EQT MIDSTREAM COMPANIES DESIGN, CONSTRUCTION & COMMISSIONING REQUIREMENTS FOR INTERCONNECTS APPENDIX B Total Pages: 54

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1 Table of Contents Scope... 5 Summary of Interconnect Process... 5 Basic Equipment Requirements Design Details Specific Requirements for Interconnect Designs Reference Codes and Industry Standards Gathering vs. Transmission Equipment Requirements Design and Sizing Parameters for all Interconnects Required Design Data and Calculations Required Drawings and Reviews Site Considerations Lot and Tap Location Site Grading Buildings / Structures Power Telecommunication Site Access and Security Station Piping and Valves Station Piping Flanged Connections Bypasses Valves Remote Shutoff Valve (Station Isolation Valve) Gas Conditioning Filter / Separators Liquid Level Shutoff Meters Meter Tube Fabrication Meter Tubes Supports Inlet and Outlet Valves Location of Throttling Devices Ultrasonic Meters Calibration Orifice Meters Interconnect Requirements.docx Page 1 Revisions / Save Date: 03/27/2017

2 1.5.9 Turbine Meters Turbine Module Lifting Mechanism Other Meter Types Run Sequencing Flow Computers, RTUs and Transmitters Manifolds, Tubing and Fittings for Instrumentation Manifolds Tubing Tube Fittings Flow Control Pressure Control and Overpressure Protection Overpressure Protection Pressure Control Valves Regulation Bypass Control Valve Sizing and Selection Control Valve/Regulator Installation Pressure Control Instrumentation Heaters / Freeze protection Indirect Fired Heaters Catalytic Heaters Gas Quality Monitoring Odorization Cathodic Protection Isolating Flanges Cathodic Protection System Tubing-Isolating Unions Painting of Above Ground Piping Coating of Buried Piping Concrete Sleepers Below Grade to Above Grade Transition Above Grade Pipe Supports Corrosion Coupons A 2 full port ball valve must be installed at each 2 inch tap Electrical General Primary Power Systems Uninterruptible Power Systems (UPS) Interconnect Requirements.docx Page 2 Revisions / Save Date: 03/27/2017

3 2.1.3 DC Supply System Electrical Equipment Heat Tracing Electric Valve Operators Receptacle Types Design for Process Instrumentation, Logic Circuits, Alarm Circuits and Shutdown Systems Reliability Conduit and Seals Routing of Conduits in Extreme Temperature Environments General Purpose Sheet Metal Boxes Conduit Seals Cable Trays Cables/Wiring Instrument Wiring Electronic Instrument Wire and Cable Thermocouple Wire and Cable Equipment NEC ratings Classified Locations Area Classification Grounding Suitable grounding shall be installed to: Grounding for Safety of Personnel Grounding for Protection Against Static Electricity Grounding for Protection Against Lightning Grounding for Signal and Instrumentation Systems Grounding Systems Construction Requirements General - Job Site Safety and Environmental Requirements Welding Weld Procedures Weld Inspector Review of Welders Certification Non-Destructive Tests Pressure Tests Material Test Reports Red-line and As-Built Drawings Interconnect Requirements.docx Page 3 Revisions / Save Date: 03/27/2017

4 4 Commissioning Requirements Notifications Documents Required Prior to Commissioning Valve Tagging Exhibit Listings Version Control Interconnect Requirements.docx Page 4 Revisions / Save Date: 03/27/2017

5 Scope This document provides the minimum requirements for the design, construction and commissioning of measurement interconnects flowing gas to or from EQT Midstream. EQT Midstream includes, but is not limited to Equitrans LP, EQT Gathering, LLC and Allegheny Valley Connector. EQT Midstream companies are hereafter referred to as EQT. Parties delivering gas into or receiving gas from EQT are hereafter referred to as Customer. Provision of this document by EQT to Customer for Customer s use does not diminish Customer s responsibility for compliance with all Federal, State, and Local laws, regulations, codes and standards or good engineering judgment, as may be applicable. These requirements are intended to ensure: Minimal uncertainty in custody transfer gas measurement. Cost effective operation of the pipelines and related facilities in compliance with applicable laws, regulations, codes and standards. Safe working conditions for EQT and Customer personnel. Station design and construction meets EQT requirements for operations. EQT is afforded the opportunity to participate in shop or source inspections of meter tubes, orifice fittings, ultrasonic meters, and other critical materials and equipment items and all meter calibrations and inspections. EQT s Approved Vendors are used for equipment that EQT will operate. EQT reviews interconnect design drawings and equipment selection prior to construction by Customer. Discussions are held with the EQT Design Engineering department in order to receive approval to deviate from this standard. If granted, waivers and approval for deviation from standard will be issued in writing by EQT. Summary of Interconnect Process EQT reviews and processes interconnect tap requests in the order received. EQT Midstream s Producer Services Group serves as the primary source of customer contact and internal communication focus for all tap requests. Tap requests are submitted via under the Our Business tab, then select Customer Portal. After a tap request is submitted, it is reviewed by the appropriate planning, engineering and commercial groups within EQT. Producer Services will notify the customer of approval or denial of the tap request after the review process has been completed. If approved, an EQT Measurement Engineer will be assigned as the technical contact for the design, construction, and commissioning process. Interconnect Requirements.docx Page 5 Revisions / Save Date: 03/27/2017

6 The Measurement Engineer will coordinate a site visit with the Customer and required EQT departments. During the site visit, site prep work, specific equipment, piping design, and construction details will be reviewed. EQT will prepare and send the Interconnect Agreement and pipeline tap cost estimate to the Customer. The Interconnect Agreement will detail the responsibility requirements for each party. The Customer is responsible for executing the Interconnect Agreement and returning payment in the form of a check to Producer Services, 625 Liberty Ave., Suite 1700, Pittsburgh, PA Checks are made payable to Equitrans, LP, EQT Gathering, LLC, or Allegheny Valley Connector, respectively. EQT will not proceed with the next step until the executed Interconnect Agreement and payment have been received. Once the Interconnect Agreement and payment is received by EQT, the pipeline tap design drawings, pipeline tap construction material requisitions, land and environmental permits, etc. will be prepared and initiated by EQT. The Customer should also submit drawings of the interconnect and equipment quotes consistent with the specifications included in this document for review by the EQT Measurement Engineering department as soon as the agreement is executed and prior to any construction or major equipment purchases. EQT Measurement Engineering requires a minimum of 2 weeks for review. Appendix A of the Interconnect Agreement indicates which party is responsible for the design, installation, ownership, operation and maintenance of the interconnect facilities. Generally, the Customer is responsible for the purchase and installation of all equipment, electronics, and piping with the exception of the EQT pipeline tap. EQT reserves the right to inspect the construction of the interconnect site location or M&R site at any time with 24 hours prior notice to the Customer. Customer should notify EQT Producer Services at least three weeks prior to the expected inservice date, so pre-commissioning reviews can be scheduled. Prior to the full commissioning and Turn-in-Line (TIL) of a new Interconnect, Customer will submit to EQT all required construction, non-destructive tests, material/mill test reports (MTRs), meter calibration results and pre-commissioning checklists. Additionally, all required commercial agreements (e.g. Gathering Agreements, Operational Balancing Agreements, Transportation Service Agreements, etc.) should be fully executed and returned to EQT Producer Services department. In addition, for stations in which EQT will operate any valves, all valves will be tagged prior to TIL as per the requirements noted later in this document. SCADA point-to-point testing by EQT Field Measurement and Gas Control must be completed prior to TIL. Customer, within forty-five (45) days after TIL, will furnish to EQT as-built information as detailed in Construction Requirements, Section 3, including redline and As-Built Drawings, for the Interconnect facilities. Interconnect Requirements.docx Page 6 Revisions / Save Date: 03/27/2017

7 Basic Equipment Requirements All equipment operated by EQT shall be per the EQT Approved Manufacturer/Vendor List. Transmission Interconnect Station equipment includes gas conditioning filtration, meters, flow and pressure control valves, gas quality analysis/monitoring equipment, check valve, automated station isolation valve, telemetry and RTU or flow computer for SCADA, flow calculations and remote control of station equipment. Gathering Interconnect Station equipment includes gas conditioning filtration or other scrubber / liquid removal as required, meters, pressure control or limiting valves, check valve, flow computer for SCADA and flow calculations. For a generic responsibility matrix for transmission and gathering interconnects refer to Exhibit A of this document. For the basic transmission and gathering interconnect equipment layouts refer to Exhibit B of this document. 1 Design Details 1.1 Specific Requirements for Interconnect Designs Reference Codes and Industry Standards Designs should follow recommendations and requirements of the latest edition of various industry codes and standards including, but limited to: Title 49, Code of Federal Regulations, Part 192 Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards hereafter referred to as DOT 192 API Spec 5L Specification for Line Pipe API STD Welding of Pipelines and Related Facilities ASME Section IX Welding, Brazing and Fusing Qualifications ASME Section B31.8 Gas Transmission and Distribution Piping Systems API Manual of Petroleum Measurement Standards Chapter 14 Natural Gas Fluids Measurement Chapter 21 Flow Measurement Using Electronic Metering Systems NFPA 70, National Electrical Code AWS D1.1 - Structural Welding Code AGA Transmission Measurement Committee Reports Report 3, Orifice Metering of Natural Gas Report 7, Measurement of Natural Gas by Turbine Meters Interconnect Requirements.docx Page 7 Revisions / Save Date: 03/27/2017

