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• <br /> SMTH <br /> V <br /> 5.0 SCOPE OF WORK <br /> 5.1 Permitting and Scheduling <br /> law <br /> This task includes obtaining the necessary permits for drilling and well installation from <br /> PHS/EHD, scheduling field personnel and equipment, locating underground utilities, and <br /> performing any other necessary field preparation and job start-up activities. Permit <br /> applications and associated fees are contained in Appendix D. <br /> 5.2 Installation of Three Groundwater Monitoring Wells <br /> Three soil borings will be advanced to depths of approximately 30 feet using 8-inch diameter. <br /> V <br /> hollow stem augers. Locations of proposed borings are shown on Figure 2. Drilling will be <br /> conducted by a State-licensed (C57) drilling company. A field geologist will be present to log <br /> all drill cuttings and soil samples. Descriptions of soil types encountered, sample collection <br /> intervals, and well construction details will be recorded on boring/well logs and included in the <br /> tow PAR. Soil samples will be collected at five foot intervals and up to two soil samples per <br /> boring will be submitted for laboratory analysis of TPHg and BTEX. <br /> All drill cuttings will be placed in 55-gallon drums approved for hazardous waste storage and <br /> stored on-site pending laboratory results. Selected soil samples will be transported using <br /> chain-of-custody record to a State-certified laboratory for analysis of TPHg and BTEX by EPA <br /> methods 8015 (modified) and 8020, respectively. <br /> Soil borings will be completed as groundwater monitoring wells. The monitoring wells will be <br /> 60 constructed of 2-inch inside diameter PVC well screen and casing. A 0.010-inch well screen <br /> slot and #2/12 mesh sand pack will be used. Neat cement will be used to seal the wells in <br /> accordance with California Well Standards (December 1981). To protect the integrity of the <br /> wells, locking, water-tight well plugs will be installed on each well and a water-tight, locking <br /> wellhead labeled "monitoring well" will be concreted over each well. Based on the historical <br /> depth to groundwater in the area near the site, the wells are proposed to be constructed as <br /> shown on Figure 3. <br /> 95122\WP-0695.doc 3 <br /> V <br /> V <br />