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0111 <br /> SECOR www secor com <br /> INTERNATIONAL <br /> C�" E C ® R ��_�„Irl �O p�T + 3017 Kilgore Road Suite 1Do <br /> .2? ' r� [E r f T, 6 869� EL <br /> 0400 Cordova, <br /> ,A 85670 <br /> 916-861-0430 Fra <br /> 03 JUL 29 Ptd 12: 54 <br /> July 28, 2003 <br /> Mrs Kasey L Foley <br /> San Joaquin County Environmental Management Department <br /> 304 E Weber Avenue, 3' Floor <br /> Stockton, CA 95202 <br /> RE Fuel Line Upgrade Soil Sampling Report <br /> 7-Eleven Store Number 17334 <br /> 4501 North Pershing Avenue <br /> Stockton, California <br /> SECOR Project No 77EL 17334 43 0520 <br /> Dear Mrs Foley <br /> SECOR International Incorporated (SECOR) has prepared this letter on behalf of 7-Eleven, Inc (7- <br /> Eleven) to document the soil sample results obtained during the fuel line upgrade activities <br /> conducted at 7-Eleven Location No 17334 located at 4501 North Pershing Avenue in Stockton, <br /> California This work was conducted in accordance with the requirements of the San Joaquin <br /> County Environmental Health Department (SJCEHD) The soil sample collection was performed by <br /> SECOR Glacier Environmental, Inc (Glacier) was subcontracted by 7-Eleven to complete the fuel <br /> . line upgrade activities <br /> INTRODUCTION <br /> The purpose of SECOR's project involvement was the collection soil samples to assess subsurface <br /> conditions beneath the former product piping lines and dispenser Islands Specifically, SECOR's <br /> scope of work consisted of the following tasks <br /> • Preparation of a site-specific Health and Safety Plan, <br /> • Collection of soil samples beneath the dispenser Islands and the fuel line at the direction of <br /> the SCEMD specialist, <br /> • Laboratory analysis of soil samples collected from soil stockpiles and beneath the <br /> dispensers and product piping, and <br /> • Preparation of this report documenting the product piping upgrade and soil sampling <br /> activities <br /> SITE BACKGROUND <br /> SJCEHD files indicate that there are three underground storage tank (UST) sites with documented <br /> releases located near 7-Eleven Site No 17334 the Cardlock Gasoline Station at 4555 N Pershing <br /> Avenue (100 feet east and crossgradient of the site), a Shell Service Station at 4445 N Pershing <br /> Avenue (crossgradient of the site), and an Exxon Service Station at 4444 N Pershing Avenue <br /> . (crossgradient of the site) Exxon's well MW-9 is located adjacent to the 7-Eleven site property <br /> boundary The Cardlock facility was reportedly under investigation for diesel contamination, and <br /> received no further action in December 1997 Available SJCEHD records indicate the Cardlock <br />