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Site Assessment Work Plan Advanced Environmental Concepts, Inc. <br /> Prior to sampling, each -monitoring well will be purged of a:.minimum of four casing volumes of <br /> groundwater. The groundwater will-be pimped into appropriately labeled DOT approved 55-gallon <br /> drums and stored on-site. Groundwater:measurements-will be monitored and allowed to.stabilize <br /> within 10-percent of the previous measurements for pH, conductivity, temperature, and turbidity. <br /> Groundwater samples will'be collected using a new disposable plastic bailer for each well. The water <br /> samples will be transfdffed_to.clean 40 ml VOA vials having teflon septa, and one liter amber jars. <br /> Care will be exercised to--ensure that no air pockets are present in any of the vials. <br /> The VOA vials will be labeled,placed in a protective covering,stored on blue ice, and recorded on the <br /> Chain-Of-Custody Record. Samples will be analyzed by Baseline Analysis, a California certified <br /> analytical laboratory focated:in Huntington Beach, for TPH-gasoline BTXE, and MTBE according to <br /> EPA methods.8015 modified.and 8020,respectively. <br /> Project: AEC 96C-1917 5 <br /> •:ENvIFioNMENTAL CONCEPTS wrrH UEW6N IN MIND- <br /> 4400ASHE.ROAD.0206 • -BAKERSFIELD.CA93313 805/831-1646 FAX 8051831-1771 <br />