8 Report 8, Compressibility Factor of Natural Gas and Related Hydrocarbon Gas Report 9, Measurement of Gas by Multipath Ultrasonic Meters Report 10, Speed of Sound in Natural gas and Other Related hydrocarbon Gases AGA CLEIGUA (XL1001) Classification of Locations for Electrical Installations in Gas Utility Areas API RP Classification of Locations for Electrical Installations at Petroleum Facilities IEEE Std Recommended Practice for Grounding of Industrial and Commercial Power Systems NESC - National Electrical Safety Code ICC IBC International Building Code Gathering vs. Transmission Equipment Requirements Unless specifically noted in the Interconnect Agreement, the following equipment is to be provided by Customer. Required equipment is documented in Appendix A of the Interconnect Agreement for each station. At EQT Transmission Interconnects: Ultrasonic Meters are the standard measurement equipment at stations with maximum design capacity greater than 10 MMscf/d. Orifice or Turbine meters will be considered at stations with maximum design capacity less than 10 MMscf/d or to accommodate specific flows or site conditions. The number, type and size of meters will be determined by expected operating pressure and flow conditions. Gas analysis / monitoring equipment is required for determining gas composition for stations with maximum design capacity over 10 MMscf/d. EQT reserves the right to request a gas chromatograph be installed at stations with a maximum design capacity between 5 MMscf/d and 10 MMscf/d. Moisture content monitoring equipment is required for receipt stations with a maximum design capacity of 5 MMscf/d or greater. EQT reserves the right to add a moisture analyzer requirement to any station with a design capacity less than 5 MMscf/d if elevated moisture levels are expected or have been observed in the past. For any site without a moisture analyzer, a Company-approved contractor shall periodically test for moisture as instructed by Company at Customer's sole expense. Contractor shall provide test results directly to Company. Remote control valves are required for pressure control, flow control and station shut-in at stations with a maximum design capacity over 5 MMscf/d. Local pneumatic overpressure protection (OPP) is required for all sites. Gas conditioning equipment is required at all receipt points. It shall be designed and sized to eliminate free liquids and particles greater than 0.5 microns at 99% Interconnect Requirements.docx Page 8 Revisions / Save Date: 03/27/2017

9 efficiency and limit water content to less than 7 lbs./mmcf. For stations with a maximum design capacity less than 5 MMscf/d, gas conditioning equipment shall be designed and sized to eliminate free liquids and particles greater than 5 microns at 99% efficiency and limit water content to less than 7 lbs./mmcf. Commercial 120VAC power is recommended. Primary and back-up telecommunications service is required. Additionally, a heater, an odorizer, and a H2S or oxygen analyzer may be required. Electronic flow computers with telemetry are required at all interconnects. At EQT Gathering Interconnects: Orifice meters are recommended at Gathering Receipt and Delivery Interconnects. Other meter types may be considered to accommodate specific flows or site conditions. Generally, gathering system stations do not require gas analysis / monitoring equipment, nor remote control valves for pressure, flow or shut-in. Local, pneumatic overpressure protection (OPP) for EQT s downstream pipeline system is required. Typically, 24VDC power is adequate. Primary telecommunication is cell, radio or satellite. Gas conditioning equipment is required to eliminate free liquids and particles greater than 8 microns at 98% efficiency. Local pipeline operations may require gas quality monitoring and / or a flow control valve with telemetry or more stringent water / particle removal. If applicable, these requirements will be noted. Electronic flow computers with telemetry are required at all interconnects. At Low Pressure Low Flow Interconnects Transmission and Gathering: Low flow interconnects are stations designed for a maximum flow of 1,000 Mscfd or less. Low pressure interconnects are stations designed with an MAOP of 100 psig or less. Positive displacement or orifice meters are recommended for low flow interconnects. Electronic flow computers with telemetry are required at all interconnects. Gas conditioning equipment is required to eliminate all free liquids. A positive shut off drip tank is acceptable. A particulate filter may be used in conjunction with a positive shut off drip tank. Continuous gas analysis / monitoring equipment is not required. A gas sample point must be incorporated in the design. Interconnect Requirements.docx Page 9 Revisions / Save Date: 03/27/2017

10 Solar power with backup batteries is acceptable. 24-volt DC power is typical. A check valve is required downstream of the meter to prevent back flow. Overpressure protection (OPP) is required at all interconnects. A primarymonitor regulator set is preferred, but a slam shut device or relief valve is acceptable. Manual inlet and outlet station isolation valves are required Design and Sizing Parameters for all Interconnects Designs must detail equipment and piping (facilities) to effectively provide for measurement, gas analysis, gas conditioning, flow control, pressure regulation, data acquisition, telemetry, odorization and other conditions as specified in the contractual arrangements between EQT and the Customer. All facilities shall be designed for the anticipated flow and pressure conditions at the Interconnect Station. Design consideration should be made for any expected increases in flows. Sizing Parameters for Equipment, Pipe and Fittings Facilities should be sized for the maximum flow rate at minimum pressure conditions and minimum flow rate at maximum pressure, unless there are mitigating conditions which require other design variables. Any mitigating conditions shall be provided in writing to the EQT Measurement Engineer. The following parameters shall be used for determining appropriately sized facilities for the Interconnect Station: All facilities shall be designed to meet the requirements of DOT 192 for Class III locations, unless located in a DOT 192 Class IV area. Regulation and Measurement headers should be sized so that the maximum gas velocity falls within a range of 30 to 40 ft/sec., but not to exceed the lesser of 55 ft/sec or 80% of erosional velocity. This velocity should be evaluated at the minimum pressure and maximum temperature associated with the design flow rate. Control valves and regulators shall be sized for a wide-open monitor and a working primary using the Normal Operating Pressure (NOP) differential from the low upstream NOP and high downstream NOP or 10 psid, which is greater. Orifice meters shall be sized as follows: Beta Range of 0.2 to 0.6 Maximum Differential of 325 water column - Meters operating over 300 psig. Maximum Differential of 125 water column - Meters operating between psig. Maximum Differential of 50 water column Meters operating between psig. Maximum Differential of 30 water column for meters operating below 50 psig. Interconnect Requirements.docx Page 10 Revisions / Save Date: 03/27/2017

11 Ultrasonic meters shall be sized for a velocity range of 5 80 ft/s through the meter tube. Turbine meters shall be sized using 90% of the manufacturer s maximum capacity rating. Scrubbers, separators and filters should be sized using 90% of the manufacturer s maximum capacity rating. Other equipment shall be sized using 90% or less of the manufacturer s maximum capacity rating. Design Pressure and Temperature All Interconnect piping and other pressure containing components (the facilities) shall be designed to the ANSI class commensurate with the highest Maximum Allowable Operating Pressure (MAOP) of the adjoining pipeline systems. The Interconnect facilities design shall be based on a design factor of 0.5 to meet DOT 192 Class III requirements, for all actual Class Locations 1, 2 and 3 and a design factor of 0.4 in actual Class Location 4 in accordance with DOT Part All ASME code vessels' MAWP (maximum allowable working pressure) should be designed to 110% or more of the station or pipeline MAOP. All vessels should be designed for a MDMT of -20 o F. All vessels shall be designed and tested at 1.5 x the design pressure. Interconnect facilities should be designed for ambient temperatures of -20 to +100 o F and gas temperatures of -20 to +100 o F. At Interconnects with large pressure drops, gas heaters may need to be added to maintain adequate gas temperatures at the pressure control valves and instrument gas supply systems. All gas delivered to EQT shall have a temperature of no less than 45 o F and no more than 100 o F Required Design Data and Calculations All meter station design calculations and equipment sizing specifications prepared by Customer / Customer s Design Firm should be reviewed by EQT prior to fabrication or construction of the facilities. Such review by EQT will in no way diminish Customer s responsibility for compliance with these requirements or with all applicable laws, regulations, codes and standards. Prior to construction or major equipment purchases Customer shall provide for EQT s review the following data and design calculations, as appropriate, for the Interconnect Station: Expected flow rates (maximum, normal, minimum) MMscfd and Mscfh, and any planned expansion. The MAOP and expected maximum, normal and minimum operating pressures of both EQT and Customer connecting pipeline systems Interconnect Requirements.docx Page 11 Revisions / Save Date: 03/27/2017

12 Expected flowing temperatures (maximum, normal, minimum) o F Expected Gas Compositions Specific Gravity, BTU, % methane, % ethane, %C3+, H 2S, O 2, N 2 and CO 2 Electrical Service Requirements Ultrasonic meter capacity (in MMscf/d) at 5 ft/s and 80 ft/s at minimum and maximum NOP and MAOP Orifice meter capacity (in MMscf/d) with 0.2 and 0.6 beta plates at 20 water column and maximum allowed differential (see Section 1.5.8) and at minimum and maximum NOP, and MAOP Turbine meter capacity (in MMscf/d) at 5% and 90% of recommended flow range at minimum and maximum NOP, and MAOP Control Valve or regulator capacity at minimum and maximum NOP, and MAOP and flow rates Relief valve sizing Temperature loss due to pressure drop across Interconnect Station Heater BTU calculations Noise calculations for all control valves, heaters or other noise generating equipment to be located at the Interconnect site or within 400 feet upstream of the Interconnect Filter capacity curves at minimum and maximum NOP, and MAOP and flow rates, including differential pressure drop across the filter elements and sump capacity Separator and scrubber gas through-put and liquid sump capacity. Velocity calculations for headers and main station piping Stress calculations to determine pipe wall, grade and %SMYS at MAOP Determination of connected and operating electrical loads in various modes of operation DC supply batteries and charger calculations Conduit or cable tray fill calculations Power factor correction when required Soil resistivity measurements and grounding system plan Odorization pump and tank calculations when required Other applicable calculations Required Drawings and Reviews Interconnect design drawings and bill of material lists prepared by Customer / Customer s Design Firm should be reviewed by EQT prior to fabrication or construction of the facilities. Interconnect Requirements.docx Page 12 Revisions / Save Date: 03/27/2017

