SITE INFORMATION AND CORRESPONDENCE_FILE 2

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ME M O R. A ,N: D U NF , M LIFORNIA REGIONAL (NATER QUALITY.CONTROL BOARD CENTRAL VALLEY REGION 3443 Routier Road,Suite A Prone. {916) 361-5600 Satxamento, CA 95827-3()9$ Phone: Phone: 8-495-5600 TO: GORDON L. BOGGS FROM: ELIZABETH A. THAYER UGT Program Coordinator Associate Engineer DATE: 8 June 1992 SIGNATURE.- _ SUBJECT: PHILLIPS SERVICE STATION, 13975 EAST HIGHWAY 88, LOCKEFORD, SAN JOAQUIN COUNTY A meeting was held, 21 April. 1992, to discuss Robert Phillips' service station in Lockeford. Mr. Phillips, consultant, Darrell Nations, and his attorney, Charlotte Uram, requested the meeting to discuss closure of the site. Margaret Lagorio and Harlin Knoll , from San Joaquin County also attended the meeting. A list of those who attended is attached. Also attached are handouts provided by Mr. Nations. Ms. Uram reported that she was representing Mr. Phillips as a favor to Mr. Nations. Mr. Phillips had been an employee of Shell Oil Company. He retired from Shell and acquired a former Shell service station in 1983, intending to retire on the profits from the station. The station has been operated by Mr. Phillips since 1983. Mr. Phillips attempted to lease the station to Beacon in 1987. During a site assessment by Applied Geo5ystems (AGS), soil and ground water contamination were encountered and Beacon declined to lease the site. Mr. Phillips is $250,000 in debt due to the site investigation and, therefore, cannot quit working or sell the property. Mr. Phillips has applied for SB2004 funds and should be in Class B if his application is acceptable. Logs for the -4 wells installed by AGS in 1987, indicate mostly sandy soils, with clay stringers, down to ground water at about 61 feet. The wells were screened from depths of about 54 to 78 feet. Soil contamination (gasoline) was encountered in the borings for MW1, MW2, and MW3 from 30 to 60 feet. No soil contamination was detected in MW4. All four monitoring wells contained ground water contaminated with BTEX and gasoline; with up to 2749 ppb gasoline and 147 ppb benzene in MW2. The direction' of ground water flow is to the southwest with MW2 the only downgradient monitoring well . Two dry wells on site were suspected by AGS to act as conduits to ground water from surface spills and they recommended that the dry wells be abandoned. Sometime between November 1987 and June 1988, the dry wells were abandoned, covered over, or destroyed. Neither Mr. Phillips, AGS, nor Mr. Nations provided information, in their reports and letters, on the methods used. The underground tanks and product lines were excavated in 1990 under Mr. Nations' supervision. The depth of the .tank excavation was not provided in the 11 July 1990 report. Approximately 800 cu. yds of soil were excavated and stockpiled on site. Several soil samples were collected from the excavation. One of the samples from the bottom of the pit contained 390 ppm gasoline. Mr. Nations stated in his report, that "hydrocarbons remaining in site soils pose . little threat to ground water" and he used the leaching potential analysis and