August 13 2025, Planning Board Special Meeting Transcript - WEHI

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 18 prepared for this -- that were obtained by Langan on this project. So there was ten-feet of rock boring as well and we used that. That quality of that, that low quality, if you recall, I think it was C had a rock quality data of zero and 23 -- 0 percent and 23 percent of 100. And so we need to take that GSI number and lower it to an appropriate number. And so that's what we did. So we took a number on the Section C and ended up changing the GSI to 20 and our lowest numbers -- well, there's an isolated number there that frankly you can disregard, it's point 774 on Figure 3 on the bottom right. That's actually less than one. The slope is actually failing, but it's a very small area down slope and that, even if it is failing that's what it is in that location. It's very isolated. However, when you go up to the other cross sections and looking for the lowest factor of safety, the number on cross section C drops from a 1. -- drops from a 1.589 and 1.599 down to a 1.48. So that dropped as well. But more significantly if you go to Figure 4, that number also drops significantly down to 1.65 at the lowest value. From there 1.9 and change. MR. AFRAN: That was on cross section D? THE WITNESS: That was on -- yeah, cross section D, Figure 4.