13 Such review by EQT will in no way diminish Customer s responsibility for compliance with these requirements or with all applicable laws, regulations, codes and standards. Allow a minimum of 10 working days for EQT s review. At a minimum the customer should provide for EQT s review designs, drawings, and equipment specifications at the 30% and 95% complete level. At the 30% complete level - initial review, the design shall include a Piping and Instrumentation Diagram (P&ID), overall plot plan and major equipment descriptions. For final review, include the civil, mechanical, electrical drawings and a complete bill of material. Construction drawings submitted for EQT s review should be of sufficient scope and detail that a contractor could use them to install the equipment. The following elements should be included: 1.2 Site Considerations Civil/Structural drawings, including an overall site plot plan, grading plans, foundation drawings, building and fence details. Plot plan showing location of all piping and equipment, including Customer equipment on site and inlet and outlet piping for the interconnect station with all critical dimensions noted. Mechanical piping drawings with elevations and sections as necessary to fully describe the pipe, valves, fittings and equipment configuration and details, including the meter and control valve settings, gas conditioning equipment and piping leading to and away from the interconnect station. P&ID diagram to show the instrumentation of all measurement, control elements, gas quality sample points and any other equipment instrumentation complete with valve tagging. Electrical schematics on Plot Plan showing Hazardous Area Plan, conduit routing, cathodic protection plan and grounding plan. Electrical / Instrumentation wiring diagrams Conduit and Cable Schedule showing each circuit number, function, voltage, origin and termination, conduit and wire size (and estimated length), insulation type, and reference drawings. Bill of Materials including all pipe, valves, fittings, mechanical and electrical equipment and instrumentation Lot and Tap Location Customer is responsible to provide the Interconnect station site. Customer shall provide EQT with an executed and notarized Meter Site Agreement. Both the station lot and EQT tap location must have an on-site review by EQT personnel and be approved by EQT Operations, Engineering, Environmental and Land Groups. Site must be of adequate size for all piping and equipment and have sufficient clearances for personnel and vehicles to operate and maintain the station in a safe and efficient manner. If odorant delivery trucks or other large vehicles are expected to visit Interconnect Requirements.docx Page 13 Revisions / Save Date: 03/27/2017

14 the station in the course of normal operations, then adequate parking and turn-around space should be provided for such vehicles. Customer shall provide EQT with the right of ingress and egress at any time. Customer is responsible for access road up-keep and maintenance. The site must be accessible via standard 4-wheel drive SUV or pick-up truck at all times. Availability of power and telecommunication should be considered when locating an Interconnect station lot. EQT will determine the actual tap location on EQT s pipeline. Customer is required to build facilities to the edge of the EQT Right of Way (ROW). Customer is responsible for obtaining all required permits. Permits include, but are not limited to, local zoning permits, state highway permits, storm water management and/or environmental compliance requirements Site Grading All equipment must be installed level. All buried piping must be at the required depth. o Required depth is 36 minimum cover or as required for loading or as approved by EQT Design Engineering. Crown finished grade down from the center of the interconnect site at a 0.5% slope on each side if the site and drainage requirements permit. Slope at 0.5% over the length of the site if this offers better drainage Buildings / Structures Power At Transmission Interconnects where a gas chromatograph is required, a RTU / GC building is also required. Detailed RTU / GC building and equipment specifications and drawings will be provided by EQT. An information-only reference drawing is provided in the Exhibits to this document. EQT will provide detailed specifications and drawings for the required RTU / GC building and equipment for each Interconnect. Generally, EQT does not require buildings over meters and control valves equipment. If buildings are required due to specific operating reasons or local codes, the Customer will provide building drawings for EQT review prior to final sign-off with vendor. Customer is responsible to provide any required permits for all building and structures on the station lot. Unless specifically waived by EQT, the customer is responsible for purchasing and maintaining electric service. At Transmission Interconnects, single phase, 120VAC commercial power is required. UPS systems must also be provided and sized for at least 72 hours of operation if the primary power source fails. Interconnect Requirements.docx Page 14 Revisions / Save Date: 03/27/2017

15 Most gathering interconnects can use solar or thermal electric generated power systems with EQT approval. Station specific power provisions should be discussed with the EQT Measurement Engineer Telecommunication Unless specifically waived by EQT, the customer is responsible for purchasing and maintaining telecommunication service. EQT will determine the required telecommunication mode(s) for each interconnect station. Typically, transmission stations require two modes of communications, (primary and back-up) with the primary mode having a 2-5 minutes reporting frequency. Gathering systems communication requires a single mode with less frequent reporting Site Access and Security Unless specifically waived by EQT, all station lots will be fenced. The fenced area shall be large enough to enclose: a) all above ground facilities; b) to provide space for operational and maintenance access; c) to enclose all classified hazardous areas. Unless otherwise required by site permits or local codes, the fence should be a chain link fence, at least 8 - feet high, and topped with a three-strand barbed wire barrier. At least one vehicle gate with a minimum width of 12 - feet, and at least one pedestrian gate shall be provided at all meter stations. Placement of entrances should provide access to all facilities within the fenced area. Pedestrian gates shall open outward, be equipped with panic hardware and have security guards to eliminate the opportunity of opening the gate from outside of fence. All vehicle gates shall be equipped for locking with a padlock. At least one-yard light is required at Transmission Interconnects. A warning marker in accordance with Title 49, Code of Federal Regulations, Part shall be placed near the main entrance gate. The marker should show the name and emergency phone numbers of the Interconnect station operator(s) along with the other required information. Each operator - EQT and Customer, as appropriate, shall provide signage for their company. Normally, landscaping will be limited to re-vegetating cleared and unpaved areas with vegetation suitable for the local area. Trees and other natural vegetation may be left in buffer or peripheral areas to provide screening, noise attenuation, and to reduce storm water run-off. State or local agencies may prescribe special landscaping requirements. Areas covered with gravel, crushed stone or similar material shall be under-layered with geotextile fabric to prevent the growth of vegetation. Interconnect Requirements.docx Page 15 Revisions / Save Date: 03/27/2017

16 Sites which have 120VAC power will have their fence s grounded in accordance with EQT design standards. 1.3 Station Piping and Valves Station Piping All piping within the Interconnect Station shall be carbon steel and fully meet the requirements of API Spec 5L Specification for Line Pipe. EQT minimum grade pipe and fittings is X/Y42. Process piping shall be joined by welding or with flanges. On low pressure (<100 psig) gathering systems, the interconnect inlet piping inlet must be a minimum of 40 feet of steel pipe. Customer s compressor facilities should have a minimum of 400 feet of steel pipe between the compressor discharge piping and inlet piping at the Interconnect. For compressors less than 400 feet upstream of the interconnect point, the Customer must provide verification that pulsation dampening and gas cooling are satisfactory. Station headers and piping shall be designed for even flow distribution through meters and other equipment. Regulation and measurement headers should be sized so that the maximum gas velocity is based on the lesser value of the following: Flanged Connections 55 ft/sec or 80% erosional velocity at any pressure Flanges shall be weld neck, raised face and bored to meet the wall thickness of the connecting pipe. The flange yield strength should be equal or better than the pipe to which it will be welded. Pressure-temperature ratings shall conform to of ASME / ANSI B 16.5, Table 2 for Material Group 1.1 or MSS SP- 44, Table 3. Bolts shall be ASTM A193 Grade B7 full thread studs, with ASTM A194 Grade 2H heavy hex nuts and cadmium plating. All bolts shall be torqued to the manufacturer s recommendation, using a calibrated torque wrench. Both gasket and bolt materials should be considered when determining torque requirements. Torque tables will be supplied by EQT. Flange gaskets shall be precision spiral wound gaskets, with non-asbestos filler, stainless steel winding and 1/8 thick internal and external stainless steel gauge rings. Flanged joints (with the exception of flanges on hot tap valves), threaded joints, or tubing fittings shall not be installed underground. All above grade pipe shall be adequately supported with adjustable pipe supports. Pipe supports shall use epoxy chocks with PVC bonded to them. Pipe straps will have PVC Interconnect Requirements.docx Page 16 Revisions / Save Date: 03/27/2017

17 1.3.3 Bypasses bonded to the surface facing the pipe and allow for periodic inspection of the pipe coating. Higher gas velocities are acceptable for bypasses and other piping that is in service only intermittently or for short durations; but consideration must be given to potential for noise and erosion resulting from high velocity in such piping. Typically, a bypass that is one nominal pipe size smaller than the equipment being bypassed is acceptable. Velocities above 150 ft/sec should be avoided Valves All valves shall be purchased to EQT Valve Specifications and per the EQT Approved Manufacturers List. Station and equipment isolation valves shall be full port ball valves with raised faceflanged ends. Manual valves 6 or larger shall have either a gear or pneumatic operator. Bypass valves may be plug or gate style valves. Check valves shall be included on the outlet side of the Interconnect facilities. Instrumentation valves shall have a minimum working pressure of 3000 psig. All valves 2 and larger must contain a valve tag corresponding to the station P&ID nomenclature. Exhibit E details the type of tag required Remote Shutoff Valve (Station Isolation Valve) 1.4 Gas Conditioning The installation of a remote controlled isolation valve at Transmission Interconnects with flow rates greater than 5 MMscf/d may be required. Remote shutoff valves will use open / close signals directly from EQT s RTU to solenoid valves interfaced with the valve actuator. Remote station shutoff valves shall be full port ball valves with double-acting pneumatic piston actuators. In general, remote shutoff valves should be configured to fail in last position, but the specific failure mode shall be reviewed with the EQT Measurement Engineer prior to purchase. Power gas for remote shutoff valves shall be filtered, dried gas. Position feedback equipment should be installed on remote shutoff valves Filter / Separators Gas conditioning shall be located at the inlet of all Interconnect stations, unless specifically waived in writing by EQT. Interconnect Requirements.docx Page 17 Revisions / Save Date: 03/27/2017

