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28 February 2011 <br /> AGE-NC Project No. 95-0106 <br /> Page 2 of 3 <br /> 2.1 . PRE-FIELD WORK PREPARATIONS <br /> A site specific health and safety plan will be prepared in accordance with Occupational <br /> Safety and 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. <br /> All field procedures will be overseen by an AGE representative under the supervision of <br /> a California Professional Geologist. <br /> 2.2. COLLECTION AND ANALYSIS OF AIR SAMPLES <br /> AGE proposes to collect passive integrated air samples from the crawl space beneath the <br /> residence at 104 West Beverly Place, CA and from the east and west areas of the site <br /> using six-liter Summa canisters. Each canister's initial vacuum will be measured and <br /> recorded to ensure the initial vacuum is greater than 25 inches of mercury (in hg). The <br /> sampling inlet on the canisters will be connected to a mass flow controller containing a <br /> particulate filter and calibrated to 3.8 milliliters/minute (ml/min). Air samples will be <br /> collected over a period of approximately 24 hours based on the calibrated flow of <br /> 3.8 ml/min. ': rr . <br /> For the crawl space, polypropylene tubing (PPE) or equivalent tubing will be connected to <br /> the mass flow controller inlet and inserted horizontally into the crawl space through a <br /> foundation vent or the crawl space access area. The Summa canister will then be opened <br /> to begin air sample collection. <br /> For ambient air samples, Summa canisters will be placed approximately 10-15 feet from <br /> the residence and 2-3 feet above the ground surface. The Summa canister will then be <br /> opened to begin air sample collection. <br /> Proposed air sampling locations are depicted in Figure 2. <br /> Air samples will be analyzed by a State of California Department of Public Health Services <br /> (CDPH)-certified laboratory for the following constituents: <br /> Advanced GeoEnvironmental,Inc. <br />