Arnie and Elaine Rose March 13, 2013 Ontario Energy Board P.O. Box 2319, 27th Floor, 2300 Yonge Street Toronto, On, M4P 1E4 Attention Board Secretary: Re: Letter of Comment GTA Project – Segment B We are commenting in response to a Notice of Application by Enbridge Gas Distribution Inc., to build segments of pipeline in the GTA, posted in the Toronto Star on March 5, 2013. We live just south of Highway 407 and west of Leslie St. less than one kilometre from the proposed pipeline Segment B. We are very concerned about the environmental impact of the proposed extension of the underground natural gas pipeline connecting the Keele/CNR station to the proposed Buttonville station. We have lived in our house for twenty seven years and have already felt the environmental impact of the Highway 407 construction. During the construction of the highway, many species of wildlife were displaced from their habitat. Our backyard abuts Little German Mills Creek and the surrounding ravine. This area became the temporary habitat for displaced species such as Ring-Necked Pheasants, Great Blue Herons, deer and foxes. We had never seen these species of wildlife in such numbers before the construction began. Within a few years of the completion of construction, these species no longer inhabit the ravine. The creek itself was also impacted by the construction of the 407. The creek flow has increased resulting in creek bank erosion and greater sedimentation disrupting aquatic wildlife. It has taken over ten years for environmentally-sensitive Little German Mills Creek and the surrounding ravine to begin to recover and regenerate from these disruptions. Digging an extensive pipeline will start this disruptive process all over again. ../2 Arnie and Elaine Rose, Finally, we want to express our concern about the risk and safety of a high pressure, high capacity pipeline so close to two major highways, hydro right-of-way, high school and the homes and businesses north and south of the proposed pipeline extension. We expect that there will be extensive environmental assessments for this proposed pipeline taking into account the impact on the environment during construction and into the future in this sensitive area. Sincerely, Elaine Rose Arnie Rose Copy: Enbridge Gas Distribution Inc. Attention: Mr. Norm Ryckman Aird & Berlis LLP, Attention: Mr. Scott Stoll Letter of Comment Ontario Energy Board 2/2 GTA Project – Segment B .