18 At Transmission Interconnects, coalescing filters shall remove all particles and droplets greater than 0.5 microns at an efficiency of 99%. For stations with a maximum design capacity less than 5 MMscf/d, gas conditioning equipment shall be designed and sized to eliminate free liquids and particles greater than 5 microns at 99% efficiency. At Gathering Interconnects, gas conditioning equipment (filters / scrubbers / separators) shall remove all particles and droplets greater than 8 microns at an efficiency of 98%. The gas conditioning equipment should employ high-efficiency vane or tube type elements or other suitable mist extractor elements to remove liquid droplets. One or more filter / separators should be installed, and should have an aggregate capacity of 110% or greater than the maximum station flow rate. All filter / separator and other liquid removal vessels should be designed, fabricated, inspected and tested in accordance with Section VIII of the ASME Boiler and Pressure Vessel Code, Pressure Vessels - Division 1 and shall be code stamped. Test pressures shall be 1.5 x the vessel design pressure. An inlet and outlet valve should be installed on every vessel to allow the vessel to be isolated from the station piping for maintenance and inspection. Inspection openings should be provided as required by the ASME Code and as necessary to inspect vessel internals. Connections should be provided for clean out of the sump sections. Sumps should be equipped with high liquid level alarms. If operational experience dictates more stringent separation performance is necessary, the EQT engineer will determine the site specific requirements. All filter separators must be installed with a differential pressure gauge and a differential pressure transmitter Liquid Level Shutoff 1.5 Meters At low volume gathering interconnect stations (less than 5 MMscf/d) EQT may approve the use of a liquid level shut-off (LLSO) rather than a filter / separator / scrubber. This is a device that shuts off gas flow when liquid level exceeds the capacity of the vessel. Drawings will be provided by EQT based on each application Meter Tube Fabrication Meter tubes and settings all meter types Only EQT approved fabrication shops shall be used for meter setting or tube fabrications. Meter tubes purchased directly from the meter manufacturer are also acceptable. Pipe used in the fabrication of meter tubes should be meter run select pipe, meeting the dimensional and surface finish tolerances of AGA 3, 7 or 9, as appropriate, and manufactured under API Specification 5L. The pipe wall and grade shall meet the design pressure with a 0.5 design factor unless a 0.4 design Interconnect Requirements.docx Page 18 Revisions / Save Date: 03/27/2017

19 factor is required due to population density. EQT minimum grade pipe is X42. The spool piece between the flow conditioner and meter shall be smooth, round pipe with an average internal surface roughness of 50 to 250 micro inches. A flow conditioner is required for all ultrasonic, orifice and turbine meter tubes. The flow conditioner shall be a Canada Pipeline Accessories CPA 50E. All ultrasonic meter tubes shall be designed commensurate with ANSI class 600 due to MAOP requirements of the calibration labs. Meter tubes should have instrument tap connections for pressure taps, temperature wells, sample probes, etc. EQT s standard instrument taps size is ¾. Meter tube and setting piping vent taps shall be ½ for piping 4 or smaller, 1 for piping 6-12 and 2 for piping greater than 12. Location and purpose of taps shall be clearly indicated on drawings. All meter tube welds should be ground smooth internally, to match the contour of the pipe wall. Sensing Connections all meter types Pressure taps provided on the meter shall be used for sensing static and/or differential pressures. Temperature sensing connections on meter tubes shall be equipped with a thermowell. The thermowell shall be located 4 to 6 pipe diameters downstream of the meter. Thermowells shall be stainless steel bar stock wells, with ¾ MNPT external threads, internal ½ threads and bored to match the particular temperature element to be installed. Well shank should be tapered. Thermowells should be dimensioned to provide a representative gas temperature and should extend into the central third of the gas stream. In large diameter meter tubes, shorter length thermowells, with EQT Engineering approval, may be specified due to increased vibrations caused by higher velocities. Test wells should be equipped with a threaded plug and chain. Shop Testing and Inspection Meter tubes should be tested and inspected in the fabricator s shop. EQT shall be afforded the opportunity to witness all of these tests and inspections whether the meter tubes are purchased by EQT or by the Customer. A three-week notification to EQT is required prior to the completion of the meter tube fabrication, so that an in-shop inspection may be completed by EQT or its representative. Copies of all test and inspection reports shall be furnished to EQT, prior to installation. The meter tube and meter shall be inspected and documented to determine that diameter and length dimensions conform to the recommendations in AGA reports # 3, 7 or 9, as appropriate. Interconnect Requirements.docx Page 19 Revisions / Save Date: 03/27/2017

20 For orifice meters, bypass checks shall be conducted in accordance with Section of API MPMS to establish that there is no leakage across the orifice plate seal and no communication or leakage between pressure taps Meter Tubes In addition to documentation for tests and inspections described above, the fabricator shall provide certification that the meter tube assemblies comply with DOT 192, and furnish EQT with copies of hydrostatic strength tests, radiographic reports, other NDT and applicable quality control documents. Fabricators shall complete and certify a Meter Tube Inspection / Micrometer Report (Mic Sheet) for each orifice and ultrasonic meter tube. Meter tubes shall be installed square and level with the height of the top of the meter tube between 3 and 4 feet above finished grade. Spacing between the outside diameter of each run should be a minimum of 5 feet for operational and maintenance access Supports Meter tubes should be adequately supported with adjustable pipe supports. As a minimum, one support should be provided on the downstream section near the meter body, and a minimum of one support should be provided on each upstream section. Support design must provide for removal of the tube section for inspection and must ensure that the other tube sections are adequately supported Inlet and Outlet Valves Each meter run should have inlet and outlet valves so that the run can be isolated. Meter tube inlet/outlet isolation valves shall have the same nominal diameter as the meter tube. These valves shall be full port ball valves with raised face flanged ends. Valves 8 and larger should have either a gear or pneumatic operator. Outlet valves on secondary meter runs may be used for automatic tube switching. Run switching valves may be equipped with either single-acting (fail open) or double-acting (fail last) pneumatic actuators. Actuator details must be reviewed and approved by the EQT Measurement Engineer prior to purchase Location of Throttling Devices A throttling device such as a regulator, control valve or partially closed valve shall not be installed in close proximity to the ultrasonic meter. A header assembly should separate the meter setting from the control / regulator setting. The meter station should be designed to incorporate a minimum of two noise abatement fittings (deadheaded tee with blind flange or weld cap) between the noise generator (throttling device) and meter. A throttling device shall not be installed in line, upstream of the meter tube for orifice or turbine meters or within 8 pipe diameters downstream. This is to ensure that the flow profile is fully developed at the meter. Interconnect Requirements.docx Page 20 Revisions / Save Date: 03/27/2017

21 1.5.6 Ultrasonic Meters Calibration Meter tube assemblies and ultrasonic meters shall be designed, fabricated, tested, inspected and calibrated in accordance with all applicable requirements of the latest edition of AGA Transmission Measurement Committee Report No. 9, Measurement of Gas by Multipath Ultrasonic Meters, and EQT Ultrasonic Meter (USM) equipment specification. The number and size of ultrasonic meter runs should be selected for an optimum operating capacity between 5 ft/s and 80 ft/s in the meter tube at minimum and maximum NOP. Ultrasonic meter tubes shall be per the EQT Standard USM Drawing. EQT will provide the appropriate specific USM tube drawing. A 16 ultrasonic meter is the largest acceptable meter unless EQT Engineering provides specific approval. A 3-week notification to EQT is required prior to the flow calibration date of the Ultrasonic Meter so that EQT, or its representative, may witness the flow calibration. Customer shall authorize the calibration lab to share any and all test and calibration results with EQT. An EQT witness shall be present during the calibration test of the USM or have the ability to remotely witness. Calibration shall be performed at an EQT approved calibration facility. The entire meter tube assembly (including USM meter, spool pieces, flow conditioner, inspection tees, and any other piping) shall be calibrated together as one unit and remain as a complete assembly through installation. All thermowells and test wells shall be installed prior to calibration. Bidirectional ultrasonic meter assemblies shall be flow calibrated in both directions. USM's shall be tested and calibrated at flow rates provided in the EQT USM Equipment Specification. All tests and inspections shall be thoroughly documented and copies of all test and inspection reports should be furnished to EQT prior to commissioning Orifice Meters Orifice meter tube assemblies, orifice fittings and orifice plates shall be designed, fabricated, tested and inspected in accordance with all applicable requirements of the latest edition of AGA Report Number 3 and per the EQT Orifice Meter Equipment Specification. The number and size of orifice meter runs should be designed to meter the expected high flow rate at the minimum pressure and the low flow rate at the maximum pressure. The maximum differential pressure allowed is as follows: Interconnect Requirements.docx Page 21 Revisions / Save Date: 03/27/2017

22 o o Meters operating at pressures greater than 300 PSIG Beta ratios between 0.2 and 0.6 and differentials between w.c. Meters operating between 100 psig and 300 psig Beta ratios between 0.2 and 0.6 and max differential of 125 w.c. o o Meters operating between 50 Psig and 100 Psig Beta ratios between 0.2 and 0.6 and max differential of 50 w.c. Meters operating below 50 Psig Beta ratios between 0.2 and 0.6 and max differential of 30 w.c. Flange tap orifice meters are not acceptable. Only orifice fittings by an EQT approved manufacturers are acceptable. Dual chamber orifice fittings should be considered where flow interruptions are unacceptable or for meters 8 or larger. Orifice fittings with telemetering type fittings, having four pairs of differential pressure taps, are preferred. Orifice plates shall be concentric, square edge orifice plates conforming to the requirements of AGA-3/API Orifice plate material shall be Type 304 or 316 stainless steel. Orifice plate thickness shall be equal to the recommended thickness of API /AGA 3. Only machined orifice plates are acceptable (not stamped) Turbine Meters Turbine meters may only be installed at interconnects with EQT where flow, pressure or local site conditions preclude the installation of orifice or ultrasonic meters. Prior EQT measurement engineering approval is required for turbine meter installations. Meter tube assemblies and turbine meters shall be designed, fabricated, tested and inspected in accordance with all applicable requirements of the latest edition of AGA Transmission Measurement Committee Report No. 7 and EQT Turbine Meters Equipment Specification. Turbine meters shall be sized to operate between 5 and 90% of the manufacturer s maximum capacity rating. The number and size of turbine meter runs should be selected to measure the maximum flow rate at the minimum pressure and the minimum flow rate at the maximum pressure, while maintaining flow rates of individual meters within 5-90 % of the manufacturer s recommended operating range. A Welker automatic oiler, model number OIP-2BK is required on every turbine meter. The turbine meter shall be equipped with a slot sensor to output uncorrected pulse to the EQT flow computer. An external pulser may be used for check or secondary measurement. Interconnect Requirements.docx Page 22 Revisions / Save Date: 03/27/2017

