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2. Upon arriving at the sample station, the neoprene rubber ends of the sample Pines are <br /> checked for dirt and dust-accumulation If necessary® the sample-lines are flushed with <br /> distilled water. <br /> 3. The pressure/vacuum line is connected to the vacuum gage of the vacuum hand pip <br /> The.clarnp oil the vacuum line is opened and the residual vacuum.remaining on the. <br /> lysimeter unit is measured'ai d iecorded on the lysimeter sampling log. <br /> 4. The pressurelvacuum line js connected pressure pump and the discharge (sample) <br /> line opened. The discharge lino is inserted into a-clean, impteserved I liter plastic bottle <br /> prepared and supplied by the analytical laboratory. ' <br /> 5_ The pressure pump is activated, forcing air into-the lysimcter. if additional pressure is <br /> needed to retrieve the fluid more quickly, the pressure is increased until adequate flow is <br /> achieved. <br /> 6- The sample is split to other appropriately preserved battles as accessary-for the analytical <br /> requirements_ The samples arc placed in an ice-filled chest to maintain a. temperature cif <br /> approximately 4 degrees Celsius during delivery to the laboratory under chain-.of..custody <br /> procedures. <br /> 7_ =After the <br /> sample is collected, the. lysimeter vacuum_is reset (evacuated) to the <br /> manufactured recommended value using a'hand vacmm pump. At this time, the <br /> lysirneter is tested to evaluate potential leaks that could cause vacuzmct pressure loss. The <br /> pzrssurzivacm-line is thea clampedand the lysimeter secured. <br /> `23483849-Fo1\231OR325 A-13 <br /> July 14,200 <br /> COPYdSM IM Kjobrd'sa.Ins. <br />