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Grande Prairie Mainline Loop Nosehill Creek Section Environmental And Grande Prairie Mainline Loop Nosehill Creek Section Environmental and Socio-Economic Assessment February 2011 Prepared for: NOVA Gas Transmission Ltd. A wholly owned subsidiary of TransCanada PipeLines Limited Calgary, Alberta Prepared by: Stantec Consulting Ltd. Calgary, Alberta In Association with: IPS Consulting Ltd. Calgary, Alberta Project Number: 123510503 Grande Prairie Mainline Loop Nosehill Creek Section Executive Summary February 2011 Executive Summary Introduction and Project Description NOVA Gas Transmission Ltd. (NGTL), a wholly owned subsidiary of TransCanada PipeLines Limited (TransCanada) is applying to the National Energy Board (NEB) under s. 58 of the National Energy Board Act (NEB Act) for authorization to construct and operate the proposed Grande Prairie Mainline Loops (Karr North Section and Nosehill Creek Section) (the Project). Due to the distance separating the two sections of the Project, NGTL has undertaken two separate Environmental and Socio-Economic Assessments (ESA). This document deals with the Nosehill Creek Section. The proposed Nosehill Creek Section is composed of a proposed 3.5 km long, 42 inch (1067 mm) diameter pipeline that will loop the existing Grande Prairie Mainline from NW-1-57-22-W5M to SE-31-56-21-W5M. The maximum operating pressure of the pipeline will be 8275 kPa (1200 psi). Applications will be submitted to the NEB in the first quarter 2011. Pending regulatory approvals, construction of the pipeline is expected to commence in August 2011. Construction is expected to be complete with the pipeline in-service by April 1, 2012. Regulatory Context The Project is located within Alberta and forms part of the Alberta system, which is a federal work and undertaking subject to the regulatory authority of the NEB and pursuant to the NEB Act and associated regulations, including the Onshore Pipeline Regulations (OPR) (1999). The Project requires approval pursuant to s.58 of the National Energy Board Act (“NEB Act”). Two watercourses crossings will be required for the Nosehill Creek Section. The Athabasca River and unnamed tributary to the Athabasca River will be crossed using an HDD. The HDD crossing will be done in accordance with DFO’s Alberta Operational Statements. The contingency crossing is an open cut crossing of the Athabasca River and an isolation crossing of the unnamed tributary. The contingency crossing method will require authorizations from Fisheries and Oceans Canada (DFO) pursuant to s.35(2) of the Fisheries Act and may require approval from Transport Canada (TC) pursuant to s.5(1) of the Navigable Waters Protection Act and section 108 of the NEB Act. Environmental Setting Existing environmental information was reviewed to describe the environmental setting of the Nosehill Creek Section and help identify potential environmental effects. Information sources included municipal and provincial maps, topographical maps, aerial photographs, Codes of Practice, guides, databases, websites, existing scientific papers and published literature. To supplement existing information collected for the Nosehill Creek Section, studies were completed for: • vegetation and wetlands; i Grande Prairie Mainline Loop Nosehill Creek Section Executive Summary February 2011 • fish and fish habitat; • wildlife and wildlife habitat; • historical resources; • traditional knowledge; • traditional land use; and • socio-economics. Environmental field studies focused on locations where existing information did not provide enough detail to identify potential concerns, develop mitigation or assess potential effects or, in some instances, to supplement existing time-sensitive information that was not current. The scope of these studies focused on local assessment areas and the project development area associated with the Nosehill Creek Section. For the purposes of the Environmental and Socio-economic Assessment (ESA), the scope of assessment took into account the requirements of section 16(1) of CEAA and the NEB Filing Manual. The scope of the factors defines the biophysical and socio-economic elements to be assessed (see NEB Filing Manual, Table A-3) and the spatial and temporal boundaries (i.e., distance and time) associated with the biophysical and socio-economic elements. Three spatial boundaries were used to describe the environmental and socio-economic conditions in the project area (in relation to the proposed route), including: • the Project Development Area (PDA), which is the permanent RoW plus any additional footprint associated with the construction of the pipeline (e.g., temporary work space The Nosehill Creek Section requires a minimum construction RoW of 32 meters for safe and efficient construction. In addition to the 32 meters, additional land