SOUTHERN NATURAL GAS COMPANY, L.L.C. PRELIMINARY DRAFT RESOURCE REPORTS 1 AND 10 NORTH MAIN LINE RELOCATION PROJECT

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1 SOUTHERN NATURAL GAS COMPANY, L.L.C. PRELIMINARY DRAFT RESOURCE REPORTS 1 AND 10 NORTH MAIN LINE RELOCATION PROJECT FERC DOCKET NO. PF14-12 VOLUME I PUBLIC Prepared for: Southern Natural Gas Company, L.L.C. 569 Brookwood Village, Suite 749 Birmingham, Alabama Prepared by: Cardno ENTRIX 6649 Peachtree Industrial Blvd. Suite I Peachtree Corners, GA July 2014

2 SOUTHERN NATURAL GAS COMPANY, L.L.C. RESOURCE REPORT NO. 1 GENERAL PROJECT DESCRIPTION NORTH MAIN LINES RELOCATION PROJECT FERC DOCKET NO. PF14-12 PUBLIC Prepared for: Southern Natural Gas Company, L.L.C. 569 Brookwood Village, Suite 749 Birmingham, Alabama Prepared by: Cardno ENTRIX 6649 Peachtree Industrial Blvd. Suite I Peachtree Corners, GA July 2014

3 NORTH MAIN LINES RELOCATION PROJECT FERC DOCKET NO. PF14-12 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT INFORMATION RESOURCE REPORT NO. 1 GENERAL PROJECT DESCRIPTION SUMMARY OF COMMISSION FILING INFORMATION 1. Provide a detailed description and location map of the Project facilities. ( (c)(1)) Include all pipeline and aboveground facilities. Include support areas for construction or operation. Identify facilities to be abandoned. 2. Describe any non-jurisdictional facilities that would be built in association with the Project. ( (c) (2)) Include auxiliary facilities. ( 2.55(a)) Describe the relationship to the jurisdictional facilities. Include ownership, land requirements, gas consumption, megawatt size, construction status, and an update of the latest status of federal, state, and local permits/approvals. Include the length and diameter of any interconnecting pipeline. Apply the four-factor test to each facility. ( (c)(2)(ii)) 3. Provide current original U.S. Geological Survey (USGS) 7.5-minute series topographic maps with mileposts showing the Project facilities. ( (c)(3)) Maps of equivalent detail are acceptable if legible (check with staff) Show locations of all linear Project elements and label them. Show locations of all significant aboveground facilities and label them. 4. Provide aerial images or photographs or alignment sheets based on these sources with mileposts showing the Project facilities. ( (c)(3)) No more than 1 year old. Scale no smaller than 1:6, Provide plot/site plans of compressor stations showing the location of the nearest noise-sensitive areas (NSA) within 1 mile. ( (c)(3,4)) Scale no smaller than 1:3,600 Show reference to topographic maps and aerial alignments provided above. 6. Describe construction and restoration methods. ( (c) (6)) Include this information by milepost Make sure this is provided for offshore construction as well. For the offshore this information is needed on a mile-by-mile basis and will require completion of geophysical and other surveys before filing. 7. Identify the permits required for construction across surface waters. ( (c)(9)) Include the status of all permits. For construction in the federal offshore area, be sure to include consultation with the Bureau of Ocean Energy Management (BOEM) File with the BOEM for rights-of-way grants at the same time or before you file with the FERC. 8. Provide the names and addresses of all affected landowners and certify that all affected landowners will be notified as required in 157.6(d). ( (a)(4) and (c)(10)) Affected landowners are defined in 157.6(d) Provide an electronic copy directly to the environmental staff. FOUND IN Section 1.1 and Figure Section 1.10 Appendix 1.A (Project Mapping) Appendix 1.A (Project Mapping) Not applicable Section 1.4 Section 1.7, Table Section 1.9, Appendix 1.E (Volume II [Privileged and Confidential]) July 2014 i

4 INFORMATION RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT RESOURCE REPORT NO. 1 GENERAL PROJECT DESCRIPTION SUMMARY OF COMMISSION FILING INFORMATION Additional Information Often Missing and Resulting in Data Requests Describe all authorizations required to complete the proposed action and the status of applications for such authorizations. Provide plot/site plans of all other aboveground facilities that are not completely within the right-of-way. Provide detailed typical construction right-of-way cross-section diagrams showing information such as widths and relative locations of existing rights-ofway, new permanent right-of-way, and temporary construction right-of-way. Summarize the total acreage of land affected by construction and operation of the Project. If Resource Report 5, Socioeconomics, is not provided, provide the start and end dates of construction, the number of pipeline spreads that would be used, and the workforce per spread. Send two additional copies of topographic maps and aerial images/photographs directly to the environmental staff of the Office of Energy Projects (OEP). FOUND IN Section 1.7, Table Not applicable Appendix 1.A (Project Mapping) Tables and Section 1.3 To be submitted under separate cover July 2014 ii

5 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT Table of Contents 1.0 GENERAL PROJECT DESCRIPTION Proposed Facilities Location and Description of Facilities Purpose and Need Mapping and Aerial Photography Land Requirements Pipeline Facilities Aboveground Facilities Construction Schedule and Workforce Construction Procedures Environmental Compliance, Training, Inspectors, and Project Responsibility General Pipeline Construction Procedures Special Pipeline Construction Procedures Aboveground Facility Construction Operations and Maintenance Pipeline Facilities Aboveground Facilities Future Plans and Abandonment Permits and Approvals Stakeholder Outreach Stakeholder Identification Outreach Activities Non-Jurisdictional Facilities References July 2014 iii

