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4 of 6 Pages <br /> the prescribed container for the tests required. Once full the <br /> container will be placed in a cooler containing ice until <br /> delivered to the lab within 48 hours of the sampling time Trip <br /> blanks will accompany all sample containers A Chain of Custody <br /> will be filled out by the sampler Detection limits must be <br /> supplied by the laboratory <br /> Well or Boring Abandonments : <br /> All wells and borings will be destroyed once no longer needed. <br /> The following steps will be followed. <br /> 1 Check well to see if the hole is open to its original drilled <br />' depth, if not clean out the hole. <br /> 2 The upper 20 feet of the well will be sealed with bentonite <br /> grout, or neat cement with 5% bentonite grout. The lower <br /> portion of the well can be filled with clean grout or sand <br /> whichever is more convenient. <br /> 3 impervious seals will be placed between aquifers, a depth of <br /> 20 feet for each seal if possible <br /> 4 All materials will be placed with a trime pipe if the depth <br /> is over 10 feet. <br /> HEALTH AND SAFETY PLAN <br /> GENERAL SAFE WQRK PRACTICES <br /> California Geophysical Group, Inc is responsible for the <br /> safety of all California Geophysical Group employees on-site <br /> All general safety guidlines and procedures will conform to. <br />' * 29 CFR 1910 120 <br /> * Standard Operating Safety Guides (U S E P A , Nov 1984) <br /> All containers will be labeled identifying them at to their <br /> contents Hazardous material will be labeled with yellow labels <br /> and identifying the person to contact <br /> All excavation/drilling work will comply with Title 8, Article G <br /> of the California Administrative Code and local ordinances <br /> Personnel are not allowed to eat or smoke on the site <br />' The project manager/safety officer is John Cussen 619 486 1320 <br /> The safety officer has the authority to suspend work anytime tic <br /> determines the safety provisions are inadequate to ensure worker <br /> safety <br /> r <br />