will be required for soil handling. The soil handling requirements are influenced by various factors, including ground conditions, land use, burial depth, crossings (bell holes), bends, and grade. This results in a construction RoW of greater than 32 meters at specific locations. In areas where NGTL is able to parallel existing disturbances the new land required to make up the construction RoW will vary from approximately 16 to 24 meter. Field assessments were completed on the permanent RoW and a buffer of 25-30 m on either side depending on the proposed RoW in relation to other parallel linear features. • The Local Assessment Area (LAA), which includes the PDA is the area over which the effects of the Nosehill Creek Section might be measurable. In most cases, the boundaries selected for the LAA are discipline-specific (e.g., the fisheries component assesses watercourse crossings). • The Regional Assessment Area (RAA), which includes the PDA and LAA will vary with each discipline and can include boundaries based on such things as natural subregions, or the home ranges of wildlife species. ii Grande Prairie Mainline Loop Nosehill Creek Section Executive Summary February 2011 Environmental and Socio-Economic Assessment Issue scoping completed for the Nosehill Creek Section focuses the ESA on factors that are relevant to the project and potential effects. Issues related to the Nosehill Creek Section have been identified from a variety of sources, including: • regulatory requirements; • discussions with technical experts from various provincial and federal government agencies; • input from the stakeholder consultation program; • existing regional information and documentation regarding environmental components found in the project area (e.g., species at risk); • documentation relating to other projects and activities in the area of the Nosehill Creek Section; • field studies in the area of the Nosehill Creek Section; • professional judgment of the assessment practitioners, based on experience with similar projects in the area and elsewhere; and • operational experience of NGTL personnel. Once issues were identified, a pathway of effects analysis was completed to help determine which biophysical and socio-economic components should be assessed. Potential environmental and socio- economic components considered for the Nosehill Creek Section are: • physical environment; • soil and soil productivity; • vegetation and wetlands; • fish and fish habitat; • wildlife and wildlife habitat; • atmospheric environment; • acoustic environment; • land use; • historical resources (includes palaeontology); • socio-economics; • traditional ecological knowledge; and • traditional land use. iii Grande Prairie Mainline Loop Nosehill Creek Section Executive Summary February 2011 Mitigation Measures Several mitigation strategies have been proposed to avoid or minimize the effects of the Nosehill Creek Section, including: • scheduling of activities to avoid sensitive periods • developing mitigation measures to address site-specific and general issues • Environmental inspection during construction to ensure recommended mitigation is implemented and effective Mitigation specific to each biophysical and socio-economic resource are discussed in detail in the respective sections in the ESA. The Environmental Protection Plan (EPP) and accompanying Environmental Alignment Sheets submitted with the ESA identify general and specific measures to be implemented by the Company, its contractors and subcontractors during all phases of the construction program, including reclamation, to avoid and minimize environmental effects. Cumulative Effects Assessment For assessment of cumulative effects, a project inclusion list was developed to facilitate an assessment of effects of the Nosehill Creek Section in concert with other known or anticipated projects or activities. Details of cumulative effects are discussed further in the ESA. Cumulative effects of the Nosehill Creek Section were determined to be not significant for all components. Cumulative effects assessment was not completed for any VEC’s as there are no known or reasonably foreseeable projects that overlap the Nosehill Creek Section spatially or temporarily. Findings and Significance The Nosehill Creek Section will not have a significant adverse affect on any biophysical or socio- economic resource provided the mitigation measures identified in the ESA are implemented during construction and operation. Follow-up and Monitoring The Project will follow the Company’s post-construction monitoring program, which ensures compliance with specific reclamation performance criteria as might be required by the NEB s.58 Order. Monitoring the reclamation of the RoW will be carried out for at least two growing seasons following the completion of
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