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2. Upon arriving at the sample station, the neoprene rubber ends of the sample lines are <br /> checked for dirt and dust-accumulation. If necessary, the sampic luxes are flushed with <br /> distilled water. <br /> t . <br /> I The pressuretvacuuni line is connected to the vacuum a of the vacuum d'pump. <br /> The.clamp on the vacuum line is opened and the residual vacuum.reInaining on the. <br /> -lysimeter unit'is m 'and iecorded on the lysimeter ling log. <br /> 4: The p um line js connected to'the pressure pump and the discharge (sample) <br /> line opened The discharge line is instrted into a.clean,ungrtserved l liter plastic bottle <br /> prepared and supplied by the analytical laboratory. <br /> S.• The pressure pump is activated, forcing air into-the lysimeter. If additional pressure.is <br /> needed to retrieve the fluid more quickly, the pressure is increitsed until adequate flow is <br /> achieved_ <br /> 6. The sample is split to other appropriately preserved battles as neccssary'for the analytical <br /> requirements. The samples arc placed in an ice-filled chest to maintain a temp ®f <br /> approximately 4 degrees Cehiw during delivery to the laboratory underf-c y <br /> procedures. t <br /> 7_ =After the 'sage le is collect the. siioeter vacumn is reset_- p � ly (evacuated) to the <br /> manufactured recommended value using a°hand vacuum pump. At this time,,the <br /> lysirneter is tested to evaluate potential leaks that could cause vacuum <br /> pressure loss. The <br /> P. line is thea clan4wd and the lysimeter secured- <br /> 23483849-FOIU31OR325 A-13 July 14,1004 <br /> i"e° J'aeF,WB4P.�V4Te sBK:., <br />