11/02/1989 CONSERVATION COMMISSION Minutes

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Conservation Commission November 2, 1989 Page 3, 8:30 Bradg ate Builders, 81 Noisy Hole Road, Continued from October 19, 1989. Mr, Thorng advised the same two plans apply, with the same planting schedule. More trees and more grading is involved. The hayba l e barrier is pulled back to the toe of the proposed slope. What can be saved, will be. The trees are all pines. In calculating the 100 year flood, Mr, Thorng located a preliminary plan in the files showing all the topo which is very accurate. He came up with a run-off co-efficient by using the " rainfall , the area of -1 acres as a drainage area flowing into the area contributing to lots 80 and 81 , and came up with 87,042 cu. ft. of runoff. The bottom is shorn at elevation 42 and ars elevation of 44.3 ± for the 100 year flood with the dwellings above the 100 year flood zone. They will not be displacing any flood storage. Mrs. Simons stated this will have to be referred to the Planning Board engineer. Mr, Caffey advised there is a tiring issue; it could be within the 21 days but there is no guarantee. Mrs, summons asked if closing the hearing in one month 's time would be agreeable? Mr. Thorng agreed, preferably as soon as possible. He advised he and John Falacci reviewed the notes for the last hearing and the conversation about calculating and the use of the rational method, The Wetland Protection Act requires the TR55 method, but they agreed upon the rational method. If a problem, they will dead with it and more calculations will have to be done. Ir. Coffey stated he believes DER accepted both but asked if they could provide that, if required. Mr. Thorng agreed they could, CONTINUED, FOR REVIEW of THE CALCULATIONS BY THE TOWN ENGINEER,, To DECEMBER 14, 7:45 - Lot 80, 8:00 - Lot 81 . 8:45 John Tomassetti for an 18' X 20' great room and 20' X 241 garage addition. at 27 Runkhorn Point Road. Jahn Jacobi from if ppe cape Engineering presenting, Plans were reviewed, It is within the 100 ft, buffer, the salt marsh. The septic is to be upgraded with a new well to get the distance for the setbacks. Mrs. Simmons asked where the well and septic were addressed in the blot i,ce of Intent? Mr. Jacobi advised the septic is outside and the well was added later. An amendment to include the well was requested. lir. Jacobi agreed and advised the well is not ,yet in. DER is to be notified. It was noted haybales can be conditioned around the area. Mr. Sherman stated there are some very large trees that should be shown on the plan. i i Question was raised concerning the foundation and Mr. Jacobi stated it was full foundation. HEARING TO BE CLOSED AT THE NEXT HEARING DATE AFTER THE AMENDMENT Is RECEIVED AND TREES SHOWN ON THE PLAN THAT WILL DE REMOVED. i