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i{1 •fp • <br /> • Revised Monitoring Well Installation and Monitoring Report - April 2003 <br /> FAST AND EASY MART <br /> 244 West Harding Way, Stockton,California <br /> 1.0. INTRODUCTION <br /> At the request of Mr. Mike Ali the property owner,Advanced GeoEnvironmental, Inc. (AGE) has <br /> prepared the enclosed Site Assessment Report for the property located at 244 West Harding Way, <br /> Stockton, California. The scope of work included advancement of three soil boring, installation of <br /> three monitoring wells, ground water monitoring and sampling, laboratory sample analysis and the <br /> preparation of this report. The location of the site is illustrated'on Figure I and"a plan of the site is <br /> illustrated on Figure 2. <br /> This report has been prepared in accordance with guidelines established by the Central Valley <br /> Regional Water Quality Control Board (CVRWQCB) for the subsurface investigation of <br /> underground storage tank (UST) sites. Soil boring and monitoring well installation and sampling <br /> procedures for the site were outlined in Monitoring Well Installation Work Plan,dated 06 February <br /> 2003, prepared by AGE and approved by the EHD by letter. <br /> 2.0. BACKGROUND <br /> A gasoline station and mini-mart presently occupy the site. Two USTs were removed from the site <br /> in September 1998 by Stockton Service Station Equipment(SSSE).A new UST system was installed <br /> at the site in December 1998. <br /> 2.1. SITE DESCRIPTION <br /> The site is bounded on the north by Harding Way. Residential property lies south and west of the <br /> site;commercial property lies east of the site.A single structure occupies the southern portion of the <br /> site. <br /> 2.2. PREVIOUS INVESTIGATIONS <br /> It is AGE understanding that an environmental site assessment was performed on the property in the <br /> early 1996. Field observations indicated that hydrocarbons may have impacted the soil. One soil <br /> sample collected from forty feet below surface grade(bsg),had detectible concentration of petroleum <br /> hydrocarbons. Two ground water samples had low concentrations of volatile aromatic compounds. <br /> One of the ground water samples collected and analyzed contained total petroleum hydrocarbons as <br /> gasoline at a concentration of 0.28 milligram per liter(mg/1).Methyl tertiarybutyl ether(MTBE)was <br /> detected at 3.7 microgram per liter(gg/l). <br /> i <br />