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TAILGATE HEALTH AND SAFETY MEETING <br /> Before the start of field operations, a Tailgate Health and Safety Meeting will be conducted by <br /> the Project Manager or Health and Safety Officer to discuss anticipated risks and health hazards <br /> and the proper precautions that need to be observed. <br /> SOIL BORINGS AND SAMPLING <br /> Five (5) soil borings are proposed to be cored to a depth of 12 feet below ground surface (bgs) <br /> or 2 feet within the groundwater. Groundwater is anticipated to be at 10 feet bgs in these <br /> borings. <br /> The borings will be cored with a van-mounted rig equipped with a hydraulic-powered percussion <br /> drive sampler. Soil samples will be obtained with a probing tool lined with three (3) 1-inch <br /> diameter by 6-inch long brass tubes. The probing tool will be pushed or hammered hydraulically <br /> into the soil. The bottom brass tube will be retained for laboratory analysis. The open ends of <br /> the retained sample tube will be covered with Teflon material, capped with plastic end caps, <br /> labeled, double bagged in sealable plastic bags, entered into a Chain of Custody form and placed <br /> on ice in a portable cooler for delivery to a California DHS-certified laboratory for analysis. <br /> Soil samples will be collected at 2 foot, 5 feet and 9 feet bgs in each of the borings. A portion <br /> of each recovered soil sample will be placed in a sealable plastic bag, disaggregated to release <br /> any volatile petroleum hydrocarbons, allowed to set for a few minutes, and field screened using <br /> a Photo Ionization Detector (PID). Samples with high PID readings will be analyzed for Volatile <br /> Organic Compounds (VOCs). Soil samples will be examined, described and logged under the <br /> supervision of a California Registered Geologist using the Unified Soil Classification System <br /> (USCS). <br /> Groundwater sample will also be collected from each of the boreholes. <br /> All coring and sampling equipment will be cleaned prior to use to prevent cross contamination <br /> between borings. The sampling equipment and brass sample tubes will be cleaned using a <br /> solution of Alconox and tap water, rinsed in tap water and final rinsed with deionized water to <br /> prevent cross contamination between samples. Alconox is a non-phosphate detergent. <br /> After completion of the coring and sampling, the boreholes will be backfilled with bentonite <br /> chips, the chips hydrated and topped with a 2-foot plug of Portland cement or asphalt to grade. <br /> CRC Environmental Risk Management, Inc. Project P 2100-217-2 <br /> American Savings Bank 150 West 10th Street <br /> March 1995 2 Tracy, California <br />