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UG 24 '94 6E;ff <br />UG�� T ROSEVILLE FKD M : P AV C F01, <br />A SKI <br />STANDARD.,OPERATING PROCEDURES <br />RE: EXCAVATION SAMPUNG (SOIL•.AND WATER) <br />SOP -2b <br />Water _ <br />Excavation water samples are not advised, because: soil: particles typically, present may <br />affed the sample. However, If required, water samples are collected either directly from <br />the'ig ei rsurface, If accessible, by. dipping the sampling container, or -from a clean bailer <br />or similar -sampling device. lowered Into the excavation. Water samples may be, collected <br />from ,the excavating equipment bucket, if necessary. Depending, on. theintended <br />analyses, 0.6 to' 1 -liter plastic or glass containers, or 40 -milliliter glass, volatile organic <br />anatysis--°(VOA) vials, with "Teflon".septa, are typically used as sample containers. <br />For volatile organic analyses, the water sample is decanted Into each VOA vial In such <br />a manner that there is no meniscus at the top of the vial. A cap Is quickly secured to the <br />top of the vial. The vial is Inverted and gently tapped to see If air bubbles are present. <br />If none are present, the vial IIs_labeled and refrigerated for delivery, under -strict. chain -of - <br />custody, to the analytical iaboretory, label information typically Includes a unique sample <br />Identification number, Job Identification number, sampler identification, date, and time. <br />ATT AOR-M"Y twd <br />