23 The meter tube blowdown size shall be limited as specified by AGA 7. A restriction plate shall be installed as specified in AGA Turbine Module Lifting Mechanism For all turbine meters 6 inches or greater, a McMaster Carr jib crane (or equal) shall be provided for the removal and installation of the turbine meter module. This crane (P/N 3244T1) should have a lifting capacity of 1000 lbs., and a 10 ft high x 10 ft span arm that should be constructed of 10-inch x inch steel I-beam. This crane should be fitted with a 1000 lb. hoist (P/N 3094T12) and a 1000 lb. chain hoist trolley flyer (P/N 3269T5) Other Meter Types To address specific flow or pressure conditions outside the recommended operating ranges for ultrasonic, orifice or turbine meters, other meter types will be considered. The review and approval of the EQT Measurement Engineer is required prior to using an alternate meter type Run Sequencing When multiple meter runs are necessary to achieve reliable measurement over the full range of expected flow rates and operating conditions, the number, configuration and type of meters must be reviewed and approved by the EQT Measurement Engineer. In multi-run stations, header design is critical to achieving even flow distribution and fully developed flow profiles at the meter. It is preferred that multiple meter runs are of the same type, size and configuration. Automatic tube switching should be provided for stations with multiple meter runs to automatically bring tubes on line, or take tubes off line as required to maintain reliable measurement within each meter s recommended flow range. Outlet valves on secondary meter runs may be used for automatic tube switching. 1.6 Flow Computers, RTUs and Transmitters EQT s standard flow computer is the Thermo-Fisher Autopilot Pro. Each meter shall have a dedicated multivariable transmitter (MVT) which will include differential pressure (DP), static pressure (P) and temperature (T). EQT s standard MVT is the Thermo-Fisher Automitter. The MVT should be located immediately adjacent to the meter with the exception of orifice meters where the MVT should be directly mounted to the meter. The EQT Measurement Engineer will provide the Customer any further specific requirements during the design review. At interconnects that require a Gas Chromatograph (GC) building, the Autopilot Pro will be located inside the GC building. The Autopilot Pro provides the remote control function and communication with any auxiliary equipment as specified by EQT (i.e. gas chromatograph, moisture analyzer, O2 analyzer, etc.). The Customer can arrange with the RTU provider to have the Autopilot Pro shipped to the GC building fabrication shop for installation prior to delivery to the Interconnect site. 1.7 Manifolds, Tubing and Fittings for Instrumentation Manifolds Manifolds shall be 304 or 316 stainless steel and machined from solid bar stock. All measurement manifolds shall have full bore valves with Teflon seats. Interconnect Requirements.docx Page 23 Revisions / Save Date: 03/27/2017

24 Orifice meters require 5 valve manifolds at the multivariable transmitter. All pressure transmitters require 2 valve manifolds located at the transmitter Tubing All tubing must be constructed of 316 Stainless Steel or dual stamped 316 / 316L Stainless Steel if it meets the minimum chemistry and mechanical properties of 316 stainless steel. Tubing shall be marked per 49 CFR , Marking of Materials. At a minimum, this must include the manufacturer, the grade and material, the ASTM specification that the tubing complies with, the heat number, whether the tubing is seamless or welded, and the final heat-treatment temperature in degrees Fahrenheit if under 1900 o F. Tubing must not exceed a Rockwell hardness of B90 after annealing All tubing used below grade must be coated Tube Fittings Fittings shall be made of 316 stainless steel. The minimum yield strength of the fitting should equal that of the tubing or be of sufficient wall thickness to equal the design pressure. Unless an isolation fitting is used, all flareless tube fittings should match the material of the attached tubing. All fittings planned for operation at pressures greater than 500 PSI shall have a double ferrule design consisting of machined pieces. 1.8 Flow Control At Transmission Interconnects, remote set point flow control is required unless specifically waived by EQT. EQT will operate the flow control via the Autopilot Pro RTU. In most stations, the flow control function can be accomplished with a standard RTU configuration and minimal or no additional equipment beyond that required for downstream pressure control and position feedback with a digital valve controller (DVC). 1.9 Pressure Control and Overpressure Protection All Interconnects will require local pneumatic overpressure protection (OPP) for the downstream pipeline. In addition to the OPP, all Transmission Interconnects, and some Gathering Interconnects, will require primary pressure control. Separate devices are required for the primary pressure control and the OPP Overpressure Protection OPP is normally provided by a wide-open monitor control valve or regulator at an interconnect station that also has a primary pressure control valve. At Gathering Interconnects where a single device is used solely for OPP, a slam-shut or security valve may be used with EQT approval. Relief valves are not recommended. Interconnect Requirements.docx Page 24 Revisions / Save Date: 03/27/2017

25 Check valves are not acceptable as an OPP device. Monitor control valves shall be local pneumatic control only and shall not be equipped for remote set point control. Monitor or OPP control valves should fail closed in a failed condition Pressure Control Valves Pressure control valves should be globe or ball-type control valves with single acting diaphragm with spring return or piston actuators. Specific manufacturer and model must be approved by the EQT Measurement Engineer, prior to purchase. Primary control valve should fail open or in last position on loss of signal. Remote set point pressure control valves shall have a local (backup) pneumatic pressure controller. Instrument supply and pilot gas for pressure control valves shall be filtered, dried gas. EQT will provide standard instrument supply system descriptions and drawings. Each pressure control valve or regulator shall have an individual pressure sensing tap and instrument supply system. Position feedback equipment shall be installed on remote set point controller valves Regulation Bypass A control valve/regulation bypass should be considered at all pressure control settings where flow cannot be interrupted and which have only a single regulation run. The bypass run should be designed with a plug valve that can be greased to prevent leakage. The bypass valve must have a locking device Control Valve Sizing and Selection Control valves and regulators shall be sized for a wide-open monitor and a working primary using the Normal Operating Pressure (NOP) differential from the low upstream NOP and high downstream NOP or 10psid, which is greater. Pressure and flow control valves should be sized to operate between 10% and 90% open over the range of design flow rates and pressures. Multiple parallel control valve runs may be installed as required to achieve the required turndown. Sizing calculations shall include noise calculations. Noise abatement trim, acoustic insulation, extra heavy wall pipe, or other noise abatement measures should be implemented if predicted noise levels exceed 85 db at three feet, or if noise levels exceed lower limits as specified by federal, state or local regulations Control Valve/Regulator Installation Control valves and regulators shall be installed above grade. Control valves and regulators should be installed downstream of measurement. Interconnect Requirements.docx Page 25 Revisions / Save Date: 03/27/2017

26 Control valves and regulators in parallel runs shall be installed using appropriately sized headers on the inlet and outlet piping. Isolation block valves shall be installed on each side of regulation run. Block valves shall be full port ball valves with raised face-flanged ends. The control valve body or regulators, downstream block valve, and piping between the control valve and the downstream block valve shall be rated and tested for the station inlet (higher) MAOP. Each pressure control valve and regulator shall have a separate tap connection on the downstream piping or header as a pressure sensing point for each of the pressure control devices. A pressure sense connection with tap valve and pressure indicator shall be installed on either side of pressure control valves or regulators within the block valves Pressure Control Instrumentation All pressure sensing and instrument supply lines shall be installed, supported and routed to prevent damage or freezing from temperature variations and physical disturbances. A separate process control line / instrument supply source shall be designed and installed on each pressure control and overpressure protection device to ensure a single failure does not incapacitate both the monitor and primary control. Each pressure sensing connection on main gas piping shall have a valve at the main gas piping. Where a pressure gauge or transmitter is to be installed, a two valve stainless steel manifold shall be used. Where a pressure sensing device is to be connected to the same tap in addition to a pressure gauge/transmitter, install a stainless steel three valve manifold. Instrument supply and pressure sensing lines shall be installed above grade and be of 316 stainless steel tubing. High quality, double-ferrule, stainless steel tube fittings shall be used. Tubing should be kept as short as practical and sloped to drain to the main gas line Heaters / Freeze protection Indirect Fired Heaters Indirect, gas fired, water bath heaters to be operated by EQT shall conform to the EQT Gas Heater Specification and API Specification 12K Indirect Type Oil Field Heaters. Heaters should be situated such that the heater coil and burner can be removed for inspection. The heaters should be designed to maintain the required gas outlet temperature under the most severe specified conditions of gas flow rate and gas inlet and outlet pressure and temperature. Interconnect Requirements.docx Page 26 Revisions / Save Date: 03/27/2017

27 Heater location shall conform to AGA CLEIGUA (XL1001). Heaters should be purchased as a complete unit. Selection of the control system shall be evaluated for each project Catalytic Heaters Local heating of pressure control valves or regulators, instrument supply systems and pilots to prevent ice or hydrate formation may be done with gas fueled catalytic heaters, where the size of the Interconnect station, or the probability of a freeze problem does not justify the installation of an indirect water bath heater to heat the entire gas stream. Catalytic heaters with electric start shall be equipped with thermostatic control and safety shutdown. Catalytic heaters and all accessory devices shall be certified for the hazardous area classification of the area in which they are to be installed and conform to AGA CLEIGUA (XL1001). Catalytic heater installations shall be in strict accordance with the manufacturer s instructions Gas Quality Monitoring Large Transmission interconnects require gas quality monitoring for gas composition and moisture analysis. Other contaminates, such as O2, and H2S, may also be required to be monitored if present in the gas source Odorization The EQT Measurement Engineer will provide the Customer full equipment specifications and drawings for construction of the gas chromatograph (GC) building and included equipment. See Exhibit C to this document for an example reference drawing of EQT s standard GC building and equipment. Transmission interconnects may require odorization of the gas prior to entering the transmission pipeline. The EQT Measurement or Compliance Engineer will determine if odorization is required and will provide the Customer full equipment specifications Cathodic Protection The Interconnect station cathodic protection shall be review by EQT engineering prior to construction. Piping in Interconnect stations should be cathodically protected as follows: Isolating Flanges Piping between EQT and Customer must be electrically isolated. This is normally accomplished through the use of isolating flanges installed at the demarcation point between the two companies, on the station side of the demarcation valve. Isolating flanges shall be assembled with full-faced isolating gaskets with O-rings, isolating sleeves and double insulating washers on the flange bolts. Use of underground isolation joints is discouraged and isolating flanges underground are prohibited. If an isolating joint is installed, EQT should review the proposed installation. Interconnect Requirements.docx Page 27 Revisions / Save Date: 03/27/2017

