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site. But I’m not sure what the solution is because I’m not sure what is causing the current <br />problem. . <br />ALAMEDA:Thank you, Commissioner Watanabe, for stirring up the discussion. I <br />appreciate that. Commissioner McCall? <br />MCCALL:To continue the discussion on drainage, as I understand it with the current <br />situation with the single family home there or whatever, where there is no requirement right now <br />for disposing of runoff on site, it seems to me that if we allowed this we would actually be <br />improving the situation by they’d have to engineer it and control any runoff with drywells or <br />something, that the situation as far as ponding should be improved. <br />YUEN:Well, that’s hard to say; and the reason is that you have an existing ground <br />surface that’s -. What’s there now? Has it been cleared? It’s an open area, right? So what you <br />have is whether there was some grass planted or some grave. And I’m not sure what the <br />percolation characteristics are there now, but they’re better than asphalt and they’re better than a <br />roof, you know. So how much runoff you’re getting from, so the first question is, you know, <br />how much runoff are you getting from the current bare ground condition. If you did either this <br />project or you did a subdivision, there’d be an engineering study that would estimate increased <br />runoff; and then that has to be accommodated on site up to a certain level. Whether that would <br />end up being less flowing off site than the current condition, I can’t validate that, because I don’t <br />know how much is percolating through the existing bare ground that’s there. <br />ALAMEDA:Follow-up? <br />MCCALL:My point is that the current situation now with bare ground, it appears <br />there’s a ponding issue. And at least anything that is done there would, in my opinion, probably <br />improve the situation because they’ll have an engineer coming in and most probably drywells or <br />something would be implemented to help with the ponding. <br />ALAMEDA:Okay, Commissioner Watanabe. <br />WATANABE:Follow-up on that. This is Flood Zone X so apparently this is not a low- <br />lying area although it’s more than likely a very level area that is very close to sea level. So I’m <br />thinking that by your description of ponding we’re not so much talking about flood waters per se <br />as just major puddling of water on properties. <br />YUEN:I don’t know anything more than really the photographs that we’ve seen <br />and the description that we’ve had. It’s not mapped as a floodway under FEMA Mapping. <br />There are places that flood, you know, that are not mapped under FEMA Floodway. So we don’t <br />take it strictly, you know, that’s not end of story, they’re making it up, nothing happens. But I <br />use the term ponding because that seemed to be more what they’re showing rather than -. There <br />is a flood type zone that refers to ponding, I think that’s AO or something, but rather than -. The <br />vision of flooding is like, to me, you have water flowing across your property. It does seem like <br />the homes are in a low-lying area and water runs into the low point and creates this ponding <br />around the neighbors’ homes. <br />10EXHIBIT B <br /> <br />