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• The height of the watcr column within the well was calculated by subtracting <br />the depth to water from the total depth of the well. The volume of this water <br />column was calculated using the relationship V=3,14rzh. Where V is the <br />volume of water in cubic feet. r ia the radius of the well in feet and h is the <br />height of the water column in fcet. <br />. The contract laboratory prepared the samole containers to conform to EPA- � <br />recommended preservation techniques for the analytes of concern. _. <br />• Groundwater samples were collected with a clean disposable bailer. Sample <br />containers were open only as long as necessary to collect the samples. <br />• Sample bottles were labeled with a sample number, date, time, and G-Logics � <br />employee's name and were stored in an ice chest containing frozen "blue � <br />ice". Chain-of-custody procedures were followed to document sam�+le <br />handling. <br />• Before use, the sampling equipment was washed in a"Liquinox", rinsed with <br />tap water, and given a final rinse with distilled water. <br />All samples were stored in an ice chest containing froaen "blue ice" for preservatiou prior <br />to being fcrwarded to the analytical IaUoratory (using proper Chain-of-Custody <br />procedures). All soil sample containers were labeled with sample identification numbcrs, <br />the date, and the sampler's name. <br />�. <br />, �>° <br />d�i�) `> ;! <br />h�)),_ <br />q�rv� 1:,: ,+ .#�f3' ' �rU�,^'t.:'.,. � <br />� ft <br />. � <br />f) <br />1 <br />r , <br />01-0105-C•AB.doc <br />Copyrighl2001 G-Logics, Inc. Page if-0of Bd ' <br />{ <br />