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08 February 2012 <br /> AGE-NC Project No. 95-0106 <br /> Page 2 of 4 <br /> 2.0. SCOPE OF WORK AND FIELD PROCEDURES <br /> AGE proposes to install, operate and maintain an active vapor intrusion mitigation system <br /> in the crawl space of the residence at 104 West Beverly Place, Tracy, CA to abate <br /> petroleum-impacted soil vapor intrusion within the crawl space. <br /> The scope of work will consist of the following tasks: <br /> • Permitting, Planning and pre-field work activities; <br /> • Installation of vapor intrusion mitigation system; <br /> • Collection and analysis of air samples; and <br /> • Preparation of reports. <br /> 2.1. PRE-FIELD WORK PREPARATIONS <br /> A site specific health and safety plan will be prepared in accordance with Occupational <br /> Safetyand Health Guidance Manual for Hazardous Waste Site Activities(National Institute <br /> for Occupational Safety and Health Administration, U.S. Coast Guard and U.S. <br /> Environmental Protection Agency, 1985). All field personnel will be trained in hazardous <br /> materials communication and will have completed a 40-hour Health and Safety Course as <br /> specified in OSHA Hazardous Waste Operations and Emergency Response Standard [29 <br /> CFR 1910.120(e)], and 8-hour annual refresher courses as necessary. Additional <br /> information regarding site information will be provided to parties upon request where and <br /> when available.Applicable site permits will be obtained from the San Joaquin County EHD, <br /> City of Tracy Building Department, and the San Joaquin Valley Air Pollution Control District "77g7 <br /> (SJVAPCD), if necessary. <br /> 2.2. INSTALLATION OF VAPOR INTRUSION MITIGATION SYSTEM <br /> AGE proposes to install a sub-slab depressurization (SSD) system in the crawl space at <br /> 104 West Beverly Place, Tracy, CA. The SSD system is designed to create a lower <br /> pressure within the crawl space relative to the pressure inside the residence. The vapor <br /> intrusion mitigation system was designed by Terra-Petra Environmental Engineering. <br /> The SSD system installation will consist of the following: <br /> • Four-inch diameter schedule 40 perforated polyvinylchloride (PVC) piping will be <br /> installed in the crawl space and secured to the underside of the residence flooring. <br /> ;lilranced GeoEnvironmental,Inc. <br />