28 Each isolation joint must have a test station. EQT will provide a standard drawing for the test station. All meter runs must have isolating flanges on the inlet and outlet of the meter tube Cathodic Protection System The Interconnect station piping shall be protected with a cathodic protection system; either with a dedicated system, or where practical, by bonding to the cathodic protection system of a connected pipeline. The system may be either a galvanic system or an impressed current system. At most Interconnect stations with minimal buried piping, a galvanic system will be used. Pipelines susceptible to induced current from power lines shall be isolated from the Interconnect station piping and the Interconnect piping shall be protected using magnesium anodes Tubing-Isolating Unions Electrically isolated tubing unions should be installed to isolate transmitters located outside of the meter station isolation flanges from the meter station piping. Any electrical connections for power or communications must be isolated from station piping by either a dielectric tube fitting or dielectric flange isolators on top-works Painting of Above Ground Piping On EQT operated and/or maintained facilities, all above ground piping shall be abrasive blasted to SSPC SP-10 or NACE No. 2 near white metal finish and painted as per the latest edition of the EQT Design and Construction Standard Corrosion Control for Construction. Piping and equipment furnished with an acceptable and compatible shop applied primer need not be re- blasted and re-primed. In such cases, defects in shop primer should be repaired and intermediate and finish paint applied as above. Instruments, nameplates, stainless steel, galvanized steel, brass, aluminum and glass should not be painted and should be masked and protected during abrasive blasting and painting Coating of Buried Piping On EQT operated and/or maintained facilities, all buried piping shall be coated as per the latest edition of the EQT Design and Construction Standard Corrosion Control for Construction. All buried piping shall be coated as outlined below. Underground coating shall extend between 6 and 12 inches above grade Piping to be field coated must be thoroughly cleaned and surfaces prepared. Abrasive blasting to SSPC SP-10 or NACE No 2 near-white metal is the required surface preparation method for all field applied coatings. Interconnect Requirements.docx Page 28 Revisions / Save Date: 03/27/2017

29 Acceptable coatings for underground piping include: Fusion-bonded, thin-film epoxy; Denso Protal 7200 (7125); SPC SP-2888; or Primer and Wax Tape. Surface preparation, application and curing of primers, and application and curing of field applied coatings and field joints shall be in accordance with the manufacturer s instructions. All coatings on buried piping shall be inspected visually and with an electronic holiday detector. Any damaged coating or holidays discovered shall be repaired and reinspected prior to backfilling the piping Concrete Sleepers Below grade piping resting on concrete supports or Sakrete bags shall be coated with 40 mils DFT of either Denso Protal 7200 or 7125 two-part epoxy completely around the circumference of the pipe for a length of 6 inches past each end of the concrete form. If the pipe was mill coated with FBE, apply 30 mils DFT of either the Denso Protal 7200 or 7125 directly over top of the FBE completely around the circumference of the pipe for a length of 6 inches past each end of the concrete or Sakrete Below Grade to Above Grade Transition The below ground to above ground transition piping will be coated with either FBE or a twopart epoxy Above Grade Pipe Supports The above ground pipe supports will be epoxy chocks with PVC bonded to them. Pipe straps will have PVC bonded to the surface facing the pipe and be removable to allow periodic inspection of the coating. The piping at all above ground pipe supports with operating temperatures up to 200 o F will be protected by applying Denso Protal 7200 two-part epoxy (40 mils) around the circumference of the pipe. The Denso Protal epoxy coating will be applied as directed by the manufacturer and will extend a minimum of 6 inches beyond the edge of the support surface Corrosion Coupons Customer shall make available a 2 inch tap above ground on the main gas piping at the station for a corrosion coupon. EQT reserves the right to install a corrosion coupon in these taps as needed. If the station has regulation, a 2 inch tap must be available upstream and downstream of the regulation point. 2 A 2 full port ball valve must be installed at each 2 inch tap Electrical 2.1 General The following basic requirements are to be used in the design of electrical facilities for EQT operated stations. A detailed design drawing set, specific specifications and equipment manufacturer's installation instructions must be provided for each project. Interconnect Requirements.docx Page 29 Revisions / Save Date: 03/27/2017

30 All designs and installations for electrical systems and equipment shall meet the provisions of the National Electrical Code, other appropriate governing bodies and this specification. Drawings should clearly show all installation details, particularly where the method of installation is dictated by the area classification, safety of personnel or protection of equipment, or the proper and efficient operation of the station. The equipment and materials shall be installed in a neat and workmanlike manner. EQT will provide Customer with the EQT Standard Electrical Construction Drawing package Primary Power Systems The primary power system is defined as the portion of the electrical system operating at higher voltages than is used by the field equipment. In most cases, an electrical utility company will provide the primary power system. In cases where local commercial power is not available, the use of an alternate power supply MUST be approved by EQT prior to construction Uninterruptible Power Systems (UPS) Normally, a UPS will include a battery charger, battery and inverter combination designed and sized to provide highly reliable power to critical components or systems for a minimum of 72 hours. The UPS will be designed to supply the critical equipment at all times with a static transfer switch and/or a manual transfer switch to normal power in case of inverter failure. Voltage regulation is to be maintained at 2% of normal; the sine wave output with no more than a 5% harmonic distortion and with frequency regulated to 0.5%. Overload capability must be 125% of normal full load DC Supply System In general, 24 VDC power is to be provided for measurement equipment, SCADA and control systems, which require uninterruptible power for circuits during an emergency or loss of AC power. Sizing of batteries and charger is to provide capacity for normal operation of all DC circuits for at least 72 hours without AC power and recharge of batteries within 12 hours when AC power is restored. Battery capacity is to be determined in accordance with IEEE 485, and shall include a 20% design margin, an age compensation margin, and a temperature correction factor. The design for DC voltage drops due to cable size and operating time must accommodate equipment operating limits but may be no greater than 5% voltage drop at maximum load. DC power for telecommunication circuits shall be provided by the station DC supply system unless otherwise requested by the Company Electrical Equipment Equipment enclosures, motors, and other electrical devices used in mechanical systems or supplied on package equipment shall be specified in accordance with the proper area classification and the other provisions of this document. Equipment and materials shall be labeled, listed, certified, accepted, or otherwise determined to be suitable and safe for the Interconnect Requirements.docx Page 30 Revisions / Save Date: 03/27/2017

31 environmental conditions that will be present. This certification shall be by a nationally recognized testing laboratory such as one of the following: Underwriter's Laboratories (UL) Factory Mutual System (FM) Canadian Standards Association (CSA) Electrical Testing Laboratories, Inc. (ETL) Any other recognized testing laboratories approved by EQT. Where equipment is not readily available with appropriate label, it shall be so labeled by manufacturer to ascertain its acceptability Heat Tracing Heat tracing performed in classified locations is to be done with UL approved cable for the degree of hazard involved. All permanently installed heating cables in Division 2 locations are to be the constant watt per foot output type and are to be controlled by a sensing thermostat. Permanently installed heating cables in Division 1 locations may be mineral insulated cable or self-limiting cable. Insulation of thickness and type to make installation most efficient and effective shall be used over heating cables. The preferred line voltage for all heat tracing is 120 volts (AC) Electric Valve Operators Electric valve operators are to be sized for operation at full ANSI design pressure with safety factors added for operation at -20 o F, age and condition, and 25 % over torque. The valve operator shall be installed with a Division 2 rated integral disconnect as required by NEC Article Receptacle Types For Division 1 and 2 locations, 120-volt convenience receptacles shall be explosion proof interlocked receptacle-switch combination, GFCI protected, 20 amps, two wire with EGC. For outdoor non-classified locations, weatherproof GFCI protected receptacles rated 20 amps, two wire with EGC shall be furnished. For indoor non-classified locations receptacles shall be 20-amp, two wire, three-pole, mounted in a sheet steel box. 2.2 Design for Process Instrumentation, Logic Circuits, Alarm Circuits and Shutdown Systems Reliability Process instrumentation, logic circuits, alarm circuits, and shutdown systems shall be designed for the greatest reliability Power source for critical circuits shall be from an uninterruptible power system. Low-level instrumentation must be physically segregated from higher voltage circuits. Independent 120 volt systems shall be separated and protected with a single breaker. Interconnect Requirements.docx Page 31 Revisions / Save Date: 03/27/2017

