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B. Boring locations will be cleared for underground obstructions by the County prior <br />to drilling. The Contractor shall hand auger each well location to a depth of five <br />feet before drilling, as an additional precaution against hitting subsurface <br />obstructions. <br />1.06 QUALITY ASSURANCE <br />A. The Contractor shall hold a C-57 General Contractor's License valid in the State of <br />California. The County will obtain necessary well installation permits. Water for <br />the well installation process will be made available from the on-site water supply <br />well. <br />B. The County will retain the services of an on -geologist, which will prepare a <br />geologic log based on the drill cuttings and soil samples, and oversee the <br />construction of the well and the collection of soil gas and hydropunch samples. <br />1.07 MOBILIZATION/DEMOBILIZATION <br />A. Mobilization shall include delivering to the landfill site and work areas all <br />necessary uncontaminated equipment, tools, materials and supplies in good <br />working order; and establish a work force sufficient to commence and sustain the <br />scope of work. Demobilization shall include removing from the landfill site and <br />work areas all equipment, tools, surplus materials and supplies, and debris <br />generated by the well installation process. All mobilization/demobilization costs <br />are contained in the line item provided on the attached bid sheets. <br />B. Installing well casing and well pack and other down -hole items, and neat cement <br />seal in the temporary borings, shall be in the presence of a San Joaquin County <br />Environmental Health Department (EHD) inspector. The Contractor shall give <br />the EHD two working days' notice of the intent to perform such work. The <br />Contractor shall record the name and title of the EHD inspector. Work done <br />without EHD inspection is subject to rejection. If rejected, the Contractor shall <br />remove the rejected work by over-drilling or other method as directed by the EHD <br />at the Contractor's expense. <br />1.08 SUBMITTALS <br />A. The Contractor shall submit on a daily basis, reports containing the work completed, <br />the equipment on-site, and the personnel on-site. <br />B. The Contractor shall submit Driller's Log for each completed well. <br />C. The Contractor shall submit a Well Development Record. <br />Corral Hollow EMP Man Rev2Mar 22-07.DOC Page 20/8 February 28, 2007 <br />