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2 . 07 BREAK- OUT TOOLS Remote breakout wrenches may either be manual or hydraulic and shall be used to connect or break tool joints forward of the drill rig . Drill rig rotational power shal not be used with remote wrenches to make or break tool joints . 2 . 08 TRACKING SYSTEM Tracking equipment shall be capable of determining the location of the cutting head at +/- 1 % of the depth . PART 3 - EXECUTION 3 . 01 PILOT BORE Construct a pilot bore at the centerline alignment and grade as indicated on the drawings . Circulate drilling fluids to maintain an open bore at all times . If the path of the pilot bore is successfully completed , then proceed with the reaming procedure , and pull the pipe from the end of the HDD path ( exit pit) to the beginning location of the HDD path (entry pit) . If the pilot bore cannot be successfully completed , then do not proceed with the reaming procedure until the owner , Owner's Representative , Engineer , and Contractor have met to discuss alternative options for the pipeline crossing . The pilot bore and reaming procedure shall be controlled by a magnetic survey system including accelerometers , magnetometers , connector wire , and survey probe . The guidance system shall be capable of measuring depth , location , pitch , and roll of the bore and shall be able to indicate depth up to 100 feet . 3 . 02 DRILLING FLUIDS Contain and dispose of the drilling mud in accordance with state and federal regulations and permit conditions . Install erosion and sedimentation control measures including straw bales to prevent drilling mud from spilling out of the entrance/exit pit . Monitor drilling fluids at the surface to avoid excessive downhole pressures . Limit pressures in order to not buckle the surface of the pipe during installation . Clean - up and dispose of any and all fluids that may be released or generated by this construction . 3 . 03 BORE HOLE REAMING AND PIPE INSTALLATION Upon completing the pilot bore and before pulling the drill pipe back through the bore , use oversized reamer as necessary to enlarge the bore to provide sufficient clearance for the pipe pull back . Attach pulling head and swivel and pull the pipe through the reamed hole with the end of the pipe closed to the bore hole . Pull pipe back in one continuous operation to avoid closure of the bore hole . 3 . 04 DELIVERY , TEMPORARY STORAGE , AND HANDLING OF PIPE AT SITE A . Delivery , temporary storage , and handling of the pipe shall be in strict accordance with the recommendations of the manufacturer . B . Before installation , check pipe and fittings for cuts , gouges in excess of 10 % of the wall thickness , buckling , kinking , or splitting . Remove any pipe section TECHNICAL PROVISIONS TP - 17 FAPublic Works\Capital Projects\Oslo Road Lateral J\BID DOCUMENTS\DIVISION 2 - Technical Provisions . doc