6 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT Tables Table Proposed Pipeline Facilities Table Proposed Aboveground Facilities Table Summary of Land Requirements for the North Main Line Relocation Project Table Land Requirements for the North Main Line Relocation Project Pipeline Facilities Table Proposed Access Roads for the North Main Line Relocation Project Table Anticipated Construction Schedule and Workforce for the North Main Line Relocation Project Table Major Permits, Licenses, Authorizations, and Clearances Anticipated for the North Main Line Project Figures Figure General Project Location Appendices Appendix 1.A Project Mapping Volume I, Public Appendix 1.B Construction Typicals Volume I, Public Appendix 1.C Agency Correspondence Volume I, Public Appendix 1.D Stakeholder List Volume I, Public Appendix 1.E Landowner Volume II, Privileged and Confidential July 2014 iv

7 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, LLC NORTH MAIN LINES RELOCATION PROJECT Acronyms ADCNR Alabama Department of Conservation and Natural Resources ADEM Alabama Department of Environmental Management AHC Alabama Historical Commission API American Petroleum Institute ATWS Additional temporary workspace BMP Best management practices Certificate Certificate of Public Convenience and Necessity CFR Code of Federal Regulations CWA Clean Water Act USDOT U.S. Department of Transportation EI Environmental inspector ER Environmental Report ESA Endangered Species Act ESD Emergency shutdown FERC Federal Energy Regulatory Comission HDD Horizontal Directional Drill MAOP Maximum Allowable Operating Pressure MBTA Migratory Bird Treaty Act MP Milepost N/A Not applicable NEPA National Environmental Policy Act NGA Natural Gas Act NGO Non-government organization NHPA National Historic Preservation Act NPDES National Pollutant Discharge Elimination System NWI National Wetlands Inventory OSHA Occupational Safety and Health Administration PCB Polychlorinated biphenyls PI Points of inflection Plan Upland Erosion Control, Revegetation and Maintenance ppm Parts per million Procedures Wetland and Waterbody Construction and Mitigation Procedures Project North Main Line Relocation Project ROW Rights-of-way SNG Southern Natural Gas Company, L.L.C. TBD To be determined TWS Temporary workspace USACE U.S. Army Corps of Engineers USFWS U.S. Fish and Wildlife Service USGS U.S. Geological Survey July 2014 v

8 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT 1.0 GENERAL PROJECT DESCRIPTION Southern Natural Gas Company, L.L.C. (SNG) is proposing to relocate a portion of its natural gas pipeline system known as the North Main Lines in Jefferson County, Alabama. SNG is also proposing to relocate a portion of its natural gas pipeline system known as the Calera Branch Line in Jefferson County, Alabama. SNG is relocating its pipelines in order to protect them from subsidence that will result from longwall coal mining operations that are planned underneath the current location of the existing lines. SNG will submit an application for its North Main Lines Relocation Project (Project) with the Federal Energy Regulatory Commission (FERC or Commission) for authorization under Section 7 of the Natural Gas Act (NGA) to construct and operate these facilities. The proposed Project components will be regulated by the FERC, with other federal agencies acting as cooperating partners in review of the Project under the National Environmental Policy Act (NEPA). SNG will use the FERC pre-filing process in preparing its application under Section 7 of the NGA. Resource Report No. 1 provides information on the proposed locations of each of the Project components, as well as the impacts associated with development of each. Resource Reports 2 through 4 and 6 through 9 will describe the existing environment by resource, the short-term potential impacts associated with Project construction, the long-term potential impacts associated with operation of the Project, and the proposed measures to minimize or mitigate these impacts. Resource Report 5 is required only if significant aboveground and major pipeline facilities are proposed. The Project only includes minor lengths of pipe, and there are no significant aboveground facilities associated with the Project. Therefore, Resource Report 5 is not applicable. Resource Report 10 will describe the alternatives considered. Resource Report 11 will describe the reliability and safety of the Project. Resource Report 12 is required for filings involving the replacement, abandonment by removal, or abandonment in place of pipeline facilities determined to have polychlorinated biphenyls (PCB) contamination in concentrations equal to or greater than 50 parts per million (ppm). The Project does not involve the replacement or abandonment of any existing pipeline facilities that are known to have PCBs. In addition, the Project does not involve compressor station modifications on sites that have been determined to have soils contaminated with PCBs). Therefore, Resource Report 12 is not required. Each Resource Report includes a compliance table showing how the FERC filing requirements (18 Code of Federal Regulations [CFR], Part ) have been met. 1.1 Proposed Facilities The Project will consist of the components as described below and listed in Tables and 1.1-2, and depicted in Figure 1.1-1: Relocation of approximately 3.52 miles of the existing and parallel 22-inch North Main Line and 24-inch North Main Loop Line from milepost (MP) to MP , and 24-inch 2nd North Main Line from MP to MP ; Installation of a new above-ground gate settings on each of the relocated North Main Lines; Relocation of approximately 0.44 miles of the existing 20-inch Calera Branch Line from MP 0.30 to MP 0.84; Abandonment in place of approximately 2.87 miles of the existing 22-inch North Main Line and 24-inch North Main Loop Line from MP to MP ; July

