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 25 sir. CHAIRMAN BAGOFF: Mr. Alper, do you have any questions? MR. ALPER: Yes. So when you're talking about rock bolts in place, were you just say the work would have to be done outside of the allowed area of disturbance for that to happen? THE WITNESS: That is correct. MR. ALPER: Okay. Your GSI that you used when you did the number, it says 20, what was Langan's? THE WITNESS: 65. MR. ALPER: 65. And is your 20, is it a conservative number, is it the worst possible number? THE WITNESS: There's a table that we use to figure -- that corollate the GSI numbers and the RQDs, and so you look at it, if it's zero to 25, for example, it's this, it should be this and so you go down the line. So we tried to make it equal to or at least match what is recommended. MR. ALPER: Okay. Is there a definition of a major rock slope as used in -- where it says, for major rock slopes with a consequence of failure is severe. Obviously the