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MR. HARRINGTON: I'm not sure why, but I think I would have tried to have broken the <br /> flow up a little better to the other two systems. I think they have the room to increase <br /> the size of systems 1 and 2 to break up the flow a little bit so they don't have to run a <br /> line all the way back to that 6,000 gallon/day system. But,that's what they're showing. <br /> They're digging in sand, but you're going to have trench box down that entire line. Can <br /> they do it? Yes, but it just makes more expensive,you're going to have a 30 foot wide <br /> hole to get 15 feet deep. <br /> MR. BAUMGAERTEL: And they're in close proximity to water lines. That runs parallel to <br /> a segment of that and crosses in some other places. There are a lot of taps off their <br /> main waterline. I also noticed that there's not reference to control panels or locations <br /> for them. I agree, we do need some kind of detail on the drip system. You can't just <br /> shade it in and say drip system here. It doesn't work that way. There's no detail on the <br /> pumping system. <br /> MR. HARRINGTON: When you're providing flow to even a smaller diameter laterals, if <br /> you put those laterals down the hill, your distant pressure is going to be so much higher <br /> at the bottom end because putting effluent in and it's running down to the lower end. <br /> You have to put the laterals parallel with the contours and parallel with the hill. If not, <br /> you're going to get those differences in pressure and it will be done at different <br /> pressures. <br /> MR. BAUMGAERTEL: I know that drip has some capability for adjusting or compensating <br /> for variation in pressure. <br /> MR. HARRINGTON: They might because it's such a small diameter. But, I think it would <br /> make more sense if they run it parallel with the hill. <br /> MR. BAUMGAERTEL: I think they typically would, if I recall from what I've seen of those <br /> installations, I'm going to guess that would run this almost vertically. <br /> MR. HARRINGTON: But with no detail, you don't know. <br /> MR. BAUMGAERTEL: You don't know for sure,there's no detail there. <br /> MR. HARRINGTON: Those may be questions for Dan Oppenheimer that I have. For <br /> individual technology questions. <br /> MR. BAUMGAERTEL: It would be worth it to connect with Rob. He would look at it and <br /> tell you exactly what everything is. <br /> MR. HARRINGTON: When you're looking at pressure distribution systems and you're <br /> talking about the elevation to the pipe you can only be off a couple of percents. You're <br /> talking about a 10th of a foot over a 100 foot long pipe. You got to keep your elevations <br /> consistent or your get difference in pressure. That detail is important. <br /> MR. BAUMGAERTEL: We're moving in the right direction so this is good. <br /> MR. HARRINGTON: This is not 100%done,they sent us something to look at. It's still <br /> more of an in-concept, because of the missing details. It gave us something to look at <br /> and comment on and then I would expect, hopefully, by the next meeting on the 191h <br /> we'll have complete revised plans, because we need to have an answer by the 29th <br /> MR. BAUMGAERTEL: The only thing I'll add to this the good thing about the drip <br /> dispersal system, particularly given the Mashpee river is right there we can get some <br /> additional nitrogen removal because we're keeping the wastewater up in those upper <br /> soil horizons and we're getting phosphorus removal out of that too. I've seen some <br /> pretty good results from drip dispersal systems. <br />