9 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT Abandonment in place of approximately 2.87 miles of the existing 24-inch 2nd North Main Loop Line from MP to MP ; and Abandonment in place of approximately 0.54 miles of the existing 20-inch Calera Branch Line from MP 0.30 to MP Location and Description of Facilities Pipeline Facilities The Project will include abandonment and relocation of the proposed pipeline facilities as described below, listed in Table 1.1-1, and depicted on Figure North Main Lines Relocation The North Main Lines Relocation will consist of the relocation of 3.52 miles of the existing and parallel 22-inch North Main Line, 24-inch North Main Loop Line, and 24-inch 2nd North Main Line, all located in Jefferson County, Alabama. The North Main Line and North Main Loop Line will be relocated from MP to MP The 2nd North Main Line will be relocated from MP to MP The relocated pipelines will be constructed parallel to each other and will be separated by 25 feet as measured from center line to center line. Calera Branch Line Relocation The Calera Branch line will consist of relocation of 0.44 miles of the 20-inch Calera Brach Line located in Jefferson County, Alabama. The Calera Branch Line will be relocated from MP 0.30 to MP Table Proposed Pipeline Facilities Facility County, State Pipe Diameter (inches) Milepost Range Length (miles) MAOP (b) Wall Thicknesses Grade of Steel Design Factors (c) North Main Line Relocation Jefferson, AL 22-inch to X North Main Loop Line Relocation Jefferson, AL 24-inch to X nd North Main Line Relocation Jefferson, AL 24-inch to X Calera Branch Line Relocation Jefferson, AL 20-inch 0.30 to X Total 3.96 (a) Notes: (a) The North Main Line, North Main Loop Line, and 2nd North Main Line will be installed parallel to each other; therefore, the total length only includes a total of 3.52 miles for the three pipelines combined. (b) MAOP maximum allowable operating pressure. (c) Design factors are used in the formula to determine the pipeline design pressure and generally reflect the maximum allowable percentage of specified minimum yield strength. Design factors equal 0.72 for Class 1, 0.60 for Class 2, and 0.50 for Class Aboveground Facilities The Project will include installation of a new aboveground gate setting on each of the relocated North Main Lines for a total of three new gate settings as listed in Table These facilities will be located entirely within the new permanent right-of-way for the relocated pipelines. July

10 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT Table Proposed Aboveground Facilities Facility (a) County, State Milepost Scope of Work North Main Line Gate Setting North Main Loop Line Gate Setting 2nd North Main Line Gate Setting Jefferson, AL Jefferson, AL Jefferson, AL Installation of a new aboveground gate setting and mainline valve on the relocated 22-inch North Main Line. Installation of a new aboveground gate setting and mainline valve on the relocated 24-inch North Main Loop Line. Installation of a new aboveground gate setting and mainline valve on the relocated 24-inch 2nd North Main Line. Notes: (a) The gate setting installed along the North Main Line, North Main Loop Line, and 2 nd North Main Lines will all be located within the same fenced aboveground facility which will be located entirely within the new permanent right-of-way for the relocated pipelines Purpose and Need SNG is proposing to relocate its existing lines to protect them from subsidence that will result from longwall coal mining operations that are planned to take place underneath the current location of the existing lines beginning in September SNG proposes to relocate the three existing North Main Lines north of the planned mining operations and the existing Calera Branch Line east of the planned mining operations Mapping and Aerial Photography The specific locations of the proposed Project facilities are shown on United States Geological Survey (USGS) 7.5-minute quadrangle maps (1 inch = 2,000 feet)/national Wetland Inventory (NWI) maps, and on preliminary pipeline construction aerial alignments (1 inch = 100 feet) which are provided in Appendix 1.A (Project Mapping). Preliminary pipeline construction aerial alignment sheets depict the proposed pipeline centerline location, temporary workspace (TWS) requirements within and adjacent to the existing rights-of-way (ROW) and additional temporary workspace (ATWS) requirements in specific locations. July

11 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT Figure General Project Location July

12 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT 1.2 Land Requirements Land requirements for the proposed Project facilities are summarized in Table and are discussed further in the following sections. Table Summary of Land Requirements for the North Main Line Relocation Project Pipeline Right-of-Way Facility Type/Facility Construction Area (acres) (a) Operation Area (acres) 22-inch North Main Line, 24-inch North Main Loop Line, and 24-inch 2nd North Main Line Relocation Calera Branch Line Relocation Aboveground Facilities Aboveground gate settings (b) N/A N/A Contractor Yard TBD 0.00 Access Roads Project Total Notes: (a) Construction area includes the total acres of workspace required for construction of the Project, including the operation area. (b) All aboveground gate setting will be located entirely within the permanent, maintained right-of-way for the relocated pipelines, and therefore will not require any additional acreage impacts. N/A Not applicable TBD to be determined Pipeline Facilities Construction of the proposed pipeline facilities will require acquisition of permanent (operational) and temporary ROW. The relocated pipelines will not be collocated with existing pipeline or other utility ROW or easements. Construction of the proposed pipeline facilities will require disturbance within the new permanent and temporary ROW as well as additional temporary workspaces, a contractor pipe storage/staging area, and access roads. These areas are collectively referred to as the construction work area. The locations and dimensions of the construction work area for the proposed pipeline facilities are shown on the construction alignment sheets provided in Appendix 1.A (Project Mapping). Construction of the proposed Project pipeline relocations will impact a total of acres of land. Land requirements for the pipeline facilities are presented in Table A detailed description of land use associated with the construction and operational acreages is provided in Resource Report 8 (Land Use, Recreation, and Aesthetics) of this Environmental Report (ER). July

