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05/16/1996 08:43 415-286-1069 VIRONEX PAGE 04 <br /> ' Wo fil a I I I <br /> �opro sxwsavvev Piout <br /> � rtdr ter�amp/er'..AV i= ��rnl,ex�d <br /> j•' nrive Ncad <br /> • t;arge 1:48' , (25.4 FAM)?!j' <br /> Outsido D4meter Screen-" <br /> ' • 41-1nck11641 mm) ExposeW. - <br /> Screen Lentil <br /> — <br /> ' • Can be used to sample floating •`+ <br /> layers (LNAPLs) and sinidng — <br /> layers (DNAPI.$) _ 5.tmpler Sheath <br /> • Assembled sampler contains only — <br /> three parts <br /> in Sealed <br /> ' = i7tsltlon <br /> • Sampler is completely sealed <br /> during ding A SEALED SCREEN -_ <br /> ' The Screen is completely Expendablesealed inside the Sampler <br /> . Sampler screens are avail a in Sheath while the sampler is — Drive Point <br /> stalnle63 steel or PVC driven to depth_ <br /> 1 • I • ." i J <br /> • "Grouta design allows i�i <br /> albando�iirl*irit grout to Scree. Th DRIVING <br /> pure dtt'ough sampler Screen The SCREEN POINT IS remains <br /> ' meet ASTM Method D 52919-92 - sealed while being driven from <br /> the surface. The sampler ween <br /> requirements \ t 5 In remains enclosed in the sampler <br /> Tool OD. body until it is deployed at Itis <br /> j desired sampling depth. <br /> ' The SCREEN POINT 15 is a hidden, 1 tR° . <br /> screen-type, groundwater safirpling <br /> device. The sampler is drivetirlo the <br /> desired depth in the formation then — S rMn <br /> ' exposed to*Wain a groundvvaterliiprnple. Bore unin.l <br /> The SCREEN POINT 15 desigruAliects TOOL SIZE DIAGRAM <br /> Geopmbe'!Systems'years;dlx#eience Sale:1:t <br /> t in designirti;gioundwater samp*.This <br /> tool offeiis d number of im' rtant <br /> advantage9to$iield.users. s: <br /> 7. 'ere, <br /> ' • SCREEN SIZE • MATERIAL CHOICES <br /> The large screen diameter on the SCREEN POINT 15 allows the Feld users can choose from either wino-wnund, stainless steel <br /> user to deploy either GeoproW Mini-Bailers or tubing with screens, or slotted PVC screens. wire-wound, stainless steel <br /> ' bottom check valves into the bore of the screen for sampling screens provide large,open areas for maximum recharge rates. <br /> both dissolved compounds and non-aqueous phase liquids Due to its inert nature,stainless steel Is the material of choice for <br /> (NAPU). The screen length is 41 inches(1041 mm)allowing for many eswimnmental sampling protocols. Slotted PVC Kreenf <br /> fast recharge from the formation. am law wst and am acceptable for many sampling protocols. •../ <br /> 1 <br />