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U <br />E. Driller shall select drilling methods according to the depth of the wells <br />specified. <br />F. Do not use drilling muds or liquids. <br />G Coordinate drilling with the Engineer to maintain a detailed written log <br />showing the materials encountered at each depth, depth of each boring <br />drilled, and the time required for drilling. Borings will be logged during the <br />entire drilling session by the Engineer. <br />H. Uncompleted Borings: <br />Provide secure, vandal -proof covers and apply safety precautions for <br />all uncompleted borings. <br />2. Measure and record depth of uncompleted borings left overnight <br />prior to commencement of drilling on next day. Redrill collapsed <br />borings at no additional cost to Owner. <br />Distribute spoils in the vicinity of boring. <br />J During drilling and well construction, all debris shall be disposed of in a <br />contractor provided container, or removed from the site, and the site left in a <br />neat and orderly condition on a daily basis. <br />till, WTAI:• Z 10101091 1,101NEIM <br />A. If impenetrable obstructions are encountered during drilling, cease drilling <br />and promptly notify the Engineer. The Engineer will determine whether to <br />abandon or to complete the well at the achieved depth. <br />B. Borings not completed as soil gas monitoring wells shall be backfilled with <br />cement slurry. <br />3.05 SOIL GAS WELL PROBE ASSEMBLY <br />A. Insertion of sampling tubing: <br />1. Thread sampling tubing through sections of probe pipe before <br />making pipe joints. <br />Soil Gas Monitoring Well Specs San Joaquin County -Public Works <br />Foothill Sanitary Landfill & 8 Solid Waste Division <br />Corral Hollow Sanitary Landfill Printed 10/10/2007 <br />