Laserfiche WebLink
ti <br /> .;ERVlC 3330 Data Drive <br /> `�. � Suite 100 <br /> ��. Delta -"_ JL,, Rancho Cordova, CA 95670 <br /> Environmental 9161638-2085 <br /> Consultants,Inc. FAX:916/638-8385 <br /> October 11, 1994 <br /> Mr. Kenneth Earnest <br /> Ultramar Inc. <br /> 525 West Third Street <br /> Hanford, California 93230 <br /> Subject: Soil Management and Sampling Plan <br /> Beacon Station No. 696 <br /> 2448 West Kettleman Lane <br /> Lodi, California <br /> Delta Project No. D093-916 <br /> Dear Mr. Earnest: <br /> Delta Environmental Consultants, Inc. (Delta), has been authorized by Ultramar Inc. (Ultramar) to <br /> assist with the management and sampling of soil during the replacement and reconfiguration of <br /> product lines and dispensers at Beacon Station No. 696, located at 2448 West Kettleman Lane, Lodi, <br /> San Joaquin County, California. The purpose of this letter is to provide a plan for the disposal of <br /> excavated soil and for the collection of soil samples from the trenches and stockpiles. The location <br /> of the site is shown in Figure 1 and a site map is included as Figure 2. <br /> F <br /> Project Background_ <br /> Prior to acquisition of the site by Ultramar in July 1990, the site was owned and operated by Conoco, <br /> Inc. The presence of petroleum hydrocarbons in soil and ground water beneath the site was detected <br /> prior to 1985. Since that time, numerous investigations have been conducted at the site. There have <br />! been 36 ground water monitoring and soil vapor extraction wells installed at the site and on adjacent <br /> properties. A total of 20 of these wells, and a domestic water supply well, have been previously <br /> destroyed. Three single-walled_underground fuel storage tanks were removed from the site in March <br /> 1989, and were replaced 'by three double-walled tanks. Remedial activities have included the <br /> installation of a soil vapor extraction system, which began operation in December 1989 and was <br /> i turned off in April 1994. <br /> Soil Management <br /> A Delta representative will be on-site to supervise the segregation of excavated soil and to collect soil <br /> E samples. During removal of the existing double-walled product lines, excavated soil will be <br /> monitored with a photoionization detector (PID). Excavated soil will be segregated into stockpiles <br /> based on the presence or absence of petroleum hydrocarbons, as determined by the PID readings and <br /> subjective analysis. Native soil which contains petroleum hydrocarbons may be overexcavated if <br /> warranted. Soil stockpiles will be covered with plastic at the end of each day. <br /> Soil which is acceptable to the Sacramento County Landfill will be transported to that facility for <br /> disposal, other soil will be transported to the Bio Industries, Inc. landfill in Red Bluff, California. <br /> Providing a Competitive Edge <br />