2021 EMP Website Version

Page 7 of 10 Chemical Analysis The chemical composition of the pipe material should be determined using an appropriate method to validate the pipe specification and grade, as well as, to determine its carbon equivalent (for weldability issues). Spectrochemical methods (i.e. optical emission) are usually employed to determine steel chemical compositions. Wet chemical methods may also be used. Energy dispersive spectroscopy (EDS) and either x-ray diffraction (XRD) or x-ray photoelectron spectroscopy (XPS) analyses may be used to determine elements and compounds present in surface deposits that were collected during the visual examination. . Metallurgical Laboratory Failure Examination Protocol 01/06/2004

Page 8 of 10 Table 1 – Background Information Data Sheet (fill in all applicable fields) No. Line Pipe Attribute Data 1 Operating Company 2 Product Transported 3 Line Name and Number and/or System Name 4 Survey Station and Mile Post 5 Date of Failure / Incident / Anomaly 6 How Failure / Incident / Anomaly was found 7 Closest City or town, County, and State 8 Pipe Nominal Outside Diameter 9 Pipe Nominal Wall Thickness 10 Pipe Grade 11 Pipe Seam Type and approx. Joint Length 12 Pipe Manufacturer 13 Year of Installation 14 Depth of Cover in area of failure 15 Coating Type 16 Cathodic Protection Type and Year installed (if applicable) 17 Distance to nearest rectifier or anode bed (if applicable) 18 Terrain and Soil Conditions, including Soil Ph (if applicable) Distance to Upstream and 19 Downstream Compressor or Pumping Station 20 Distance to Upstream and Downstream Girth Welds Position of Failure / Incident / 21 Anomaly on Pipe (from top or bottom and/or O’clock position) 22 Pressure at time and location of Failure / Incident / Anomaly 23 Normal Operating Pressure at Location of Failure / Incident / Anomaly 24 MOP, MAOP, Design Factor, and/or Location Class Metallurgical Laboratory Failure Examination Protocol 01/06/2004

No. Line Pipe Attribute Page 9 of 10 25 Date, Test Pressure, and Duration Data of most recent Hydrostatic Test (if applicable) 26 Hydrostatic Test Pressure at Location of Failure / Incident / Anomaly (if applicable) 27 Other Comments or Observations 28 Name, Telephone, and Fax Numbers of contact for Operator for further Questions 29 Name, Telephone, and Fax Numbers of contact for OPS for further Questions 30 NRC Report Number (if applicable) Sketch a schematic of the failure area showing direction of flow and other prominent features: Metallurgical Laboratory Failure Examination Protocol 01/06/2004

Page 10 of 10 Table 2 – A testing methodology for generating Charpy V-notch Curves for line pipe steels Note: The following is an example test protocol to generate a Charpy V-notch (CVN) Curve and to determine the Ductile-to-Brittle Transition Temperature (DBTT) for API-X52 and lower grade line pipe. Prepare a minimum of 12 Charpy V-notch specimens (preferably 16 specimens) in the L-T (transverse) direction and perform CVN testing according to ASTM E23. Test 1 specimen at -20°F Test 1 specimen at 0°F If CVN values are less than 4 ft-lbs. (full scale), then consider this a part of the lower shelf temperatures Test 1 specimen at 70°F Test 1 specimen at 100°F If CVN values are greater than 20 ft-lbs. and are close together, then consider this part of the upper shelf temperatures. If the difference in CVN values is more than 5 ft-lbs., then: Test 1 specimen at 70°F Test 1 specimen at 50°F If CVN values are close together, then the DBTT is likely to be around 50°F, then: Test 1 specimen at 50°F Test 1 specimen at 40°F Test 1 specimen at 20°F If the difference in CVN values at 50°F and 70°F is greater than 5ft-lbs., then Test 1 specimen at 50°F Test 1 specimen at 60°F Test the remaining specimens at other temperatures, as appropriate, to ensure that data has been collected at temperatures that the testing has shown to be of importance. Draw the CVN Curve to a best-fit curve plotting Impact Energy (ft-lbs.) versus Temperature (°F). Determine the DBTT from the CVN Curve (in °F). Determine the Temperature (in °F) corresponding to 15 ft-lbs. absorbed impact energy. Determine the Fracture Appearance Transition Temperature (in °F) corresponding to 50% and/or 80% shear. Determine the Upper-Shelf Energy (in ft-lbs.). Determine the Lower-Shelf Energy (in ft-lbs) Metallurgical Laboratory Failure Examination Protocol 01/06/2004

