4/2/2009 CONSERVATION COMMISSION Minutes

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} y Mike Borselli of Falmouth Engineefing represented the application for a single family home located on Santuxt Pond and described the sloping lot that extends down to the water. In order to gain.access to the water a series of stairways and walkways were built down the bark many years ago, ending at an old dock system that includes a float. The entire system is in a state of disrepair, and the stairs land directly on a float. The applicant wishes to make changes to the system and is in the application process for a Chapter 91 license,but is required to seek approval from the Conservation Commission to allow the clack to be in existence. The applicant wishes to rebuild the entire structure in the same footprint, including the stairway and replace the clock with a fixed platform at the base of the stairs. A ramp will lead to the float that will be supported by galvanized pipes driven by sledge hammer. The dock will be seasonal and will be removed during the off season. The hearing was initially continued because they did not have a DEP number, which they now possess along with a letter from the Division of 1 Marine Fisheries. Mr. Cross suggested that a minimum schedule of 40 be used for the galvanized pipe and Mr. Borselli agreed that it could he stated as a condition for approval. Mr. Cross also questioned whether the pipes would be 20' and asked that the pipes be driven as far as possible. Agent McManus further confirmed that the' Commission prefers that the piles be driven rather than getting. Agent McManus confirmed that the property is not in Natural Heritage jurisdiction, there are no comments from IEP and that both the Harbormaster and Shellfish harden signed off on the plans. Agent McManus discussed the steepness of the bank with Mr. Borselli and concerns regarding the methodology ofthe stairway construction. Agent McManus would like further details regarding the methodology from the contractor involved. An on site visit with the Agent will be conducted before the construction begins. Assistant Agent Leidhold questioned the ' width of the platform, to which Mr. Borselli confirmed the current 5'x 1 " float would be replaced with a 55x18"platform.. Assistant Agent L id.hold stated the Bylaw policy of a maximum ' width. Agent McManus stated that it is not located on the inland bank and that there were no comments from the Shellfish warden regarding Shading concerns. Mr. Borselli responded that if there were concerns among the Commissioners that the plan could be resubmitted reflecting the ' maximum. Further discussion continued arrrong the Commission regarding safety concerns of placing the stairs on a ' platform. It +vas agreed that due to afet r concerns and the steepness of the bark, the ' width would be acceptable. Motion made, seconded and unanimously carried to Close and Issue with the condition that the pops used be hot-dipped galvanized steel and that the piles be driven. 7:03 John and Catharine Brennan, RDA—38 Fiddler Crab Lane (Remove asphalt driveway, replacing with native stone, well installation, irrigation system installation and remove and replace plantings) Dan Philos-Jensen addressed the Commission as a representative for the applicant. Mr. Philos-Jensen distributed revised plans for clarity to the 6mmission. The application was described in parts. Part 1 represents the existing asphalt driveway which will be replaced with 14" crushed native field stone with a stone border. Part 2 represents a planting design, which was Plan 1 under the original RDA and includes detailed list of native species of plantings with no invasive plants. fart 3 represents the well and irrigation system. The well installation is color coded in yellow on the hand out and will be located closer to the dn*ve vay by approximately half of the current distance. The proposed weekly water schedule and maximum imur monthly amounts are also included. The applicant anticipates that once the lawn has recuperated and in spring and fall, the lawn will not require as much irrigation as the summer. It was clarified that there are 6 zones. The total volume of water was questioned by the Commission. The applicant plans to install a 12 gallon per minute maximum well. Mr. Philos--Jensen figured that each head in each zone would produce 14 gallon per minute. Mr. Cross questioned if the total volume of water would be 2000 gallons, 2 times per week. Mr. Philos-Jensen took another look at the numbers to determine the total volume. Agent McManus cManus stated that the plantings located at the front of the hone were acceptable and are located outside the resource area. Regarding the irrigation plan, Agent McManus had concerns regarding Zone 5 with pop up rotary heads. Agent McManus questioned the distance of the 3