SITE INFORMATION AND CORRESPONDENCE

Home Browse Search

Work Plan Additional sampling Program Linden short stop Property Introduction Pursuant to the requests of the San Joaquin County Public Health Services Environmental Health Division (EHD) to Manuel Santos in a letter dated June 20, 1990, the following additional investigative work is planned for the Linden Short Stop property. The requests were made in response to the division' s review of previous site activities related to underground tank work compiled by WESTON and presented in the January 11, 1990 "Review of Tank Closure Data. " Issues to be Resolved by Additional Field Investigation Figure 1 provides a map showing the site and areas of investigation referred to below. o The soluble lead fraction in stockpiled soils needs to be resolved. o A sample from the excavation floor of Pit A needs to be collected. o The area around Pit B required re-excavation to remove remaining petroleum hydrocarbon residues and confirmation sampling needs to be accomplished. o The on-site irrigation well water should be analyzed for petroleum hydrocarbon residues. Work Plan Prior to the development of this Work Plan, additional excavation in Pit B (pipeline excavation) will have been completed. Hence, the remaining work to be accomplished is as follows: I,t)r o WESTON will collect a single composite soil sample from the . _ stockpiled soils for extractable lead analysis utilizing the California Waste Extraction Test. This composite will be collected from a minimum of four locations within the stock- pile. o A single soil sample will be collected from the bottom floor of Pit A at a minimum depth of 1' beneath the bottom. This sample will be analyzed for Total Petroleum Hydrocarbons as I' Gasoline (TPH-G) utilizing EPA Method 8015, for Benzene, L Toluene, Xylene and Ethylbenzene (BTX&E) utilizing EPA Method 8020 and for Extractable Lead utilizing the California Waste Extraction Test. /0 