EMP      List of Annexes                     Planholder List              Annex 08           

Annex 8 – Plan Holder List  Annex 8 Plan Holder List EFG Employees and Gas Control  The Emergency Management Program (EMP) is available to all EFG employees and Gas Control through  SharePoint.  Employees should ensure that the EMP is synced to their computers so the most current  revision of the EMP is available even if offline.    Regulatory Agencies Plan Location Revision Date Distribution Date MnOPS – St. Paul, MN Electronic Copy March 29, 2021 Next Inspection The Canada Energy Regulator – Calgary, Alberta Hard Copy N/A N/A Electronic Copy March 29, 2021 March 31, 2021 Mobile EOC Hard Copy March 29, 2021 N/A   Emergency Response and Public Officials Emergency Response and Public Officials are provided Emergency Management Program Summaries  distributed through mailings and training sessions. 

EMP      List of Annexes                         Contact Reference            Annex 09         

Annex 09 – Contact List  {Redacted – Privacy} 

EMP      List of Annexes                             EMP Summary for Emergency Responders          Annex 10       

Annex 10 – Program Summary  {Redacted – Privacy} 

EMP      List of Annexes                                 External Resources        Annex 11     

EMP      List of Annexes                                     Maps        Annex 12      

Annex 12 – Maps  {Redacted – Security} 

External Resource Manual   Revision Date: M  arch 2020     Contents Mutual Aid Partners .................................................................................................................................. 2  Contractors ............................................................................................................................................... 3  Engineers and Consultants ........................................................................................................................ 5  Failure Investigation – Materials Testing Laboratories ............................................................................. 5  Emergency Gas Suppliers .......................................................................................................................... 6    1 | P a g e    

Mutual Aid Partners EFG does not currently have formal mutual aid agreements in place.  Previous attempts to enter into  formal mutual aid agreements with other pipeline operators have been unsuccessful.  It is anticipated  that in an emergency other pipeline operators would offer assistance therefore the following table  contains contact information for pipeline operators that could be contacted for assistance.   MERC Enbridge Gas Management Services  Phone:        519 436 4697   519 436 4545   MERC (24 Hr) control room   Hotline:      519 365 0682   800‐889‐4970  After Hours Cell:    800 770 3039    807 274 5378      807 274 5378  Gas Control      N/W District Duty Manager  Ft Frances (call Centre)      TC Energy Northern Natural Gas Barry Adamson  Pipeline Emergency Operations   Communication Coordinator  888 367‐6671  Canada Gas Operations Emergency    Preparedness Specialist    Direct Line:     204.478.6926  Cell:      204.471.7918  Fax:       204.878.2828  TCPL 24 Hr.  Phone:  888 982 7222     Centra Gas   Centra Gas  ‐ Steinbach   Phone:      204‐326‐9805      2 | P a g e    

Contractors Most emergency response on EFG’s system will include the utilization of contractors to provide the  required materials, equipment, and qualified personnel to assist EFG personnel in bringing the  emergency under control and effecting any repairs that may be required.  The table below lists  contractors that could be contacted to assist in response to emergencies.  US Companies Equipment/Services Available United Piping Incorporated Website  Welding and Fabrication  4510 Airport Rd.    Pipefitting  Duluth, MN  55811    Pipeline Coating  Ph: 218.727.7676 or 800.269.2968     Excavation including Swamp/Marsh/Marine Excavation  Fax: 218.727.1536  Directional Drilling    Right of Way Maintenance  Charp’s  Welding and Fabrication  Hwy. 5 North, Lot #4, Industrial Park  Pipefitting  Clearbrook, MN 56634  Pipeline coating  Phone ‐ (218) 776‐3080  Excavation  Fax ‐(218) 776‐3095  Hydrostatic Testing    Mainline Pipeline Construction - From 2\" to 42\" pipe Minnesota Limited Website  Hydrostatic Testing Northern Region Office  Emergency Response 944 Industrial Park Drive  Right-of-Way Clearing Bemidji, MN 56601  Cathodic / Pipe Coating Repair Phone:(218) 755‐9595  Hot Taps Fax: (218) 755‐9596  Pipe Fabrication   Road Boring/ Split Casings Crane Services TEAM Website  Vacuum Excavation 391 Bridgepoint Way  South Saint Paul, MN 55075  Online leak sealing and repair    Phone No: 651‐768‐0006  Hot Tapping     Line Stops and Pipeline Plugging  TD Williamson ‐ Romeoville Sales/Service  565 Anderson Drive ‐ Unit A,   Valve Repair  Romeoville, IL 60446  NDT and Inspection  Phone: (815) 407‐0675  Fax: (815) 407‐0680  Hot Tapping/Stopple , equipment and services  Toll Free: 1‐800‐828‐1988  Hydrostatic Testing  Pipeline Cleaning/Pigging/Drying  Website  3 | P a g e    

