02/08/1990 CONSERVATION COMMISSION Minutes

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Conservation commission February 8, 1990 Page 3. [fir. Halpern pointed out it would be to their advantage to go back to Burd of Appeals for a minor nodification. Mr. Somerville stated,depend i ng upon where the break i , possibly the size of the floats could be cut, Mr. Thorng agreed to take further soundings,, 40 ft. diameter around the float to locate where the break is. He pointed out the error percentage is 13.2% instead of 1 . Ir. Sherman stated that is ars informal u idel i ne. He feels it should be treated as a brand new filing. Mr. Thorng had no problem with that. CONTINUED TO APRIL 5, 1990 - 8:00 p.m. 1r. Sherman suggested a letter of reprimand be sent to Crosby; total length can be measured on a plan. He was instructed to send the letter. 8:15 Bradgate Builders, Lot 81 Noisy Hole Road. CONTINUED To FEBRUARY 22, 1990 - 8:00 p.m. 8:16 Yahan Ya laian'. for the proposed construction of a new subsurface sewage disposal system and 2 - 2.5' -wood retaining wall at Lot 98 Bright Coves Way. Jeff Pederson, contractor, and George- Thorng of Arrow Engineering present i ng. Mrs. Simmons stated D.E.P. num' hers are not posted on the project. Mr. Tho rng advised a Notice of Intent was filed fora garage which has been constructed. The Board of Health inspected the property and determined the existing septic has failed. He designed trenches 231 long, 2' deep and 3' wide. Soil is going to be stripped in the shaded area and replaced with soil that has a percolation rate of two minutes per inch or less. They will strip dowry 5 ft. , take it off the premises and fill with clean sand and gravel . The topo shows the bank. When cut back,, they propose a 2-2-1/2 ft. high pressure treated wood retaining wall from where the tank is to tie into existing r toin- in wall . Mrs. Simmons advised there is erosion taking place on the street side and suggested a french drain. Mr, Pederson stated a planter is proposed net to the garage. 1r. Burns asked about an Oak and Tupelo tree and was told they cannot be saved. Sanitary codes require a 10 ft. perimeter. 1r. Pederson stated they plan to relands ape the whole area and put in shrubs, Mrs. Simmons asked for a copy of the landscape plan. Mr, Coffey asked if flow diffusers would work and was told there is not enough area, they would require 4 ft, of stone around and 440 would be needed for 4 bedrooms. Board of Health approval was received. They will pump and fill the existing cesspool with clean sand.