2020-08-10-CONCOM-min - Laserfiche WebLink

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Rich Kirby, LEC, presented before the Commission. He stated they delineated resource areas associated with 11 Norton Road for a tear down and rebuild of a single family dwelling. They delineated the resource areas which occur adjacent to Arlington's Great Meadow property which is contained within the Town of Lexington but is on property owned by the Town of Arlington. The lot measures 12,760 square feet. He then explained the plan to build. They are proposing a significant amount of riverfront restoration and stormwater management. The proposed infiltration system in the back will collect all roof and driveway runoff. There is no increase in runoff for the 1, 2, 10, and 100 year storm events. There are several trees that will be removed. Little site grading is proposed. They put together a planting plan but that has been revised. They are proposing to revegetate the 0 to 100 foot riverfront area and a portion of the 100 to 200 foot riverfront area on the site. Mr. Kirby then explained the revised planting plan. They have extended the Feno markers to occur along the property boundary and proposed three boulders at the end of Norton Road to allow for pedestrian access but prevent vehicular access. The Arlington Conservation Commission is generally in favor of this but they did have some suggestions. Concerns of the Commission: - Add another one or two boulders to the Norton Road access, three might allow for too large of a gap. Suggested a condition that the space between boulders is no more than 5 or 6 feet. - There is a marker for Arlington Great Meadows, is there an intention for this to be a path opening? If this is true could the trail from the road to the existing trail be wood chips or something that would suppress growth? - There are existing boulders, could those be extended along the end of the road? - It can be tough to get a lot of the plants that are being specified in the planting plan. If they have to go off the list it has to happen before the plants are planted. - On the Meadow Restoration area across the street, a lot of the shrubs died. How will these trees and shrubs be monitored? - How do they handle watering of the new plant material? Responses of the Applicant: - Adding the boulders would not be a problem. - They are putting in leaf compost to the edge of each of the shrubs and trees. Requiring more of that is fine. - Whatever they need to do to prevent vehicles from going through there is fine. - Typically the Order of Conditions requires a two year monitoring period for restoration. There will be annual monitoring and observations are made. If they see dead shrubs they will suggest they be replaced. After two years they provide a report to the Commission. - The new houses come with irrigation systems for the lawn. They recommend 360 degree water heads be installed. The Commission added that, if the applicant proposes a fence, they will have to come back for a plan change. On a motion by Ms. Dohan and seconded by Mr. Langseth, the Commission voted 7-0 by roll call vote to close the Hearing.