7/27/1989 BOARD OF HEALTH Minutes

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MINUTES u i 27, 1989 BOARD of HEALTH WASTE WATER TREATMENT FSA I L II'Y 1- We'ston & sa pson 7 Mr. Scipidne ireformed the Board bench results have slightly altered initial plans and expiained that a ,.two phase S.B.R. was found to be better -then the sing 1 e., phase . . . : Mr., Scipiorie commented the two'-phase S.D. . gives a 11ttle more process control and fiexibility so that rec c i l ng c a n take place., 1 r. sc i p.i ono explained additional costs should not be s i g n i f i-� cant, how ver -1an up .td 'date cost estimate of te facility has not-been final- ized. ina1- i ed. he stated ,they ,propose p.common '-vara l I construction u.s.i ng ,concrete oa�ff i e walls and adding some more a i r� rings on. the second stage to knock it down. Cir. Scipione stated lie has put together a package containing the scope of work Weston- &Weston-& Sampson proposes, a draft agreement and comments from D.E.Q.E* , r. Scipione provided a copy of this packet to each Board member) . Mr. 15cipione explained that he met w-i th -the State to review -the proposed pilot study, to see if they had any comments prior to the start so that if grants become a aiiable the town is eligibie. Ir. Scipione stated there is poten- tial oten- tial for a 7 % planning grant and informed the Board he did at-tend a public hearing on this, making comments on Mashpee which were fol Towed up with a letter. Mr. Scipione reiterated h is ea r ti er comments stating he does expect a 7planning' adVdnce for -the work. Mr. Scipione explained there are number of comments the State would want to see incorporated into the study, most of which are clarifications, such as enact sizes instead of a general.I ed number of volumes. fir. Scipione commented the State is concerned with sampling requirements and have now increased them to include certification by a Certified State Lab. and ex-. piained when he met with the state he did relay that certification by a State lab was not necessary. -there response wa-s that they were willing to entertain a proposal from us as to what can be done in -the field and what can be done in the lab. Mr, Scipione informed the Board he has included in t'he packet some flow diagrams and plans as to how they intend to lay out the system, Mr. Sciplone briefly explained operations stating the system will be placed right beside the existing septae lagoon area, septage will be borrowed from the lagoon's and returned. He commented the State has agreed to this plan and will issuea "Research Effluent D i sposa i permit. Mr. Scipione continued explaining operations stating they will be borrowing septage,, pumpers will dump septage into -the in.iet structure which will travel thru an inlet pipe, bar screen and into the grinder. He stated the purpose for the holding basin, which ill - not be necessary in the full scale facility because the S.B.R. will be utilized as the equalization tank, but in order to get a good representative s ample . e will take every load of septage that comes in, remove a batch from it, going 'to our S.B.R. , thea dump the remainder and empty that Ioad back -into the lagoons, an equa_i amount will be removed from each truck that comes in and sent right into the S.B.R. . Mr.. Scipione stated they have purchased a large dumpster than sea i ed for the S.B.R. , one of the manufacturer' s representatives has put together a float- ing loat- irig sequench i ng batch reactor system so that it can be put i nthe first stage and commented the manufacturer will provide a control panel which will re- quire ew- quire wiring. lir. Scipione explained the reactor system will aerate, settle and decant all in one tank then will go to the second one, tree second stage S.B.R. will be brought in on the back of a truck, which will be dropped in place. Mr. Scipione stated from there, (the holding basins) , which from num- ber one are pumped thru a polishing filter, which will be made out of plywood and put in an underdrain system, will come into a effluent holding basin at which -time samples will b taken then pumped into the inlet structure, every- thing coming in will be recycled back.