32 Approximately 10% spare conductors, terminals and conduits should be provided with remote panels and field located terminal boxes to control building. Preferential consideration should be given to instrumentation systems, which are nonincendive types, or intrinsically safe instead of explosion-proof enclosures (especially the larger bolted cover enclosures) Conduit and Seals Unless otherwise specified by EQT, all above ground conduits shall be threaded, Schedule 40 rigid galvanized steel and 40-mil PVC coated rigid steel. Schedule 80 rigid PVC conduit is approved for underground use only. If Schedule 80 PVC is used, all elbows (or sweeps) shall be 40-mil PVC coated rigid galvanized conduit. All cut ends of conduit shall be reamed to remove rough edges. Schedule 40 galvanized rigid steel conduit shall be used above ground and shall be a minimum ¾ trade size. All rigid conduits for underground installations shall be a minimum 2 trade size, unless specified otherwise. Rigid steel conduit shall be threaded with dies that provide a taper of ¾ per foot Routing of Conduits in Extreme Temperature Environments All conduits shall be so routed to avoid proximity to high temperatures such as compressor discharge, steam or exhaust lines. Installing conduits in areas of flares, exhaust, safety relief valves, spillage, excessive corrosion, etc., shall be avoided. Conduits shall be installed so as to not interfere with the maintenance of nearby mechanical equipment General Purpose Sheet Metal Boxes General purpose sheet metal boxes may be used in dry non-classified indoor locations. Sheet metal boxes in outdoor locations must be of aluminum or non-corrosive stainless steel and be rated NEMA-4X, unless specified otherwise Conduit Seals Conduit seals shall be installed as required by the National Electrical Code. UL-Listed, approved drain seals shall be used where seals are required outdoors in a vertical position Cable Trays Cable trays shall be steel, ladder-type, and with 9 rung spacing. Trays shall be 12, 18, 24, or 36 with 4 or 6 high side rails, flange-out. Trays shall be NEMA Class 20C (36 tray loading of 100 pounds per linear foot, 20 feet support spacing, and 3.13 deflection) Cables/Wiring Wire and Cable shall be as follows: (Excluding Telecommunications) All power and general control wire will be type RHW-2, XHHW2. THWN2 stranded copper is only allowed in non-hazardous areas for building lighting and receptacle circuits. Interconnect Requirements.docx Page 32 Revisions / Save Date: 03/27/2017

33 Multiconductor control cable will have stranded copper conductors insulated with PVC with a PVC sheath overall. Conductors are to be sized for load and voltage drop. Thermocouple extension wire cable will be twisted pairs solid alloy conductors, 105 o C PVC primary insulation. Teflon insulation is to be used in high temperature areas. Electronic instrument wire will be a twisted pair stranded conductor, 90 o C PVC primary insulation, aluminum 100% shield with drain wire, 90 o C PVC jacket. Electronic instrument cable will be multiple twisted pairs of stranded copper conductors, 90 o C PVC jacket primary insulation, aluminum 100% overall shield, 90 o C PVC jacket Instrument Wiring In general, power for critical instruments shall be 24 VDC and shall be provided from an uninterruptible supply (i.e. batteries, charger, and inverter). No lighting fixtures, convenience outlets or other type of utility outlets shall be connected to the instrument circuits. Power for noncritical instruments may be supplied from lighting panels when instrument panels are not conveniently located Electronic Instrument Wire and Cable Analog signal or control information shall, in general, be transmitted via shielded twisted pair cables. Multi-pair cable shall have high-density polyethylene or PVC insulation over each conductor, aluminum Mylar tape and copper drain wire over the bundle and with an outer sheath of high density polyethylene or PVC. Individual cables will normally terminate on the controller while multi-conductor cable may terminate in a field junction box. Discrete control signals may be wired with individual type RHW-2 or multi-conductor cable with RHW-2 insulated conductors. All conductors shall be copper except for thermocouple extension wiring which shall be appropriate for the type of thermocouple. Conductor sizing will take into account voltage drop, vibration tolerance and tensile strength. In no case shall the conductors be less than 18 AWG for multi-conductor cable or 14 AWG for individual conductors. Multi-conductor cables may be used for electronic instrument wiring where economically feasible. Cable shall consist of suitably identified copper signal wires twisted in pairs, high density polyethylene or PVC insulation over each conductor, aluminum Mylar tape and copper drain wire over the bundle and an outer sheath of polyethylene or PVC. This cable shall be run in cable tray and/or conduit normally from field junction boxes to control panel location. Underground cables shall be run in conduits. In general, low level circuits carrying milliamp or millivolt signals shall not be installed in the same conduit with other types of circuits. The wiring for this type of circuit will be shielded, twisted pairs. In no case shall these conductors be installed with AC power or control circuits. Parallel runs, next to noise generating equipment, should be avoided. However, if parallel runs cannot be avoided, the following minimum spacing will be maintained between power cables and analog signal cables. Interconnect Requirements.docx Page 33 Revisions / Save Date: 03/27/2017

34 Power Wiring Capacity Minimum Separation 125 Volt, 10 Amp 1 foot 250 Volt, 50 Amp 1.5 feet 5 K Volt, 80 Amp 2 feet 440 Volt, 200 Amp 3 feet Thermocouple Wire and Cable In general, all single pair thermocouple extension wire shall be twisted, #16 AWG solid alloy wire installed in cable tray or conduit. Thermocouple leads shall not be installed in the same conduit or box with alternating current leads or milliampere signal wire. Thermocouple wires may only be spliced at terminals approved for the type of thermocouple wire being used. These terminations will be made in junction boxes. At all locations where the ambient temperature will not exceed 40 o C (104 o F) thermocouple extension wire shall be insulated with 105 o C extruded PVC and PVC jacket overall. 2.3 Equipment NEC ratings Classified Locations A classified location drawing shall be provided to locate classified areas as defined by the National Electrical Code and AGA document #XL1001 Classification of Gas Utility Areas for Electrical Installations. All equipment shall be approved for the location and conduit seals shall be installed as required by the National Electrical Code. UL-Listed, approved drain seals shall be used where seals are required outdoors in a vertical position. Pipeline drip fluid, produced fluids, glycol, and lube oil tank manway interiors shall be considered a Division 1 area. The release point of the hose at the truck unloading station is to be considered a Division 1 area Area Classification The design shall indicate the proper materials and equipment in locations designated as hazardous or corrosive. The degree of hazard shall be classified according to Article 500 of the NEC, API RP-500, AGA XL1001, and NFPA-497. Care shall be taken to ensure that no area, which would be classified as hazardous, is located beyond the boundaries of the Interconnect station property boundary. Fuel gas lines with pressures below 50 psig shall be permitted to be located in general purpose or non-classified locations. Any normal release of gas such as with a vent or relief valve at any pressure or volume will require classification of the area. All measurement / regulation building ventilation, piping and equipment systems are to be designed to allow interior Division 2 classification (see NEC Article 500.7(K) (1), (2) and (3)). All normal releases of gas such as with instrument vents or relief valves inside a M&R building must be piped outside. If the release point of the pipe is less distance from the wall or roof than the spherical Division 1 area defined by AGA XL1001, then caulking should be applied at seams for seamed panel metallic buildings at the Division 1 area. Such installation would require prior EQT Engineering approval. Interconnect Requirements.docx Page 34 Revisions / Save Date: 03/27/2017

35 Suitable raincaps shall be installed on all vent piping. Electrical equipment shall be located outside of Division 1 areas if possible. Equipment and materials shall be labeled, listed, certified, accepted, or otherwise determined to be suitable and safe for the environmental conditions that will be present. Where equipment is not readily available with appropriate label, it shall be so labeled by manufacturer to ascertain its acceptability. 2.4 Grounding Control devices to be installed in classified areas including push-button stations, selector switches, pilot lights, tumbler switches, and manual motor starting switches will be factory sealed type or equal and will be approved for the application. These devices must also be of the type specified or approved by the Company. Control devices to be installed in non-classified outdoor locations will be watertight, NEMA 4x as specified or approved by the Company Suitable grounding shall be installed to: Provide for the safety of personnel. Protect against static electricity. Prevent the voltage on a circuit from exceeding the voltage for which the circuit was designed. Reduce the effect of electrical interference in signal and instrumentation systems Grounding for Safety of Personnel Metallic non-current carrying parts of all major electrical equipment such as motors, generators, non- current carrying metal parts of and electrical equipment enclosures, all metal structures and equipment existing in yard, etc. shall be grounded by a connection to the grounding network or, if such equipment is isolated, to one or more grounding electrodes or other suitable means as required by the National Electrical Code. All grounding electrodes shall be interconnected to provide an integrated grounding electrode system. In general, vertical separators shall have two connections to the ground grid. Other lower elevation structures less than 50 perimeter feet in size shall have one connection to ground. For equipment between 50 and feet perimeter distance two connections shall be made. Equipment that is greater than feet perimeter distance shall have multiple grounding connections. Electrodes shall be installed at all connection points for major or isolated equipment. Where the required concrete-encased grounding electrodes are available, Ufer type grounding shall be provided in accordance with NEC Article 250. Interconnect Requirements.docx Page 35 Revisions / Save Date: 03/27/2017

36 2.4.3 Grounding for Protection Against Static Electricity Tanks and process vessels containing flammable liquids or gas shall be grounded by a connection to the ground network. In areas where flammable vapor-air mixtures may exist, electrically isolated sections of metallic piping shall be bonded to the rest of the system Grounding for Protection Against Lightning Any structure, tank or other equipment may be considered to be adequately shielded against lightning if located within a cone of protection afforded by a grounded lightning rod, wire, chimney, or other metal structure as defined in IEEE Std Lightning rods and other structures that afford a cone of protection for other equipment will be directly connected to a separate ground rod. The ground rod shall then be connected into the station ground network but this connection must be accessible for isolating the lightning system from the station ground network. In general, all services such as electric, telephone and data, which serve common equipment, shall have one common grounding electrode conductor connection to the ground grid. These services shall be grouped to enter a building together when possible. For systems below 600-volt, a properly sized type Transient Voltage Suppression System (TVSS) shall be installed at the service Grounding for Signal and Instrumentation Systems Instrumentation and signal systems design shall include grounding to reduce the effects of electrical interferences. In some cases, this equipment may require a separate ground bus with unusual low impedance. This bus must be connected to the main grounding electrode system. Instrument and signal cable shields shall be grounded at one end only, preferably at the power source end Grounding Systems The grounding system is to be designed using site soil resistivity measurements obtained before construction is started. The measurements with the design calculations are to be submitted to EQT for review. For the station s incoming electric service, magnesium or zinc anodes (or zinc coated ground rods) shall be used for the grounding electrodes. Additional to the anodes, bonds to any concrete pad rebar system shall serve as another type of grounding electrode. The service grounding system must also comply with the electric company s specifications. The conductor size for the ground grid, the branch connections, and the connections to the grounding electrodes shall be as shown on EQT standard electrical drawings. This conductor is to be insulated and bends in above grade conductors shall have a minimum radius of 8 inches. Interconnect Requirements.docx Page 36 Revisions / Save Date: 03/27/2017

