Laserfiche WebLink
LYSIMETER OPERATIONS INSTRUCTIONS <br /> On August 8, 2018, Lytle Water Solutions, LLC (LWS) and Elite Drilling Services, LLC (Elite <br /> Drilling) replaced existing porous cup lysimeters in the vicinity of the collection pond. After <br /> completion of drilling and installation,LWS delivered the included operational instructions written <br /> by Soil Management Systems(SMS)to Battle Mountain Resources Inc.(BMRI).These instructions <br /> can also be found in Appendix A. The following is a synopsis for vacuum application, sample <br /> collection, and lysimeter re-wetting for the lysimeters at site 2: <br /> Vacuum Application: <br /> (1) Un-clamp the green vacuum/pressure application line, keeping all others closed. <br /> (2) Using the smaller hand pump, connect to the vacuum/pressure application line. <br /> (3) Begin to eg ntly apply a vacuum to the line,making sure to keep the meter reading <br /> between 3040 millibar.Do not exceed 40 millibar. <br /> (4) Re-clamp the vacuum/pressure application line, and then detach hand pump. Keep <br /> all lines clamped until sample collection is necessary. <br /> (5) The lysimeter will naturally lose vacuum pressure over time,especially in dry soils. <br /> It is important to regularly check the pressure, and re-apply if it has been lost (see <br /> below). <br /> Sample Collection: <br /> (1) Open the clamps on both the green vacuum/pressure application and black fluid <br /> return/sample collection lines,keeping the white re-wetting line clamped shut. <br /> (2) Using the large bicycle pump,connect to the green vacuum/pressure application line. <br /> (3) Begin to eg ntly apply pressure with the bicycle pump.The deep lysimeter will require <br /> approximately 25 psi,and the shallow lysimeter will require approximately 13 psi to <br /> extract samples from those respective depths. These pressures will need to be <br /> maintained during the entire extraction period.It is important to note that if water <br /> is,in fact,present it may take a significant amount of time to properly evacuate <br /> all of it. <br /> (4) When all water has been discharged, or if there is no water to extract, air will begin <br /> to blow from the hose. Close the sample collection line and re-apply vacuum(see <br /> below). <br /> (5) Clamp all lines shut, and then remove pump. <br /> B-1 <br />