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r 5 Y d <br /> �' ��w�`',�� ,�J �, e�Ee" .r� ,�, ..a � `��s.' .�� ,'�v.- ���;q:'. -y, `• yak «.� 4 .� �;? .� ^�;,. <br /> 4 <br /> a <br /> wog q, <br /> s <br /> FIELD PROCEDURF—R <br /> The following section desrribos field procedures that were completed by Delta <br /> performance of the tasks involved with this project, p<,sonnel in the <br /> R <br /> I 0M$ ECTiVE <br /> ANAI,Y9I5 OF{;ROUE^D WATER <br /> Prior to purging of ground tvaler monitoring wells,a water sample w,as collected from each monitoring t <br /> well for subjective anal SLs- rJng <br /> Y The retrieving of the sample iyvolvecl gently lowering a clean,disposable, <br /> Teflon bailer to approximately one-half the hailer length past the a!r/llquid interface. The <br /> then retrieved,and the ssn�pl bailer was <br /> r e containe d within,the bailer was examined for flouting product levels and <br /> aPPearance of petroicum <br /> Product sheen, <br /> i <br /> 2.0 GROUND WA'T'ER MITI FREE-FLOATING PROT <br /> A water/petroleum product interface r )LrCT DEMI DR.,-$'!!I ATdAN ' <br /> was used to determine free rgduci thickness and <br /> ►vtiter depth it,each well. if a free-floating probe raduct la p ground � <br /> g P y..qr was not detected by the interface a i <br /> " tip of the probe was subjectively anal probe, the <br /> analyzed for product sheen. <br /> 3.0 MONITORING ftl.L DMLOP'u ; <br /> Monitoring wells were purged using a cerFtrifuga!pu:nE�ca PUDDING ,t*ID SAMPLING { <br /> r <br /> Per rainute. Ground water removed from the wells was stored in SS.galionbarrelsumthe site. The f <br /> barrels were labeled with corresponding mt.•:"toning well number and date;orpurging, 71ee <br /> be collected from the storage barrels In a vacuum tank and transported to n apprope Purge water will <br /> treatment and/or disposal, After purging,ground"v' -r levels Vit;re allowed to sta3 E ze. A watersample <br /> ,ty for <br /> was then removed from each of the wells by use of a Teflon bailer, Samples evere collected in air-ti <br /> virls appropriately labeled and stared on ice from the lime of er y <br /> to the laboraloty. A chain-pt-custody form was cotnpleled to ensure sample Il through <br /> rhe time of delivery <br /> samples were transpa'led to the laboratory and analyzed within the EPA-specified holding times fo ound water <br /> requested analyses. g r the <br /> ft <br /> I <br /> i <br />