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The best approach for avoiding the detailed trenching requirements is to perform sampling and <br /> other procedures without entiry into excavations. Use of a backhoe to bring up samples, use of 4 <br /> long-handled sampling devices, and similar techniques are recommended. <br /> 204.4 REQUIREMENTS <br /> 204.4.1 Preliminary Requirements <br /> r I <br /> L I <br /> Certain government agencies (e.g. California) require a permit to perform excavation <br /> r operations. f <br /> L <br /> i� <br /> rj Before,' digging, determine or have the client determine if underground 'ustallations, such las <br /> L sewer,'water, fuel, or electrical lines are to be encountered, and if so, determine the exact <br /> L1 locations of the lines. Information can be obtained by contacting Underground Service Alert <br /> (consult local telephone directory for toll-free number), local utility companies, and the owner <br /> of the property on which excavating operations are planned. <br /> i <br /> Trees, boulders, and other surface encumbrances, located so as to pose a 'potential hazard to <br /> C!, employees must be removed or made safe before the operation begins. E <br /> �s <br /> I <br /> r 204.4.2 Placement of Excavated Materials E <br /> I+ <br /> Eli <br /> r, I <br /> it <br /> ' Ih <br /> L 1{ <br /> I�9 <br /> : <br /> Revised: 11/93 HS-204-2 1 Woodward-Clydfe ; <br /> 1 <br />