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broken down, it's pieces of plant material and stuff so those anaerobic bacteria can utilize that <br /> carbon. Particularly looking at it in the context of winter because winter performance always <br /> suffers so try and give it a more immediately available carbon source. But the advantage of doing <br /> the combination, I'm glad you came up with this idea. The problem that a lot of technologies <br /> that do that recirculation they suffer because a lot of times there is not enough carbon to do full <br /> denitrification in the septic tank there is not enough fresh poop coming in for them to use. This <br /> could be a good one too, which would be the utilization of the carbon in the wood chips in the <br /> field and then recirculation back to the septic tank to get some additional treatment there. You <br /> might actually produce a little bit more of an anoxic zone in that section with the liner under it. <br /> Mr. Harrington: At the Zachary's property, here's the road, this is the big building, the old <br /> Zachary's building, there are going to be 3 leach fields. One down at the southern entrance, <br /> parking lot. This is the upper parking lot and these are the cottages on the upper part and there <br /> is another round of cottages with another leaching here. There's a series of septic tanks and <br /> pump chambers that are gravity flowing from here,and picking up here and down to here,there's <br /> a manhole going all the way over to here. And then a tank and this a proposed 3,000 gallon pump <br /> chamber so this is going to pump all the way back up to this leaching area. And so this is flowing <br /> down to here so there is three basically cluster systems. These are the areas that are going to be <br /> set up in these leach field style kind of like this except there because it is in the driveway, the <br /> parking are,they're going to use concrete chambers. Rows of chambers and then run the laterals <br /> through the concrete chambers which I think is a better idea because it will spray up hitting the <br /> top of the chamber and it will aerate it like a sprinkler inside the chamber. That aeration process <br /> is a good step in the denitrification process. <br /> CHAIR BAUMGAERTEL: There's apart of me that is the scientist that says it's not going to perform <br /> that well. On the other hand when looking at it from the bigger picture which is the DEP has <br /> already approved this and they're telling us they think we don't have standing anyway and if this <br /> is going to happen anyway and we can at least get that to happen which I think is a step above <br /> not doing anything and it is a step in the right direction rather than them just saying sorry, <br /> Mashpee Board of Health, you're SOL. <br /> Ms. Willander: What happens if they do it and they put the system in and it doesn't perform the <br /> way that the testing. <br /> Mr. Harrington: It's not going to perform worse than a Title 5 system. Remedial you're fixing a <br /> bad problem, and you need either to reduce the size of the leaching or you need to drop the <br /> distance to ground water or you have to decrease set-back to some other resource area. That's <br /> why they allow the remedial. That is essentially what you're doing, trying to make the best of a <br /> bad situation with the remedial system. <br /> CHAIR BAUMGAERTEL : I wonder what the conditions are for nitrogen removal. A secondary <br /> treatment would be one sample from <br /> Mr. Harrington: The current guidance is 2 field tests per year. 2 visits and 2 field tests per year. <br /> General approval its 1 annual field test. All they're doing is they're going to visit it 2 times per <br /> year. If anything is awry then they're required to sample. If it doesn't meet the turbidity <br /> standard,the PH and the dissolved oxygen, it's a clarity test. <br />