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Q—✓Jo'�"_'vD E =OAM rKUM P <br /> • 1.0 OBJECTIVE <br />' The objective of this procedure is to drive a sealed stainless steel or PVC screen to depth, deploy the screen, <br /> obtain a represfmtanve water sample from the screen interval, and grout the probe hole during abandonment <br />' The Screen Point 15 Groundwater Sampler enables the operator to conduct abandonment grouting that meets <br /> American Society for Testing, and Materials (ASTM) Method D 5299-92 requirements for decommissioning <br /> wells and borings for environmental activities(ASTM 1993) <br />' 2.0 BACKGROUND <br />' 2.1 Definitions <br /> Geoprobe*: A vehicle-mounted, hydraulically-powered, soil probing rnachtne that utilizes static force <br />' and percussion to advance small diameter sampling tools into the subsurface for collecting soil core, soil <br /> ;as, or groundwater samples. <br /> " Cegl2rnhe is a registered iradenarrk of Keir Engineering, Inc,Salina, Kansas <br /> IScreen Point 15 Ground%wer Sampler: The assembled Screen Point 15 Sampler(GW-1500K) is 15 <br /> inches (33 mitt) O D (outside diameter) x 52 inches (1321 min) overall length A stainless steel or PVC <br /> screen with an exposed screen length of 41 mahes (1041 mm)is utilized <br /> Casing Pallier: An assembly which makes it possible to retract the sampler string with extension rods <br /> protruding fiom the top of the probe rods The casing puller fbT units originally equipped with the GH-40 <br /> hainmer consists of the following <br /> PART NAMENUMBER QUA.VMT"Y <br /> Casing;Puff Bracket Assembly (GW-3337) (1) <br /> Casing Pull Plate Assembly(G'W-468) {l) <br /> Casing Pull Anchor Assembly (OW-3286) (1) <br /> Bolt, HHCS 1I2"-13 x 2" GR 5 PLTD (2) <br /> Lock Washer 1!2" P1LTD (2) <br /> These items may be obtained separately or as a Casing Pull Kit(GW-4600K) <br /> I Units(inginaily equipped with the Sri{-58 hammer or retrafitted with the 1GH-40 hammer require a different <br /> casing pullet kit Contact Geoprobe Systems for specific infonnation <br /> 2.2 Discuwion <br /> la this procedure, the assembled Screen Point 15 Groundwater Sampler (Fi— 2 ]A) is threaded onto the <br /> P a <br /> leading end of a Geoprobe probe rod and driven mLo the subsurface with a Geoprobe machine Additional <br /> probe rods are subsequently added and driven until the deswed sampling interval is reached While the <br /> sainpler is dhven to depth.O-ring seals at the dnve knead and expendable drive point provide a watertight <br /> ,,yytein Thtc system elim nates the threat of formation fluids entering the screen before deployment and <br /> assures sample integrity <br /> IStDndard Operati,ns Procedure Page 3 Screen Point 15 Groundwater Sampler <br />