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WORK PLAN <br /> Husky Crane Inc. <br /> 2373 Mariposa Road <br /> INTRODUCTION <br /> Purpose <br /> The purpose of this work plan is to describe the procedures and methods to be <br /> used in a soil and groundwater investigation at the site known as Husky <br /> Crane located at 2373 Mariposa Road in Stockton, California. The soil and <br /> groundwater investigation is part of the continuing work required by the <br /> State Water Resources Control Board's Leaking Underground Fuel Tank <br /> (LUFT) manual and the San Joaquin County Environmental Health Division <br /> (EHD) when evidence of an unauthorized fuel release has been found. The <br /> project has been assigned a SITE CODE of 1672 by the EHD. <br /> Discussion <br /> Two underground storage tanks (USTs) last reported to have contained <br /> gasoline were removed from the site. Analyses of soil samples indicated <br /> significant levels of gasoline, diesel and motor oil. Because of the positive <br /> analytical analyses, the EHD required additional work to determine the extent <br /> of possible contamination. Subsequent work was carried out by others but did <br /> not fully address the concerns of EHD. In May of 1999, William Dubovsky <br /> Environmental (WDE) was contracted by the property owner to provide <br /> services to comply with the EHD requirements which will ultimately lead to <br /> case closure. The initial phase of work is to carry out a soil and groundwater <br /> investigation in the area of the removed USTs which is in compliance with <br /> the EHD requirements. The project was discussed with Mr. Michael Infurna <br /> Jr. Senior REHS of the LOP/Site Mitigation Unit 4 of the EHD. This work <br /> plans sets out the initial scope of the soil and groundwater, investigation in <br /> accordance with the discussions with Mr. Infurna. <br /> Although there have been various investigative efforts by others addressing <br /> the spread of contamination, some significant data has not been developed. <br /> WDE intends to collect the required data to begin a complete soil and <br /> groundwater investigation of the subject site. At this time one boring will be <br /> drilled and sampled in the approximate center of the tank removal <br /> excavation. The boring will be sampled to beyond the recent historical <br /> maximum depth of groundwater. Soil and groundwater samples will be <br /> analyzed for the constituents required in the LUFT manual for unknown <br /> fuels. The findings of this soil and groundwater investigation will be used to <br /> assess the vertical extent of soil contamination, determine the depth to <br /> groundwater, and to determine the current condition of the groundwater <br /> below the tank removal excavation. <br /> WILLIAM DUBOVSKY ENVIRONMENTAL <br />