RE:RE:What is truly amazing is how this pad is designedJust a thought HuskySW, but if the solution did not intrude into the second liner, the detectors would not have gone into alert as gravity fed solution flows down the HLP top liner 24 hours a day to the sump as designed.
Other than possibly a greater volume of solution, it would been hard to detect and business as usual until the erosion finally undermined the stacked area.
It is really amazing the crest literally slid on the liner down the slope intact which is another indicator it slid due to undermining and why the dozer is sitting in a dish. Shouldnt take to long for the Geotech engineers to determine the cause.
If there was a main feed pipe cracked, separated, or broken, a lot of solution would have leaked at pressure, and we all know what liquid under pressure can do when concentrated in one area..