13 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT Table Land Requirements for the North Main Line Relocation Project Pipeline Facilities Land Affected During Construction (acres) (a) Land Affected During Operations (acres) (b) Segment/Facility Length (miles) / No. of Sites Within Existing Maintained/ Operational Easement Outside Existing Maintained/ Operational Easement Within Existing Maintained/ Operational Easement Outside Existing Maintained/ Operational Easement (New Permanent Impact) 22-inch North Main Line, 24-inch North Main Loop Line, and 24-inch 2nd North Main Line Pipeline ATWS TBD 0.00 TBD 0.00 TBD Sub-Total 3.52 / TBD Calera Branch Line Pipeline ATWS TBD 0.00 TBD 0.00 TBD Sub-Total 0.44 / TBD Project Total 3.96 / TBD Notes: (a) All areas required for construction including areas that would be identified as operational ROW after Project completion. (b) Acreages are included within the reported acreage for Land Affected During Construction. TBD to be determined Pipeline Rights-of-way Table summarizes land requirements for construction and operation of the proposed pipeline facilities. The Project will involve the construction of 3.52 miles of relocated 22- and 24-inch pipeline and 0.44 miles of relocated 20-inch pipeline. The proposed North Main Line pipelines will use a typical 140- foot-wide construction ROW in uplands and a 100-foot-wide construction ROW in wetlands. The proposed Calera Branch Line pipeline will use a typical 90-foot-wide construction ROW in uplands and a 75-foot-wide construction ROW in wetlands. These typical widths are necessary to provide for a safe work environment, efficient construction through hilly terrain and steep slope conditions, and to promote effective implementation of the various industry-standard construction techniques. These construction ROW widths are also necessary to accommodate large equipment, pipe stringing and set-up, welding, the pipeline trench, temporary storage of topsoil and trench spoil, a travel lane, and to allow sufficient depth to bury the pipeline with sufficient cover to prevent accidents or impacts to the pipe. The inadvertent mixture of trench spoil and topsoil may be more common when construction is confined to a narrow ROW. The 90 to 140-foot construction ROW provides sufficient spoil storage for pipeline construction while still providing safe working conditions according to Occupational Safety and Health Administration (OSHA) regulations (29 CFR Part , Subpart P). SNG also proposes to use ATWS in certain areas for reasons stated below (Section ) and in Resource Report 2 (Water Use and Quality). Construction configurations are subject to change based upon site specific conditions or design changes. The detailed configuration for each pipeline is provided on the alignment sheets included in Appendix 1.A (Project Mapping). Refer to Resource Report 2 (Water July

14 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT Use and Quality) for a detailed discussion of SNG s justification for use of ATWS within 50 feet of certain wetland and waterbody crossings. The diameter of a pipeline significantly affects the amount of workspace needed to safely construct a high-pressure natural gas pipeline. Factors, such as the size and weight of the pipe, the size and weight of the construction equipment necessary to handle the pipe, presence of existing active pipelines within the construction ROW, topography, and soil conditions (type, strength, saturation), determine the minimum width needed for the typical construction ROW. Cross-section drawings illustrating various construction ROW configurations are included in Appendix 1.B (Construction Typicals). SNG generally proposes to operate new pipeline facilities within a 50-foot-wide permanent easement centered on the proposed pipelines. Because the North Main Line pipeline will be installed adjacent to each other, there will be some overlap of the permanent easement and the resulting total permanent easement for the North Main Line pipelines will be 100-feet-wide. SNG proposes to use a typical 25-foot offset, as measured from center line to center line, between each of the paralleling North Main Lines. SNG has set the minimum standards for the width of its easements for safe operation of its pipelines, which it strives to apply in a consistent fashion across its system. SNG requires the necessary easement widths to maintain the pipeline in accordance with the U.S. Department of Transportation (USDOT) regulations in Title 49 CFR Part 192, Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards, potential for structures to be placed near the pipelines, and the potential for trees and other large vegetation to grow too close to the pipelines Additional Temporary Workspace In addition to the nominal construction ROW described in Section , ATWS of varying sizes will be required as follows: To facilitate construction at road, railroad, wetland, waterbody, foreign utility line crossings, fence line crossings, and at locations where additional volumes of spoil will be generated; For equipment and material storage; For equipment turnarounds; At points of inflection (PI), crossover, and tie-in locations; In areas with steep sloping terrain and/or side slopes; For topsoil segregation; At areas where construction activities are affected by a combination of the above-listed issues; and At hydrostatic test water withdrawal and discharge locations. The need for ATWS at wetland and waterbody crossings is discussed in more detail in Resource Report 2 (Water Use and Quality). A summary of the locations and dimensions of all ATWS is provided in Resource Report 8 (Land Use, Recreation, and Aesthetics). ATWS is shown on the construction alignment sheets provided in the Appendix 1.A (Project Mapping) Access Roads Construction access to the proposed Project generally will be by way of the ROW and existing road network. However, where public road access is unavailable, SNG has identified private access roads necessary for the construction of the Project. Table lists private access roads proposed for use during construction of the Project. July

