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6E'TTLER-RYAN INC. <br />WORK PLAN FOR MONITORING WELL INSTALLATION <br />at <br />Former Chevron Service Station #9-5775 <br />301 West Kettleman Lane <br />Lodi, California <br />Report No. 346408.09 <br />INTRODUCTION <br />At the request of Chevron Products Company (Chevron), Gettler-Ryan Inc. (GR) has prepared this Work <br />Plan to install three off-site and three on-site groundwater monitoring wells at the subject site. This work <br />was requested by the San Joaquin County Public Health Services — Environmental Health Division <br />(SJCPHS) in their letter of March 29, 2000 to further evaluate the extent of petroleum hydrocarbons in the <br />soil and groundwater on and to the south of the subject site. The proposed scope of work includes: <br />obtaining the required well installation and encroachment permits; obtaining an access agreement; <br />installing six groundwater monitoring wells; collecting soil samples for possible chemical analysis; <br />developing and sampling the newly installed wells; surveying the new wells; analyzing selected soil and <br />groundwater samples; and preparing a report presenting the findings of the investigation. <br />The scope of work described in this Work Plan is intended to comply with the State of California Water <br />Resources Control Board's Leaking Underground Fuel Tanks (LUF7) Manual and California <br />Underground Storage Tank Regulations, 1994, the CRWQCB Tri -Regional Board Staff <br />Recommendations for Preliminary Investigation and Evaluation of Underground Tank Sites, and San <br />Joaquin County Public Health Services (SJCPHS) guidelines. <br />SITE DESCRIPTION <br />The subject site is located between South Lee Avenue and South Pleasant Avenue adjacent to Kettleman <br />Lane in Lodi, California (Figure 1). The site was most recently developed as a service station with four <br />service bays, three dispenser islands, one sales kiosk, three 10,000 -gallon gasoline underground storage <br />tanks (USTs), one 1,000 -gallon waste oil UST, one 550 -gallon previously abandoned waste oil UST, and <br />one in -ground hydraulic hoist. All aboveground and subsurface facilities have been removed. The site is <br />currently an unpaved vacant lot. Locations of the previous facilities are shown on the Site Plan <br />(Figure 2). <br />PREVIOUS ENVIRONMENTAL WORK <br />The five former USTs, former hydraulic hoist, former dispenser islands and associated product piping <br />were removed on August 24, 1998. Soil samples were collected from beneath the USTs and product <br />6747 Sierra Court, Suite J • Dublin, California 94568 • (925) 551-7555 <br />