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7 <br />L <br />SECTION 02776 <br />LANDFILL GAS EXTRACTION WELLS <br />PART 1 -GENERAL <br />1.01 SUMMARY <br />A. Section covers the installation of two landfill gas (LFG) extraction wells as shown <br />on the construction drawings and as specified herein. Providing wells accepted by <br />the regulatory agencies as suitable for extracting landfill gas from refuse outside dw <br />permitted limit of the landfill, as identified herein, is of the essence. <br />B. Related Sections: <br />1. Section 02200 - Site Earthwork <br />2. Section 02,773 — Geocomposite Drainage Layer <br />3. Section 02750 — High Density Polyethylene (HDPE) Piping <br />C. Existing Site Conditions <br />1. High Pressure Petroleum Pipeline <br />A high pressure petroleum pipeline, owned by Shell Oil, runs across the landfill <br />about sixteen feet offset from the north eastern fence line of the landfill. Drilling of <br />the wells is close to the high pressure pipeline; thus, the contractor is advised to take <br />extreme caution. Before any drilling work, the Contractor and the County shall both <br />call for Underground Service Alert (USA). During drilling, a representative of Shell <br />Pipeline must be present. The Contractor shall coordinate all drilling work with the <br />Shell Oil pipeline representative. <br />2. Drilling Area <br />a. Uncapped refuse has been discovered outside the limits of the permitted <br />landfill. The new LFG wells will be installed in the areas of uncapped <br />refuse; thus, work of this contract includes excavation of refuse or contact <br />with refuse. <br />b. The well drilling locations are on a slope and may have limited access. <br />Full access to the drilling location will include building a drill rig pad <br />with on site soil. The pad must be removed after drilling. The contractor <br />shall include building of the pads where required in his proposal. <br />SHAWENVIRONMENTAL, INC. <br />San Joaquin County — Extension of Cap Corral Hollow Sanitary Landfill — CH Closure Cap Ext Proj_Technical Specs 4-19-12 Revl.DocRev. 0, 04/05/2012 <br />Landfill Gas Extraction Well <br />02776-1 <br />