Canadian Companies Equipment/Services Available Summit Pipeline Services Website  Pipeline construction   46 Cooper Rd.   Pipeline replacement   Rosslyn, ON P7K 0E3   Maintenance and rehabilitation     Excavation of loaded facilities   Office: (807) 939‐1100   Right of way preparation and rehabilitation   Toll free: 1‐800‐804‐6055   Corrosion remediation   Fax: (807) 939‐1166   Leak repair     Valve replacement   Hot tap installation   TD Williamson Website  Sandblasting and coating of pipe ( tape or spray  application )   24‐hour Emergency  Hydrostatic testing   Pipeline cleaning   877‐717‐4122  Clock spring system installation   Mechanical sleeve installation   Petrosleeve, Inc Website  Hot Tapping/Stopple , equipment and services  608‐21 Avenue  Hydrostatic Testing  Nisku Industrial Park  Pipeline Cleaning/Pigging/Drying  Nisku, Alberta  Canada T9E 8G3  Epoxy Resin‐Filled repair sleeves     Phone:   780 955‐2401  Pressure containing sleeves  Fax:   780 955‐3466  Emergency Installation ‐ 24/7  TEAM  Website  In an emergency situation, PETROSLEEVE® can rapidly  340 Longman Crescent  mobilize Qualified Installers to work with other crews to  Regina, SK S4N 614  install the sleeve.  Canada      Phone No: 306‐584‐9633    Online leak sealing and repair  Hot Tapping  Line Stops and Pipeline Plugging  Valve Repair  NDT and Inspection  4 | P a g e    

Engineers and Consultants   Depending on the nature of the emergency additional expertise may be required to analyze the incident  and to help develop a procedure that will safely mitigate the emergency condition on a temporary  and/or permanent basis.  The table below contains contact information for engineering firms that can  be utilized when additional expertise is required.  US Canada Lake Superior Consulting    Aecon Utility Engineering  130 West Superior Street, Suite 614  20 Carlson Court, Suite 800  Duluth, MN 55802  Toronto, ON M9W 7K6  Phone:  218‐727‐3141  Phone: (416) 293 7004  Fax:  218‐727‐9151  Toll free: 1 (877) 232 2677    Website  Website      Failure Investigation – Materials Testing Laboratories   Whenever any material fails or there is a natural gas related incident of significance, it must be  thoroughly investigated as soon as possible to determine the cause of the failure and if any corrective  measures are required.    Material Failure  It shall be reported to Management whenever a piece of material fails to comply with the standards to  which it was originally purchased under, or fails to perform the function for which it was intended.    Management shall initiate the failure investigation.  When an investigation is to be conducted, the failed  material shall be removed with care being taken not to damage or distort the item.  The item will then  be examined to determine the cause of failure, and a report shall be filed on the results of the  examination and possible ways of preventing a recurrence of the failure.  The Custody Transfer Record  shall be used to document the chain of custody of the material as it is transported to the appropriate  testing facility.  As appropriate the Metallurgical Examination Protocol can be used as a guide to  determine the probable causes of failure.    US Canada Materials Evaluation and Engineering Inc.  Envista Forensics  13805 1st Avenue North, Suite 400   1258 73 Ave SE   Plymouth, MN 55441  Calgary, AB T2H 2V5    Phone:  763‐449‐8870   Canada  Fax:   763‐449‐8699  Phone:  888‐782‐3473  Website  Fax:   866 336 5131    Website    5 | P a g e    

Emergency Gas Suppliers   US    Northern Natural Gas CNG and other emergency response support  Operations Communication Coordinator  1‐(888) 367‐6671  Emergency pipeline outages     Temporary gas supply for industrial plants   Temporary gas supply for commercial facilities   CenterPoint Energy  Temporary gas supply for residential communities     Mobile Energy Solutions    844‐662‐4534  Canada Emergency pipeline outages   Temporary gas supply for industrial plants   Manitoba Hydro   Temporary gas supply for commercial facilities   Bob Schkawritka, ABCP, CIM  Temporary gas supply for residential communities   Corporate Emergency Response Coordinator       Business Support Services   Office ‐ 204‐360‐5179  Cell ‐ 204‐771‐4042    6 | P a g e