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Moore Petroleum <br /> 5491 F Street <br /> Banta,California <br /> Page 4 <br /> obtained during the vapor extraction test,the initial extraction rate for the proposed vapor <br /> extraction system will be approximately 1161b./day. A temporary oxidation system should be <br /> used until the vapor extraction rate declines to approximately 10 lb./day as TPHg. At that time <br /> carbon adsorption will be a more cost effective emission control technology. A flow diagram for <br /> the SUES and air sparging system is illustrated in Figure 4. <br /> The air sparging system will consist of an air compressor and one air sparging well. The air <br /> sparging well will consist of a three-foot section of 2-inch diameter slotted well screen placed <br /> approximately 5 feet below the established depth to ground water. The well filter pack will <br /> extend one foot above the top of well screen and the remainder of the casing will be sealed using a <br /> bentonite grout slurry. Typical vapor sparging well construction details are illustrated in Figure 5. <br /> The proposed air sparging well location is located near monitoring well MW-1 as illustrated in <br /> Figure 3. The design flow rate for the air sparging well will be approximately 20 scfin. To <br /> prevent the air sparging system from spreading the petroleum constituents, the air sparging <br /> compressor will only be energized when the SVES is operating. <br /> 5.2 System Permitting <br /> Permits will be required from the San Joaquin Air Quality Management District for construction <br /> �. and operation of the vapor extraction system. Building permits will also be required for system <br /> construction. Air sparging generally does not require permitting. <br /> 1 <br /> 5.3 System Abandonment <br /> The SVES and air sparging system data will be evaluated periodically to determine when vapor <br /> extraction is no longer effective. System monitoring objectives are discussed in Section 6. <br /> Following the conclusion of soil vapor extraction, the SUES equipment will be dismantled and <br /> removed from the site. If groundwater remediation is not complete the air sparging system <br /> operation will continue with groundwater monitoring until site remediation is complete. <br /> When site remediation is complete, vapor extraction, groundwater monitoring, and air sparging <br /> wells will be abandoned according to State, County and local requirements. <br /> 6.0 PROPOSED IMPLEMENTATION AND REPORTING SCHEDULE <br /> 6.1 Proposed Implementation <br /> The proposed remediation work may begin as soon as this plan is approved by the SJCEH. <br /> ERA02.004CAP <br />