2/5/1998 CONSERVATION COMMISSION Minutes

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i February 1998 Page 5. Your cant necessarily bid a house in a coastal bank but if you do you need to show that there arenI going to be any impacts here. Here there is -138 foot coastal bank that goes across lots 126-47 and 126-48. Eight percent of that coastal hank is impacted by a deck about 80 s.f. All f the area in here, Jehu Fond, the ACE C which is part of the Wa quoit Bay ACE C, has a 10 foot boundary which is the flood event, as described in the AC C, it comes up to Great Oak Road and then becomes 11 ft. where it impacts their lot. What they are saying to the Commission is, all of this area in here is 10 feet and what is the difference that makes this 11 and this 1 . He cannot get that answer and if you read the regs, the ACC line is on 9 feet. This lot, because they are holding the 11 foot ACE line, shows a lithe coastal bank in which they are proposing to put a deck for 75 feet. They need to show they are not going to have any impacts. This coastal bank is governed by a set of performance standards that say that it should perform as a vertical buffer to prevent flood and storm impacts, it could be a sediment producer, and it should be stabilised. Based on the regulations they are held to the sane performance standards for the small coastal bank as they would be held for the Maushop Village coastal bank. his is a non-sediment producer, it can't act as a storm prevention vertical base because (pointing) this is not a coastal bank, this is not a coastal bank and this isn't coastal bank. He asked how they meet the performance standard of no significant impact. They are proposing to take 75 feet of coastal bank, work with the comn ,ssion to provide wildlife benefits, plantings to provide a greater mix of wildlife diversity that is not already there to show that they can construct this 75 st of deck on this small pocket coastal bank, held to very stringent performance standards, and t the same time show that there isn't going to be significant impact. The house itself is impacted by Great Oak Road that has twice been move in its layout so that approximately 807 s.f of the lot is now paved. Further, they have gone in front of ZBA to get relief from the 30 foot front line setback to 25 to put in a Fast system. This is a very small house, only covering 10-14% of the lot. They have pined as far as possible out of the wetland resource area. They are 42 feet to the edge of the BVW, 40 here, and the only thing they ,are asking in of the Commission is to approve the small area in the coastal bank and they will mitigate for that less by bringing m a said amount of plant materials to diversify the wetland vegetation. Mr. Sherman asked what lis the closest distance between the deet and the freshwater wetland edge, the BVW edge? Mr. Hayes stated about 41 feet. Mr. flayes stated the issue that makes this so unique is the ACEC hn , 1 feet that goes to 9 and thea up to 10. They do not understand why the difference and why they are being held to this l l ft. standard.