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/9 <br /> GECIVINMIX <br /> PROTOCOL <br /> DRILLING AND DESTRUCTION OF SOIL BORINGS <br /> 1.0 INTRODUCTION <br /> This protocol describes the procedures to be followed during drilling and destruction of soil <br /> borings. The soil borings will provide information about geologic conditions, soil engineering <br /> properties, and/or soil quality. If the soil boring is utilized for well installation, the well will be <br /> installed in accordance with the protocol INSTALLATION OF WELLS. <br /> The procedures presented herein are intended to be of general use and may be supplemented by a <br /> work plan and/or health and safety plan. As the work progresses and if warranted, appropriate <br /> revisions may be made by the project manager. Detailed procedures in this protocol may be <br /> superseded by applicable regulatory requirements. <br /> If required,permits for drilling of soil borings will be acquired from the appropriate agency(s) <br /> before drilling is initiated, and an underground utility check will be conducted before drilling <br /> begins. An underground utility-check will, at a minimum, consist of contacting a local utility <br /> alert service, if available. <br /> 2.0 DRILLING <br /> A DAILY FIELD RECORD will be completed for each day of fieldwork, and the original will <br /> be kept in the project files. <br /> The soil borings will be drilled using rotary,hollow stem auger, direct-push, or other appropriate <br /> method. In all rotary borings, compressed air will be filtered to remove oils before being <br /> circulated into the borehole. In mud rotary borings, appropriate drilling fluid additives, such as <br /> bentonite, will be used to maintain an open hole and to carry cuttings to the surface. However, <br /> organic drilling fluid additives will only be used with prior project manager approval. The <br /> DRILLING AND DESTRUCTION OF SOIL BORINGS Page 1 of 6 <br /> PROTO-DD.&c REVISION DATE-MARCH 1996 DD-1 <br />