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UG 24 ' 94 0p ; 2 M "U6 , ST ROSEV ILLE �' P_o rA <br />Wfelw, a o. .. .. _ <br />STMURES <br />ANDARD�QPERATINQ PROC <br />C' •WATER) <br />• <br />• <br />ONi Al r_ =.. <br />P.1/1 <br />�C - -7 �t- q <br />Water . <br />Excavation water samples 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 water surface, if aocessiole, by. dipping the sampling container, or from a clean bailer <br />or slmilar„sampling device. lowered into the -excavation. Water samples may be collected <br />from ,#he 'excavating equipment bucket, if necessary. Depending on the intended <br />analyses 0.5 to 1.liter, plastic or, glass containers, or.40-mlililiter glass, volatile organic <br />:,� <br />analysis, OA) 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 veal Is.labeled and refrigerated for dellvm, under-strlct.chain•of- <br />custody to the analytical laboratory. label Information typically Includes a unique sample <br />Identification number, job Identification number, sampler identification, date, and time. <br />ATTACFQMMSOP-MM"'f 10” <br />e <br />