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24 '94 0E; 2 �["- I ll�?�' T ROSEVILLE �R�o r�I N 1/1 <br />AA5 wj -c.,r <br />STANDAMOPERATING PROCEDURES <br />RE: EXCAVATION SAMPLING (SOIL•.AND WATER) <br />SOP -213 <br />Water <br />Excavation waters' mples are not advised, because soil. particles typically• present may <br />affect the sample. However, if required, water samples are collected either directly from <br />the wat®r surface, 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 />frorh fth'e `excavating equipment bucket, if necessary. Depending. on the Intended <br />F '®5 to' 1 -liter tactic or glass containers, or. 40 -milliliter glass, volatile organic <br />analyses;➢: p <br />analysis•s(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 mannee 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 is.labeled and refrigerated for delivery, under'strlct chain-of- <br />custodyjo the analytical labotai tory, label Information typically Includes a unique sample <br />Identification number, job Identification number, sampler Identification, date, and time. <br />A4rACMMff1ffio"W"'f 104 <br />