15 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT These access roads may require modifications or improvements to safely support the anticipated loads and size of equipment and material movement. All of the access roads proposed for use during construction of the Project may require temporary widening beyond the original road footprint to accommodate construction equipment and stringing trucks as shown in Table Project personnel will use existing parking or approved construction work areas and access roads for vehicle parking. Vehicles and equipment will not be permitted outside the approved construction footprint. After construction of the pipeline is completed, temporary access roads will be restored to preconstruction condition or better. Disturbance outside of the original footprint due to widening will be recontoured and seeded with an appropriate seed mix unless otherwise requested by the landowner or land management agency. Improvements made to temporary access roads may be left in place if approved by the landowner. Existing access roads, including proposed modifications to these roads, are identified in Table and depicted on the topographic maps provided in Appendix 1.A (Project Mapping) Contractor Yards SNG is in the process of identifying contractor yards that will be used during construction of the Project. These contractor yards will be utilized to store machinery, equipment, and construction material, including large quantities of pipe during construction activities, as well as to provide pipeline personnel a temporary area to serve as field office location, restroom facilities, and parking area for personal vehicles. More information on contractor yards will be provided in a subsequent filing of this resource report. July

16 Facility/ Road ID County MP Table Proposed Access Roads for the North Main Line Relocation Project New or Existing Proposed Temporary or Permanent Use (a) Ownership/ Management Existing Road Width x Length (feet) 22-inch North Main Line, 24-inch North Main Loop Line, and 24-inch 2nd North Main Line Existing Surface RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT Proposed Improvement Justification for Improvement Construction Area (acres) AR-1 Jefferson Existing Temporary TBD 25x5,232 TBD TBD TBD AR-1A Jefferson TBD Existing Temporary TBD 25x256 TBD TBD TBD AR-1B Jefferson TBD Existing Temporary TBD 25x571 TBD TBD TBD AR-2 Jefferson TBD Existing Temporary TBD 25x595 TBD TBD TBD AR-3 Jefferson TBD Existing Temporary TBD 25x988 TBD TBD TBD AR-4 Jefferson TBD Existing Temporary TBD 25x177 TBD TBD TBD AR-5 Jefferson TBD Existing Temporary TBD 25x1,937 TBD TBD TBD AR-6 Jefferson TBD Existing Temporary TBD 25x1,645 TBD TBD TBD AR-7 Jefferson Existing Temporary TBD 25x3,813 TBD TBD TBD Calera Branch Line AR-8 Jefferson TBD TBD TBD TBD 25x2,550 TBD TBD TBD AR-9 Jefferson TBD TBD TBD TBD 25x2,253 TBD TBD TBD AR-10 Jefferson TBD TBD TBD TBD 25x570 TBD TBD TBD Operation Area (acres) Access Road Total Notes: (a) Permanent or temporary refers to the continual use of the access road and not the impact. Access roads are considered a permanent impact in terms of land requirements. TBD to be determined July

17 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT Aboveground Facilities The aboveground gate settings will all be installed entirely within the proposed permanent, maintained right-of-way for the pipeline loops, and therefore will not require any additional acreage impacts. The locations of the proposed aboveground gate settings are depicted on the construction alignment sheets provided in Appendix 1.A (Project Mappings). 1.3 Construction Schedule and Workforce SNG proposes to begin construction of the Project in the first quarter of 2016 in order to have the new facilities in service by September The total construction workforce will include approximately 87 workers. The proposed construction schedule and anticipated temporary and permanent workforce needs are summarized in Table Table Anticipated Construction Schedule and Workforce for the North Main Line Relocation Project Estimated Workforce Needs Construction Start Date Construction End Date Duration (months) Temporary Construction Personnel Additional Permanent Personnel 1 st quarter rd quarter SNG s standard pipeline construction operating hours are 7:00 a.m. to 7:00 p.m., Monday through Saturday, but may vary to comply with local ordinances. This daily schedule allows optimal use of daylight hours and offers safer construction conditions during peak construction season. 1.4 Construction Procedures All facilities described in this ER will be designed, constructed, tested, operated, and maintained in accordance with the USDOT regulations in Title 49 CFR Part 192, Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards, and other applicable federal, state, and local regulations. SNG intends to adopt the FERC s 2013 version of the Upland Erosion Control, Revegetation, and Maintenance Plan (Plan) (FERC 2013a) and the Wetland and Waterbody Construction and Mitigation Procedures (Procedures) (FERC 2013b) with minor modifications. SNG s Plan and Procedures will be provided in its submittal of its draft resource reports. A table at the front of each of the documents will identify SNG s proposed modifications along with its justification for each modification. To protect nearby wetlands, waterbodies, and other sensitive resources, SNG will implement the spill prevention and control measures identified in SNG s Procedures and the requirements stipulated in the state National Pollutant Discharge Elimination System (NPDES) relevant to each Project site. If construction activities will require the storage of 1,320 gallons or more of oil onsite, SNG s construction July

