June 30, 2025, Planning Board Special Meeting Transcript - WEHI

19 of 70 sheets Page 73 to 76 of 175 08/07/2025 02:56:42 PM 73 process, the hauling process.1 MR. PLOCKER: Is your company the blasting2 contractor?3 THE WITNESS: No, they're not.4 CHAIRMAN BAGOFF: Do you have any other5 questions?6 Okay. Do any other members of the public7 have questions? Please come up, name for the record.8 THE PUBLIC: Robert Sharenow,9 S-H-A-R-E-N-O-W.10 A rather simple question. Let's talk about11 vibration. Based on soil that you found, the rocks that12 you found, do you have any idea on the average blasting13 that would take place as to how far, how, many feet or14 yards does your vibration carry?15 THE WITNESS: Well, as I testified we are16 recommending controlled blasting techniques. So if that17 is properly implemented the distance, rather than the18 magnitude, is truncated. Distance to which something is19 felt can vary depending, it's solely on the function of20 the linear distance and the amount of charge.21 THE PUBLIC: Give me an idea of linear22 distance, 200-feet, 500-feet?23 THE WITNESS: It'll vary by the amount of24 charge.25 74 THE PUBLIC: But it could carry a long1 distance, could they not?2 THE WITNESS: It depends on how it's3 supplied.4 THE PUBLIC: The reason I'm saying this, I5 live in the third house from the ridge line, when they6 built 280 back in 1969 we had to take everything off of7 the walls and off the shelves with the blasting that8 took place then. Thank you.9 CHAIRMAN BAGOFF: Thank you.10 Any other member of the public have any11 questions for Mr. Seel? Please come up and be12 identified. Seeing none.13 Thank you, Mr. Seel.14 Mr. Afran.15 MR. AFRAN: The questions did prompt a few16 questions from me.17 In answer to the last set of questions, the18 linear movement of sound and energy depends on a19 multitude of factors, is that correct.20 THE WITNESS: Referring to this last21 question, I was speaking to vibration. I wasn't --22 MR. AFRAN: Right. Well, the vibrations are23 a factor of the movement of energy through the rock and24 ground?25 75 THE WITNESS: Correct, yeah. But he1 mentioned sound.2 MR. AFRAN: I'm sorry. Sound also is a3 factor of the multitude of things, is that correct?4 THE WITNESS: To some extent, yeah.5 Absolutely.6 MR. AFRAN: Now, if you can't identify the7 linear projection because it depends on the amount of8 charge, then how could this board know or any member of9 the community know ahead

yeah.5 Absolutely.6 MR. AFRAN: Now, if you can't identify the7 linear projection because it depends on the amount of8 charge, then how could this board know or any member of9 the community know ahead of time what the expected10 impacts are?11 THE WITNESS: There would be a blasting12 plan, in that blasting plan there's a formula that will13 ascribe the amount of charge that the plan would use.14 MR. AFRAN: Would you repeat that.15 THE WITNESS: Yeah. So what I was saying is,16 within the blasting plan that we prepared in advance of17 this construction, there is a formula that would be18 presented that describes what I just testified to. I19 just don't have that number. But that's how it would20 work. There would be, the blasting contractor would21 prepare that and they would show how he intends to limit22 the amount of vibration energy.23 Is there any reason that you're aware of that24 Q. plan cannot be prepared in advance of the decision on25 76 this application? I don't mean in terms of time, is1 there any technical reason why that plan cannot be2 prepared now as a part of the application?3 THE WITNESS: Well, typically in my4 experience contractors are not yet engaged to do that.5 That would be the primary reason.6 MR. PLOCKER: And, again, it's a7 construction issue. It's not an issue for this board.8 MR. AFRAN: Well, I'm glad Mr. Plocker is9 testifying as an expert as to what is a construction10 issue and what is not. He's a lawyer here, he's not11 supposed to be testifying.12 MR. PLOCKER: And that's not what I was13 doing, Mr. Afran.14 MR. AFRAN: I think it is, but we'll move15 on.16 MR. PLOCKER: It is not.17 MR. AFRAN: Is there any reason you're aware18 of -- strike that.19 So in other words, it's often done or20 typically done that a contractor is retained later,21 after approval, but no reason why that blasting plan22 could not be prepared in advance, is there?23 THE WITNESS: I don't know of any reason why24 or why not. It's just typically the process works25