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•_f <br /> The State might make us use the much higher numbers (Title V). They are developing these <br /> figures for the water Resources element of the Local Comprehensive Flan. <br /> Brad said those numbers will tell the volumes for each area and we will then know what the <br /> maximum volume, size of system that has to go in that area. <br /> South Mashpee Area: Torn thought it would make sense to have cluster de-nitrifying systems <br /> there but if we find out they won't work because of the seasonality, we may have to reconsider. <br /> The Santuit Fond area has the most year round.residents, but it is also the poorest area of town <br /> and therefor least able to afford a sewage system. <br /> The members reviewed the information Torn received from the conference on de-nitrifying <br /> systems. <br /> -Re-circulating sand filter. requires a second septic tank and a sand filter. Sand filters take up a <br /> lot of space so are not good for small lots. It is not a patented system so prices vary. <br /> -Renco trickling Ater: $ , oo in addition to cost of Title v system. <br /> -Biolclere: if it is heavily managed, can get nitrogen don to ten parts per million, otherwise it <br /> is about 20 parts. Hundreds have been installed in Europe. It uses foam blocks as the media <br /> which the bacteria grows on. $5,,000-61,000 in additional cost.. Can be used for multiple homes. <br /> Brad said who would be responsible for maintenance, if used for multiple homes.? <br /> Tom said the town would own the system. <br /> Brad asked what the maintenance costs are? <br /> Tory does not have any figures for those costs. <br /> - waterlue bio filter: no cost figures. was developed to remove B -biological oxygen <br /> demand. <br /> .RUCK system: is a very complicated system. Needs re-piping on the house. $7,000-8,000 in _ <br /> additional costs. There is one in New Seabu.ry. <br /> For any technology that has a pump, there must be a 2 year mw'ntenance contract for the pumps, <br /> by a licenced treatment plant operator at a cost of$200-3 per year. <br /> -FAST: was originally used on ships. Uses ultraviolet light for disinfection. Removes nitrogen <br /> by pumping air into the septic tank. Needs a 21,000gallon septic tank(most are 1,500 gallons) <br /> and an additional S5,500. Because it has a pwnp it will require the maintenance program. <br /> -Arnphidro e: various size units. Very expensive for individual single family home units. More <br /> cost effective for cluster systems. There is one installed in waluoit. Modifications are needed <br /> to the septic tank. Toni thought this system and bioclere would be best for cluster systems in <br /> town. <br /> -Chromaglass: $7,550-7,8000 additional cost. <br /> -Feat system: the leaching area is peat moss, packed very tightly. Excellent BOD removal. Is <br /> used a lot in Maine. They are not sure how this works on nitrogen because there is a lot of <br /> acidity in the peat. The presenters at the conference were not very enthusiastic about this <br /> system. <br /> - -nitrification barrier: a silt loam and saw dust layer, which is the carbon source for the <br /> bacteria. However that gets used up in a few gears. It is difficult to get the correct silt loam <br /> mixture. Also not enthusiastic about this systems. <br />