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Civic Center Square • <br /> 2444 Main Street, Suite 215 <br /> Fresno, California 93721-2734 <br /> [209] 264-2535 - FAX 0209] 264-7431 !-�'►1 GEOMATRIX <br /> 1 <br /> 13 August 1996 96 <br /> n i P fir. OQ <br /> Project C3769 <br /> Mr. Michael Infurna <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> Post Office Box 388 <br /> Stockton, California 95201-0388 <br /> Subject: Work Plan for Limited Soil Assessment <br /> Alden Park/Renown Property <br /> Tracy, California <br /> Dear Mr. Infuma: <br /> This work plan describes a limited soil assessment to be performed by Geomatrix Consultants, Inc. <br /> (Geomatrix) on behalf of Chevron Pipe Line Company (CPL) at the Alden Park/Renown Property (the <br /> site) in Tracy, California. The site is located near the southwest corner of Beechnut Avenue and Forest <br /> Hills Drive as shown on Figure 1. This work plan is being provided to you for your information; the <br /> assessment is not being performed at the request of any regulatory agency. <br /> The assessment will consist of advancing two soil borings and collecting soil samples for laboratory <br /> analysis at the locations shown on Figure 2. The borings are located in the vicinity of former pipelines <br /> associated with the former Standard Oil Company reservoir No. 56. These pipelines carried locomo- <br /> tive fuel oil (Bunker Q. <br /> The soil borings will be advanced to a depth of 8.5 feet below ground surface (bgs) using a continuous- <br /> core, direct-push sampling system. This sampling system produces 2-inch diameter borings, which are <br /> backfilled with cement/bentonite grout after sampling is complete. The sampler will be fitted with <br /> brass sleeves. All soil sampling equipment will be cleaned between borings. Soil cores will be re- <br /> moved from the sampler at the appropriate sampling depth. Soil core samples collected for laboratory <br /> analysis will be removed from the sampler, sealed with Teflon®sheeting, plastic lids, and tape, labeled, <br /> and placed in an ice-cooled chest for subsequent delivery under chain-of-custody procedures to the <br /> laboratory for analysis. Soil samples not retained for chemical analysis will be screened in the field for <br /> the presence of petroleum hydrocarbons and lithologically logged. Field screening will consist of <br /> evaluating the samples for visual evidence (discoloration) and olfactory evidence (odor) of petroleum <br /> hydrocarbons as well as measuring volatile organic compounds in headspace above the sample using an <br /> organic vapor meter. Lithologic logging will be performed using visual/manual procedures according <br /> Geomatrix Consultants, Inc. <br /> Engineers,Geologists,and Environmental Scientists <br />