18 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT contractor will develop and implement a Spill Prevention, Control, and Countermeasures Plan in accordance with 49 CFR Environmental Compliance, Training, Inspectors, and Project Responsibility SNG is committed to designing, building, and conducting its operations in ways that have the least adverse impact on human health and the environment. SNG will ensure that all environmental requirements are incorporated in construction documents, will conduct environmental training, will employ one dedicated environmental inspector (EI) during all phases of construction, cleanup and restoration. SNG will include Project-specific environmental requirements that will be part of the construction contract documents. These documents and requirements will include applicable permits, SNG s Plan and Procedures, FERC certificate conditions, and other relevant environmental conditions. SNG will effectively communicate to its contractor(s) the environmental requirements for the Project at each of the Project sites. If, during construction, a contractor is found to be in violation of an environmental requirement, SNG will require an immediate correction of the problem, issue a stop work order if necessary, and resolve any disciplinary issue with the contractor. Before any construction begins, SNG will conduct intensive environmental training for the inspector(s) to familiarize them with the specific conditions and issues associated with the Project. Separate training of the contractor personnel also will be undertaken to familiarize all personnel with the environmental requirements of the Project. As new personnel are assigned to the Project, SNG will conduct training for these personnel as well. SNG considers the role of the EI to be a critical part of the Construction Management Team. During construction, the EI will have the authority at all times to assess and evaluate any construction-related activity to confirm compliance with the environmental conditions of all local, state, and federal agency permits or certificates. SNG will be responsible for the selection, employment, training, and guidance of the EI. The duties of the EI are to monitor and report on those activities designated as environmental scope of work in the construction contracts, such as; erosion control, revegetation, construction signage, environmental permit compliance, threatened and endangered species protection, and fencing of environmentally sensitive sites. The role of the EI is not to inspect the physical construction of the facilities (welding, lowering-in, pressure testing, etc.), but to provide guidance to other inspectors monitoring these activities related to the conditions of environmental permits or certificates. The EI will attend the daily meetings of the Construction Management Team. The EI will report, as appropriate, to the Chief Construction Inspector and Construction Manager at the daily meetings on all environmental-related activities of the construction contractor(s). SNG s Environmental Affairs personnel will maintain contact with the EI at the appropriate levels throughout construction of the Project. The EI will be present onsite on a daily basis during construction of the Project. The objective is to keep the Project moving forward within the guidelines established by SNG and the regulating environmental agencies. The EI will work with the construction foreman/crew to provide interpretation and enforcement of all local, state and federal environmental regulations. If an agreement on an interpretation of an environmental condition cannot be reached between the EI and construction personnel, the issue will be raised to the environmental project manager and SNG s project manager as necessary. The field crews will then implement the interpretation and final resolution. The environmental project manager and SNG s project manager will review daily reports generated by the EI. The EI will also complete field reports for agency notification. The environmental project manager and SNG s project manager will review all agency notifications. Any agency notifications required by permit conditions will be made by the environmental project manager. July

19 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT In compliance with SNG s Plan and Procedures, the SNG EI will oversee and document environmental compliance and prepare FERC weekly/biweekly reports throughout construction. All Project-related construction personnel will be informed of the EI s authority and will receive job-appropriate training prior to beginning work on the Project General Pipeline Construction Procedures Construction of the proposed pipeline facilities will incorporate conventional overland construction techniques for natural gas pipelines which will follow a set of sequential operations, as described in the following paragraphs and depicted in Typical Pipeline Construction Sequence drawing provided in Appendix 1.B (Construction Typicals). The various construction ROW configurations are depicted in Typical Right-of-Way Cross Section drawings provided in Appendix 1.B (Construction Typicals). In the typical pipeline construction scenario, the construction spread (crew) proceeds along the pipeline ROW in one continuous operation. The entire process is coordinated in such a manner as to minimize the total time land is exposed to erosional processes after disturbance Surveying and Staking Affected landowners will be notified before the preconstruction survey and staking are started. After these notifications, a land survey crew will survey and stake the outside limits of the proposed construction ROW and ATWS areas, the centerline of the pipeline, wetlands, drainages, highway and railroad crossings, and access roads. Existing utility lines (e.g., cables, conduits, and pipelines) will be located and marked with flags, stakes, or other devices to prevent accidental damage during pipeline construction. Avoidance areas such as wetland boundaries, cultural resource sites, and sensitive species habitat that are to be avoided will be marked with appropriate fencing or flagging based on environmental and archeological surveys Erosion and Sedimentation Control Temporary soil erosion and sedimentation control measures will be installed along the proposed construction ROW, ATWS areas, access roads, and other work areas, as applicable, in accordance with SNG s Plan and Procedures as well as any state-specific NPDES permit requirements. Stormwater will be managed within the construction workspaces by the implementation of temporary and permanent construction best management practices (BMPs). The escape of sediment from the site will be prevented/minimized by the installation of erosion and sediment control measures and practices prior to, or concurrent with, land disturbing activities. SNG will implement the following measures to control erosion and sedimentation during construction: Perimeter controls (silt fence and straw bales) will be installed in accordance with SNG s Plan and Procedures as well as any state-specific NPDES permit requirements. Straw bales will be certified weed free. Straw bale barriers, silt fence, check dams, sandbags, waddles, or similar sediment trap devices will be installed according to specifications in SNG s Plan and Procedures as well as any statespecific NPDES permit requirements to prevent sediments from leaving the site and to prevent erosion from storm water discharge. Construction entrance/exits will be installed according to specifications in SNG s Plan and Procedures as well as any state-specific NPDES permit requirements at entrances and exits to the site to reduce or eliminate the transport of mud from the construction area onto public rightsof-way by motor vehicles or by runoff. If needed to maintain drainage, a riprap culvert, with storm drain outlet protection, will be installed beneath the construction exit. July

