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prepared this workplan. A site-specific health and safety plan will b e <br /> prepared for the site and will be present on-site at all times. <br /> TASK 2 - OBTAIN NECESSARY PERMITS <br /> ASE will obtain a drilling permit from the San Joaquin County PHS-EI-ED. In <br /> addition, our client and the San Joaquin County PHS-EHD will be notified <br /> of the drilling date at least 48 hours prior to all scheduled field work. ASE <br /> will also notify Underground Service Alert (USA) of the project at least 4 8 <br /> hours prior to subsurface drilling to have underground utility lines <br /> marked in the site vicinity. <br /> TASK 3 - DRILL TWO SOIL BORINGS AT THE SITE USING A CPT TO <br /> DETERMINE THE LITHOLOGY AND PRELIMINARY <br /> CONCENTRATIONS OF CONTAMINANTS IN SOIL AND <br /> GRO UNDWATER BENEATH THE SITE <br /> ASE will drill two soil borings at the site using a CPT. These proposed <br /> boring locations are shown on Figure 3. The CPT will be advanced to its <br /> total depth collecting lithologic and hydrogeologic information as the CPT <br /> boring is advanced. Once the lithologic information is known, a second <br /> boring will be drilled adjacent to the first boring for the collection of a <br /> capillary zone soil sample and discrete depth groundwater samples. <br /> An undisturbed soil sample will be collected at the capillary zone for <br /> analysis. The sample will be collected in brass tubes using a split-barrel <br /> drive sampler advanced into the ground using direct push. Each sample <br /> will be immediately removed from the sampler, trimmed, sealed with <br /> Teflon tape and plastic caps, secured with duct tape, labeled with the site <br /> location, sample designation, date and time the sample was collected, a n d <br /> the initials of the person collecting the sample. The samples will b e <br /> placed into an ice chest containing wet ice for delivery under chain of <br /> custody to a CAL-EPA certified analytical laboratory. <br /> Soil from the remaining tubes not sealed for analysis will be removed for <br /> hydrogeologic description and will be screened for volatile compounds <br /> with an organic vapor meter (OVM). The soil will be screened b y <br /> emptying soil from one of the tubes into a plastic bag. The bag will b e <br /> sealed and placed in the sun for approximately 10 minutes. After t h e <br /> hydrocarbons have been allowed to volatilize, the OVM will measure the <br /> vapor through a small hole, punched in the bag. These OVM readings will <br /> be used as a screening tool only since these procedures are not a s <br /> rigorous as those used in an analytical laboratory. <br /> 574 West Grand Line Road, Tracy, CA Workplan — June 2000 <br /> -4- <br />