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1 aa <br /> INC <br /> that all potential VOC source points at the LNC property must be evaluated Furthermore, <br /> shallow soil gas data collected on and adjacent to the LNC and Ackel properties by DTSC <br /> duringNovember, 1995 indicate additional source points for VOCs may be resent <br /> � P Y P <br /> ' immediately east of the LNC property and possibly adjacent to the LNC property to the <br /> south that were previously unidentified DTSC staff have stated these data suggest there <br /> ' may be either (1) additional source areas in or around the LNC property or (2) that the <br /> sewer or storm drain system may be transporting VOC-bearing liquids along or through the <br /> LNC property, possibly from offsite sources <br /> ' The new soil gas data have indicated that additional site characterization work should be <br /> conducted to assist in the determination of source areas and the vertical and horizontal <br /> ' extent of volatile organic compounds in the subsurface at the LNC facility and immediate <br /> surrounding area prior to design and implementation of a soil vapor extraction remediation <br /> ' system In addition, information regarding the subsurface lithology and soil properties will <br /> be obtained to assist with the remediation design <br /> The area of this investigation includes the legal property boundary of the LNC property <br /> and the legal property boundary of the property owned by Ms Norma Ackel The overall <br /> ' site is approximately 2 0 acres in size as shown on Exhibit 1 <br /> ' This workplan presents the scope of work and field protocols for drilling and sampling <br /> borings, the soil gas survey, and onsite laboratory analysis Precision Sampling, Inc has <br /> ' been retained to collect soil samples, Einarson, Fowler & Watson has been retained to <br /> perform the soil gas sampling, and Onsite Environmental Laboratories, Inc has been <br /> retained to perform analysis of the soil gas samples utilizing a mobile laboratory equipped <br /> with a GC/MS while sampling is in progress <br /> 12270020 025 2 <br /> 1 <br />