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Landfill Gas Migration Monitoring Well Installation Report October 2009 <br /> Foothill Landfill Project No.03160203 <br /> 1.0 INTRODUCTION <br /> This report presents the results of the landfill gas (LFG) migration monitoring well <br /> installations at the Foothill Sanitary Landfill (FSL) in accordance with California <br /> Code of Regulations (CCR) Title 27 Section 20925. The site is located about 8 miles <br /> east of Linden, California as shown of Figure 1. Twenty-four LFG wells were <br /> installed around the perimeter of the landfill at the locations shown on Figure 2, per <br /> the project's plans and specifications (Figure 3). <br /> Vector Engineering, Inc. (Vector) provided Construction Quality Assurance (CQA) <br /> services during the construction of the 24 landfill gas (LFG) migration monitoring <br /> wells at the Foothill Sanitary Landfill, which began on July 29, 2009 and was <br /> completed on August 17, 2009. Vector's scope of work during the project included <br /> the following tasks: <br /> • Logging and classifying soils encountered during drilling in accordance with <br /> Ask Title 27 CCR Section 20925(d). <br /> • Documenting LFG probe well construction, including depths of probes, pea- <br /> gravel sections, and bentonite seals. <br /> • Providing the San Joaquin County Environmental Health Department (EHD) <br /> inspectors with hand-written preliminary soil logs before each well <br /> construction, notifying Public Works when a permeable sand lens is <br /> encountered in the designed bentonite seal zone, and answering technical <br /> questions regarding soil characterization. <br /> • Providing brief daily reports to the Field Engineer each day, and information <br /> required for well completion reports to the Contractor. <br /> • Providing a certified report summarizing and presenting the results of the <br /> project. <br /> Vector Engineering, Inc. • 143E Spring Hill Drive•Grass Valley, CA 95945•(530)272-2448 <br /> 1 <br />