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MINUTES January 25, 1996 2 BOARD OF HEALTH <br /> "Residents were quite adapt about providing additional treatment." "That is a change <br /> we intend to make however, it is not presented on drawm9s this evening."' "The only <br /> change on revised plans is the septic tanl ." <br /> �. Doherty questioned, "What type of denitrification system are you proposing?77 <br /> l ir. O'Brien responded, `'We are thinking o sia "Bi -cler " units." "We would <br /> lie the Board to consider granting a variance from regulations which require the <br /> installation ofa second leaching field."' 'A-Ve have the reserve area available but with the <br /> addit io nal treatment of the denitrification wits we feel that the BOD effluent, being 30 <br /> xnil igrams per liter and total suspended solids 30 nffigrams per liter, nitrate/nitrogen <br /> probably beim 10 grams per liter, would not excessively overload the Meld and would <br /> compensate for the cost of a Bio-clere system.7� <br /> Mr. Doherty commented, "That is not an unreasonable request." `gone of the <br /> reasons for the requirement of installing the reserve field now is that it is a lot cheaper than <br /> tearing up the asphalt later." "Given the additional treatment and the actual reason for the <br /> system failing or loading up in the first place is pretty limited." "One of the the the <br /> Board has looped at aggressively is LTA disinfection on the tail end of the system." 4` ve <br /> would lie you to look at that and to try and work that into your proposal if possible." <br /> Mr. O'Brien relayed, "One thing we have done for disinfection is that we propose <br /> to dose the field eight Mmes per day rather than the four times that are required under Title <br /> V." "This areatly increases the detention time m the field itself, we don't flood it to the <br /> same depth." "We are not opposed to LFV disinfection." <br /> Mr. Doherty stated, "One thing Title v is pushing is trenches." "It is out of <br /> experience in the past that trenches have a tendency to clog up vs. flog diffusers which we <br /> p <br /> consider to be more a commercial structure any vay.,' "You may want to consider this <br /> also." "'one of the town requirements is that you will be required to have a licensed septic <br /> hauler to .aintainux ease trap."' "That has to be established and we ill need copy <br /> y � <br /> of that agreement prior to issuing a food service permit." <br /> Ir. O'Brien requested the Board continue this matter. <br /> Board members agreed. <br /> i <br />