June 4, 2025, Planning Board Regular Meeting Transcript - WEHI

06/20/2025 06:55:03 AM Page 29 to 32 of 101 8 of 41 sheets 29 from high and discharging at the low point in the1 landscape by the wetland. To have a seasonal high water2 table below the elevation of the wetland, again, makes3 no sense.4 That was it. Thank you.5 CHAIRMAN BAGOFF: I have a question.6 I have some follow up questions for the witness.7 Q. CHAIRMAN BAGOFF: Go right ahead, sorry.8 So let me be clear, when you are reciting the9 Q. wetland figures -- I'm sorry, the high water table10 figures, you're citing the applicant's calculations?11 Yeah, all the estimated seasonal high water12 A. tables are from the applicant's soil survey or soil13 investigation.14 Now, Mr. Walsh testified that he thought their15 Q. elevations were incorrect because the actual water16 tables higher based on what the mottling showed. Is17 this similar in direction to what he was saying?18 Yes, it is.19 A. Okay.20 Q. So you're making, you're illustrating now by21 comparing these measured points from the applicant with22 the situation with the actual wetlands elevation, high23 water table?24 Correct.25 A. 30 Thank you.1 Q. Now, if you would be kind enough to turn to slide2 -- they're not numbered. With the arrows. The blue and3 violet arrows. That's it. Thank you.4 I want to be clear that this is understood, the5 blue arrows represent the current movement of water6 across the site as conditions presently are, is that7 correct?8 That's correct.9 A. And your inclusion of the pink arrows show10 Q. movement after the development is constructed, is that11 correct?12 That's correct.13 A. Okay.14 Q. Now, when you say that -- well, if you look at15 the lower left-hand corner -- well, strike that.16 If you look in the middle at the top you see blue17 arrows moving to the right. Essentially perpendicular.18 Do you see that? No, on the other side. No, on the19 other side. That's it. Yes. On the right side -- left20 side, excuse me, my apologies. On the upper right side21 there's four arrows in blue. Now, those are directed to22 the wetlands in the gray mottling, is that correct?23 Correct.24 A. Mottling I mean the gray speckles on the map.25 Q. 31 Now, that water after construction will go where1 on your chart?2 Well, some of it, anything outside of the3 A. development footprint will continue toward the wetland.4 But anything below the ridge line that would normally or5 currently flow toward

1 on your chart?2 Well, some of it, anything outside of the3 A. development footprint will continue toward the wetland.4 But anything below the ridge line that would normally or5 currently flow toward the wetland would be collected.6 Now, those four blue arrows on the left side,7 Q. those would be redirected?8 The upper part of those arrows, yes. Because it9 A. starts at the ridge over here somewhere.10 Okay.11 Q. So this is the part that flows.12 A. That's why there's more drainage area lost on the13 Q. eastern side than the western?14 That's correct.15 A. Okay. Thank you.16 Q. And I see the pink arrows on the lower left-hand17 corner going into the basin, you see that?18 Here?19 A. Yes. And then there is an arrow going off the20 Q. chart, that's going back into the stream at the bottom,21 is that correct?22 That's correct.23 A. So I understand you to be saying that the water24 Q. that would normally flow across into the wetland is25 32 being deviated away down to the bottom, is that correct?1 That's correct.2 A. Now, if we look at the center again, we see, if3 Q. you look at the lower part of the chart in the center4 there is a speckled area in gray, that's a wetland,5 correct?6 In the center, yes. The stippled area.7 A. Yeah, the stippled area. That's what you look8 Q. for.9 Now, there are blue arrows, again, I think10 there's four of them going in the center right to that11 stippled area, do you see that?12 Yes.13 A. Okay.14 Q. That represents the current flow of water into15 the wetland, is that correct?16 That's correct.17 A. Okay.18 Q. Now, looking at where those arrows begin, what19 would be the difference in water flow after this is20 constructed based on the pink arrows?21 Well, the surface load is all collected by the22 A. stormwater system and redirected to different BMP's.23 There would be impervious gradient parking lots to this24 basin down here.25