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2. Upon arriving at the sample station, the ntopreine rubber ends of the sample lines are <br />checked for dirt and dust -accumulation. If necessaq, the sample. lines are flWhed with <br />distilled water. <br />I The prtssurctvacuum' line is connected to the vacuutn gage of the vacuum <br />hand pump, <br />The..Clamp oh the racuum line it openwd and the residual vacuum. rem -- on the. <br />ammg <br />Jysimeter unit 'is measured -andrecorded on the lysimoter sampling log. <br />4. The pressure/vacuum line -JS connected ta the pressure pump and ihe discharge (sample) <br />line opened- The disc harge line is hiserted into a zjca1 unprwerved 1 liter plastic bottle <br />prepared and supplied by the analytical laboratory. <br />The pressum pump is activated, forcing air into -the lysimeter. If additional pressu=- is <br />needed to retrieve the fluid more quickly, the Pressure is incr6zed until adquate flow <br />achieved- <br />6- TM sample is split to othei appropriately pr=rved bottles as neccsss'Y *Ibr the analytical <br />requirements. The samples = placed in an ice -filled chest to m.intaju :a temperatIm, f <br />0 <br />approximately 4 degrets Celsius during delivery to the lzbomtory under chahl-of-custody <br />procedures. <br />7- AAer the -sample is collected, the. lysitpeter vaicatira is reset (evacuated) to th, <br />Manufactumd recommended value using a*hand vacuum Pump. At this :•.•r r.. <br />lysimeter is tested to evaluate potential leaks that could cause -vacuum <br />pressure loss. The <br />pressurcivacumn rine is then cLimped'and the �Y• ttetcr secured. <br />23-483949-F0112310A325 <br />Copyrism 2W rjCWCi4,:4 Im <br />A-13 <br />July 14,20M <br />