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y` August 5, 1988 AGS Job No. 38033-1 <br /> f Marlowe Properties, Stockton, California <br /> water at a site approximately 1 mile southwest that is currently <br /> being monitored by Applied GeoSystems has fallen approximately 15 <br /> feet. <br /> A ground-water sample was collected from the air-fluid interface <br /> in the monitoring well for subjective analyses by lowering <br /> approximately half the length of a Teflon bailar past the <br /> interface. The bailer was retrieved, and the water sample was <br /> examined for floating product, sheen, or other subjective .evidence <br /> of hydrocarbon contamination. Obvious moderate product odor was <br /> detected in monitoring well MW-1. After subjective analyses, the <br /> monitoring well was developed by surge-pumping with a submersible <br /> electric pump. A total of 55 gallons of ground water was removed <br /> Brom well MW-1. <br /> Atter well development, ground-water samples were collected from <br /> the monitoring wells by lowering a clean Teflon bailer past the <br /> air-water interface to a point approximately 3 feet below the <br /> interface. The bailer was then recovered and the sample slowly <br /> transferred to laboratory-cleaned, 40-milliliter glass volatile <br /> - - - - organic analysis-vials.-- -Concentratedhydrochloric acid Was added <br /> to each sample as a preservative. The sample containers were then <br /> labeled and immediately placed in iced storage. Chain of Custody <br /> Records were initiated by the geologist and accompanied the <br /> 10 <br /> App1100' 0990Sy010Ms <br />