20 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT Clearing and Grading Following the installation of the erosion and sedimentation control measures, the ROW will be cleared and graded to remove brush, trees, roots, logs, and other obstructions such as large rocks and stumps. Crops and other non-woody vegetation may be mowed while other crops may be left in place to limit soil erosion. The construction work area will undergo some grading as necessary to create a safe working area, accommodate pipe-bending equipment, and allow the operation and travel of construction equipment. The natural drainage will be preserved to the extent practical. A fence crew, typically operating in conjunction with the clearing crews, will cut and brace fences along the route where necessary. Temporary gates will be installed to control livestock and limit public access where necessary. The fence crew will also fence off the avoidance areas with temporary construction fence. Timber will be removed only when necessary for construction purposes. Merchantable timber may be limbed, cut, and removed from the ROW. Timber that is not merchantable and other vegetative debris may be chipped, burned, or disposed according to applicable regulations. Burning, if used, will be conducted in accordance with state and local burn permits and regulations and also performed in a manner to minimize fire hazard and prevent heat damage to surrounding vegetation. Stumps may be buried only in non-tilled land on the construction work area and only with the agreement of the appropriate landowner. Stumps and other timber considered non-merchantable may be used to construct off-road vehicle barriers at the request of the landowner. Disposal of materials taken offsite will be done at commercial facilities or at other approved locations. After the ROW has been cleared and the stumps removed, grading may be necessary to create a reasonably level working surface to allow safe passage of equipment. A maximum of 12 inches of topsoil will typically be removed or stripped and segregated in agricultural lands that are annually cultivated or have crops rotated. Additional areas in the construction work area outside of agricultural areas may be stripped at the request of a land management agency or landowner. If the topsoil is less than 12 inches in depth, the actual depth of the topsoil will be removed and segregated. The actual depth, if less than 12 inches, will be determined during construction by the contractor in the field. The contractor will strip to a depth where the topsoil and lower horizon of soil are visible in equal amounts as determined by soil color. Typically, soil will be stripped from the following areas: the ditch, spoil storage area in uplands, and the ditch in unsaturated, unfarmed wetlands. Topsoil that has been removed or stripped will typically be stored on the spoil side of the construction work area. However, circumstances may require that the topsoil be stored or placed on the working side adjacent to the ditch or at the edge of the construction work area. In residential areas when requested by landowners, up to 12 inches of topsoil may be removed and segregated unless topsoil replacement is deemed more efficient by the contractor or more desirable by the landowner. Water trucks will be used where necessary to control dust emissions along the construction travel lane. Additional erosion and sedimentation control devices will be installed as needed during and after clearing and grading of the construction work area. Erosion and sedimentation control devices installed at this point could include soil erosion-control blankets, silt fences, straw bales, diversion dikes, rip-rap channels, water bars, water spreaders, and sediment traps or basins Trenching Trench excavation is necessary to bury the pipeline underground. The trench for installation of the pipe will be excavated with rotary trenching machine, a track-mounted backhoe, or similar equipment. Blasting may be required to excavate the trench in some locations where rock substrates are encountered at depths that interfere with conventional excavation or rock-trenching methods. In agricultural and residential areas, subsoil will be stockpiled separately from topsoil. July

