10/8/1986 BOARD OF SELECTMEN Minutes

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S 1 X S t + I 6d. of Sel Minutes Meeting of October 8, 1986 Reference was made by Dr . ( afoot to the Priestley property. Dr . erf of went on to say that there is an easement area which Otis has for the storm discharge. There could be action taken aside from purchase in damming to reduce the volume of discharge charge which could have beneficial affecis by reducing sediment transport . el . Lawrence asked if that all directly went into the Priestley property? Dr . i erf oot making reference to the map replied that it is on the left-hand side. Dr. Kerfot said that they raised the question to E.C. Jordan if damming of that f l w would result in changes of direction of plumes i f the hdrol i c s of the area would be detrimental . He said that they would need a definition of that to continue with the feasibility study* Dr . i erfoot said that the discharge on the Falmouth side into the pond is clearly cauling a cultural eu troph i cation which in their opinion could be a violation of the Ma. glean later Act . He said that a portion of the offshore discharge occurs in the waters of ashpee. He will keep the Board informed. copy of the extention of the third quarterly report was presented to the Board by Dr. Kerfot . It includes docuen tat i on of the present source of the plume, a reap showing an extension of the discharge area offshore , etc . Dr. Kerfoot made reference to the Black Bock Region stating that they have seen a change in the species composition of fish. They► are getting away from trout and bass and are seeing catfish . H said that the conditions in that area will continue and enlarge and that the worse conditions have not been reached yet . It would probably take until the year 2000 until the actual groudwater would clear i f no action is taken. H a i between 1 984 and 1987 water which originally was at the beds wi l l have moved into the pond. Phosphorous moves very l owl ; l i e molasses. Dr. Kerf of said that it should definitely ba addressed and action taken to immobilize it. e l x Thomas asked if it affects the groundwater's Dr . Kerf of re- plied e- plied that it affects groundwater by creating a reduced condition subject to odors and unaesthetically pleasing water by having iron stains. It also has trace amounts of tri-chlor the l ne . e l . Thomas asked if the study of the two channels wi l l b finished b January or February with recommendations? Dr# Kerfoot replied yes and that they should have preliminary considerations ready by the end of this month , The document will be out in November ember for public review, The State likes to have two months for review and then the final report would be ready by January. � - - --