1-MW 10, V1, V2 <br /> Liquid-phase hydrocarbons Not observed or detected <br />' Laboratory TestAmerica, Inc , Nashville, Tennessee <br /> I <br />' 4%PrUJeLts57,942Nj w ter\wp\gC9030942m1 Juu <br />