21 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT Before construction starts, the one-call system for Alabama will be contacted in order to have buried utilities identified and flagged. Trenching near these foreign utilities will only begin after completing the appropriate procedures. Typically, the bottom of the trench will be excavated at least 12 inches wider than the diameter of the pipe (i.e., 34 inches for a 22-inch diameter pipe). The sides of the trench may be sloped for safety, depending on the soil characteristic and trench depth. The width of the top of the trench will vary depending on the soil stability and safety risks at a given location. The depth of the trench will be a minimum of six feet. SNG will meet or exceed USDOT requirements for the depth of the trench. Typically, when backhoes are used, the trench will be excavated before the welding of the pipe. When rotary wheel ditching machines are used, the trench is typically excavated after the welding of the pipe and shortly before the pipe laying. If backhoes are used to excavate, the trench will typically be wider than a rotary-wheel-ditched trench. Excavated soils will be stockpiled along the ROW, typically on the spoil side (i.e., the opposite side of the trench away from the construction traffic and pipe assembly area). All dirt from the ditch will either be returned to the ditch after the pipeline is installed or will be spread in a thin layer across the construction work area. Only tree stumps and roots, excess rock, and construction debris will be removed and placed in an approved dumpsite. SNG will employ BMPs described in its Plan for the Project to minimize erosion during trenching operations and construction activities (additional detail will be provided in Resource Report 7 Soils). Measures will also be taken to minimize free flow of water into the trench and through the trench into waterbodies. Construction through waterbodies will be scheduled so that the trench is cut just prior to pipe-laying activities. Where fluming or other similar measures are used, the crossing will be designed to pass high flows and prevent excessive scouring. Trenching across waterbodies will be performed in accordance with all applicable federal and state requirements. Any drain tiles and irrigation systems will be restored to landowner satisfaction after pipeline installation so as not to impact future agricultural operations. In addition, the pipeline will be constructed so as not to interfere with the construction of foreign utilities. All existing permanent survey and reference monuments within the ROW will be protected during construction Pipe Laying Steel pipe for the pipeline will typically be procured in nominal 40-foot and 80-foot lengths or joints, protected with a fusion-bonded epoxy coating applied at the factory (the beveled ends will be left uncoated for welding). Prior to the construction, pipe will be moved into the Project area by rail or truck and placed in contractor yard or strung directly onto the construction work area. Typically, trucks or other vehicles will travel along the ROW and lay or string the individual joints parallel to the centerline of the trench so they are easily accessible to construction personnel. The joints are usually strung on the working side of the trench for bending, welding, coating, and lowering-in operations and the associated inspection activities. This configuration will allow the subsequent lineup and welding operations to proceed efficiently. At waterbody crossings, the amount of pipe that will be required to span the waterbody typically will be stockpiled in temporary work areas on one or both banks of the waterbody Bending, Welding, Coating, and Lowering-In Typically, pipe will be delivered to the construction work area in straight sections where it is bent to conform to changes required for pipeline alignment and to conform to natural ground contours. Bending of the sections will be performed by track-mounted hydraulic pipe-bending machines. After the pipe has been bent, it will be aligned and welded. Typically, the joints will be welded together with assistance of external line-up clamps or internal traveling line-up clamps. As each weld is completed, the pipe will be placed on supports adjacent to the trench. Each weld will be inspected visually and radiographically (or by some other Nondestructive Testing method) by qualified inspectors. July

22 RESOURCE REPORT NO. 1 PROJECT DESCRIPTION SOUTHERN NATURAL GAS COMPANY, L.L.C. NORTH MAIN LINES RELOCATION PROJECT All bending, welding and coating in the field will comply with USDOT CFR Title 49, Part 192, Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards and will also comply with the latest edition of American Petroleum Institute (API) Standard To ensure that the assembled pipe will meet or exceed the design strength requirements and to ensure weld quality and integrity, the welds will be visually inspected and non-destructively tested using radiographic (x-ray) or another approved test method, in accordance with API Standards. Welds displaying inclusions (void spaces) or other defects will be cut out (removed) and new welds will be installed and retested. Following welding, all pipe will be protected with an external coating designed to protect the pipe from corrosion. Except for a small area at the end of the pipe joint, this coating is applied at the pipe mill before shipment to the site. After welding together in the field, pipe joints will be coated with similar or compatible materials. Before lowering-in, the pipe coating will be inspected for defects, called holidays, with special attention given to all field-applied coatings. All holidays will be repaired prior to lowering-in following construction specifications. In some locations, it may be necessary to provide negative buoyancy to the pipe by means of set-on concrete weights, concrete coating, pipe sacks, and/or soil anchors. Set-on weights and concrete coating may be fabricated in the Project area or purchased off-site and installed in the Project area. No concrete coating fabrication will take place within 100 feet of waterbodies or wetlands. The completed section of pipe will be lifted off the temporary supports and lowered into the trench by side-boom tractors or, in some cases, other equipment. The ditch will be free of debris and foreign material. If the bottom of the trench is rocky, the pipe may be lowered onto sandbags or support pillows. Alternative sources of padding for pipe in rocky soil may be sand, gravel or screened soil, excluding topsoil. In areas where the excavated trench material may damage the pipe, the pipe will be protected with a protective wrap of rock shield. The pipe is placed in the ditch so as to conform to the alignment of the ditch and also not to damage the coating. Trench dewatering may be required in certain locations in order to prevent the pipe from floating and also to perform certain limited activities in the trench. Trench dewatering will be performed in accordance with the BMPs described in SNG s Procedures Tie-ins At select locations, such as stream crossings, road crossings, and terrain changes along the pipeline system, the pipe will be lowered into the trench in segments. The segments will then be welded together or tied-in prior to backfilling. A crew will be assigned to making these tie-ins at designated locations ahead of the backfill operations Padding and Backfilling After lowering the pipe in the trench, the trench will be backfilled using a bulldozer, backhoe, auger-type backfilling machine, mormon board, or other suitable equipment. Trench breakers will be installed as necessary in accordance with SNG s Plan and Procedures to prevent erosion in the trench at stream crossings and on slopes. Backfill usually consists of the material originally excavated from the trench. However, in some cases additional backfill from other sources may be required. Any excess excavated materials or materials unsuitable for backfill will be spread evenly over the construction workspace or, disposed of in accordance with applicable regulations. In areas where topsoil has been segregated, the subsoil will be placed in the trench first and then the topsoil will be placed over the subsoil. Backfilling will occur to grade or higher to accommodate any future soil settlement. Tilling of the subsoil and topsoil will be done at the request of the landowner. During backfilling, special care will be taken to minimize erosion potential, by restoring the natural contour of the ground and surface drainage patterns as close to preconstruction conditions as practicable. In order to minimize the possibility of subsurface water flow in the trench on slopes along the pipeline, sand July