37 An equipment grounding conductor shall be installed in all conduit. The conduit shall not be used as the equipment grounding conductor. The grounding conductor shall have green insulation. Grounding conductors for grounding building columns and other equipment are to be installed in the concrete walls of the building and the concrete foundation of the equipment on new construction. Metal fencing must be connected to the ground grid. The fence is to be bonded every 100 feet. Gates are to be bonded via jumpers. 3 Construction Requirements Underground joints shall be mechanically joined by UL approved methods, suitably insulated (approved splice kits) and protected. Loop conductors shall be type HMWPE insulation (green), #2/0 AWG. Branch conductors shall be type HMWPE insulation (green), #2 AWG. Ground conductors shall be installed in concrete where possibility of mechanical damage may occur to conductors. Schedule 80 PVC conduit is preferred for mechanical protection. At Interconnect facilities, the piping shall be isolated from the power company ground. To achieve the electrical equipment bonding to power company ground required by the NEC it is necessary to use piping isolators or use special equipment or mounting design. The use of piping isolators is the preferred method of isolating grounds. Temperature transmitters in particular are susceptible to failures when pipe isolators are not used. Upon completion of the work the contractor shall provide a certified test of the facility ground system using the fall-of-potential test method. The test report shall be submitted to EQT Producer Services. The facility resistance-to-ground shall not exceed 1 ohm. EQT shall be notified immediately if ground resistance exceeds 1 ohm 3.1 General - Job Site Safety and Environmental Requirements Customer or Customer s Contractor will be solely and completely responsible for conditions on the Job Site, including safety of all persons and property during performance of its construction work. This requirement will apply continuously and not be limited to normal working hours. EQT recommends the Customer or Customer s Contractor assign a designated, competent person as Safety Manager, on the Premises who can recognize and correct unsafe conditions when construction work is in progress. The Safety Manager should also be responsible for implementing, maintaining, and recording of a Site Specific Safety Plan. Customer or Customer s Contractor should equip their employees with and enforce the use of personal protection equipment, including hard hats, eye protection and steel toed shoes as a minimum. Customer or Customer s Contractor shall incorporate into its Scope of Work any and all erosion and sedimentation controls described by the drawings or as required by site specific erosion and sedimentation control plans. Interconnect Requirements.docx Page 37 Revisions / Save Date: 03/27/2017

38 3.2 Welding Customer or Customer s Contractor shall provide for all construction related permit requirements that are necessary for performing all such work. Such permit requirements may be stipulated by local, state, federal mandates. Customer will be responsible for securing required operating permits, including air permits Weld Procedures All welding must in compliance with ASME Section IX, API 1104, and ASME B31.8 as appropriate. EQT s Weld Coordinator will review Customer or Customer s Contractor weld procedures for conformance to EQT and API requirements or Welders may qualify under EQT weld procedures Weld Inspector Customer or Customer s Contractor shall provide a qualified Weld Inspector for all welding on the Interconnect facilities. The Weld Inspector is responsible for ensuring that all welding performed on EQT operated and/or maintained facilities is in accordance with DOT 192 including visual inspection to ensure the welding is performed in accordance with the welding procedure and is acceptable. The Weld Inspector shall be familiar with all of the relevant standards and should have copies of the relevant Company or EQT standards at an accessible on-site location Review of Welders Certification 3.3 Non-Destructive Tests Each welder must possess a valid, Welder Qualification card that states that the welder is qualified under API 1104, ASME Section IX, and ASME 31.8, as appropriate, on all the types of welds and procedures assigned to the welder. The card must reference the specific weld procedures that the welder is qualified to perform. It must be dated within six months of the start of construction. If there are any questions concerning welder qualifications, the Weld Inspector shall contact the EQT Weld Coordinator for assistance. When welding materials of two separate material groups, the procedure for the higher strength group shall be used and the welder shall be qualified with the procedure used. All welds shall be 100% visually inspected by the weld inspector to evaluate the quality and acceptability of every weld. All girth welds on pipe 2 and larger shall be 100% radiographically inspected by a qualified technician using API 1104 or ASME B31.8 procedures, as appropriate. A radiographer from an inspection company is required to have the Radiographic Unit Qualification, a Level II or III Radiographer Qualification as per ASNT Recommended Practice SNT-TC-1A, and the written guidelines and procedures on hand for interpretation, development, and processing of film. Fillet welds shall be inspected by the mag particle or dye penetrant methods with results reviewed and evaluated per API Weld maps and NDT results shall be submitted to EQT for review prior to commissioning the Interconnect facilities. Interconnect Requirements.docx Page 38 Revisions / Save Date: 03/27/2017

39 The Weld Inspector shall verify and obtain records that the NDT personnel are certified to a level I, II or III in accordance with SNT-TC-1A, or other program accepted by EQT. Only a level II or III may interpret testing results. For radiographic testing, the Weld Inspector shall review a random sample of film. The following should be verified: Radiographic film has the density, clarity and contrast outlined in API 1104 Section 11 Image quality free from fog and processing irregularities The proper penetrometer placement and visibility, reference API 1104 Tables 5 and Pressure Tests A film identification system (numbers, markers, or other identification accepted by the company) Prior to commissioning, all new construction shall be strength tested and the results shall be reviewed by the EQT Measurement Engineer. Strength tests include the following: All piping MUST be strength tested after welding. Minimum test duration is 8 hours after pressure / temperature stabilization and any leak discovery. Requests for test duration less than 8 hours for shop welded components must be specifically approved in writing by the EQT Design Manager. EQT shall specify the minimum and maximum test pressures. Typically, this is 1110 / 1135 psig for ANSI 300 facilities and 2220 / 2245 psig for ANSI 600 facilities. DO NOT hydro test through meters or control valve/regulators or against a closed valve. Tests shall be conducted using a calibrated precision digital or mechanical deadweight gauge and a calibrated paper or digital recording chart. Chart shall record both pressure and pipe medium temperature. Pipe / medium temperatures and pressures are to be manually recorded on a test record form every 15 minutes for the first hour and every hour for the remainder of the test. Recorded test pressure is to be read from the precision digital gauge (or deadweight). Test records forms and charts shall clearly indicate all pipe and components under test and include the following test data: facility name or ID #; pipe size(s), grade(s) and wall(s); fitting size(s), grade(s) and wall(s); flange ANSI ratings; gauge range, serial #, and last calibration date; time on and off; required pressure and actual min./max. pressure; test date; Interconnect Requirements.docx Page 39 Revisions / Save Date: 03/27/2017

40 tester s signature and witness signature. EQT shall receive the original or a clear copy of the original test chart and the manual pressure / temperature test record prior to commissioning. 3.5 Material Test Reports All materials with a nominal diameter greater than 4 must have a manufacturer s Mill / Material Test Report (MTR). MTRs must be submitted to EQT for review prior to commissioning. 3.6 Red-line and As-Built Drawings Customer shall submit red-line drawings for review at least 10 days prior to commissioning. A complete set of as-built drawings shall be submitted in both paper and electronic (AutoCAD or PDFs) format within 45 days of the turn-in-line (TIL) date of the interconnect. 4 Commissioning Requirements 4.1 Notifications Effective communication between Customer and EQT is critical to a successful turn-in line (TIL) process. The timely notification of milestone events and submission of required documentation will keep both parties informed of design, construction and commissioning progress. A 3-week notification to EQT is required prior to the completion of the meter tube fabrication, so that an in-shop inspection may be completed by EQT or its representative. A 3-week notification to EQT is required prior to the flow calibration date of the Ultrasonic Meter so that EQT, or its representative, may witness the flow calibration. Customer shall authorize the calibration lab to share any and all test and calibration results with EQT. At least 30 days prior to in-service or Turn-in-line (TIL) date Customer is responsible for submitting a Meter Add request using the online request form located at Fifteen working days prior to the Customer s expected ready to commission date (TIL date) of the Interconnect, the Customer must notify EQT Producer Services and the assigned Measurement Engineer. Ten days prior to TIL date, the Customer shall submit red-lined mechanical and electrical construction drawings. At least, 5 working days prior to the expected TIL date, an on-site pre-commissioning review must be scheduled with EQT. Three working days prior to TIL date, the Customer shall submit their estimated initial flow rate to Producer Services. At least one gas-day prior to TIL, Customer / Shipper is required to submit nominations using Company s Transaction Management system. Please contact the EQT Transportation and Exchange group with questions on nominations at Interconnect Requirements.docx Page 40 Revisions / Save Date: 03/27/2017

41 4.2 Documents Required Prior to Commissioning Prior to the on-site, pre-commissioning review, the Customer shall complete and submit to EQT Producer Services the following documentation: Commissioning Check List - page one, (see Exhibit D) along with photos of the Interconnect Station. EQT personnel will complete page two of the checklist during the on-site precommissioning review. Material / Mill Test Records (MTRs) for all gas containing pipe, valves, fittings and equipment over 4 in diameter. Strength pressure tests charts and test data forms Weld maps with x-ray results and other NDT results. A record of the visual weld inspections. Bolt torque reports Red-lined station construction drawings Meter calibration reports and micrometer sheets shall be submitted for approval immediately after they are released from the flow calibration lab or the meter tube fabrication shop. 4.3 Valve Tagging Prior to commissioning, all valves 2 diameter and larger, including control valves and regulators, shall be tagged per the EQT standard tag system with the P&ID nomenclature prior to commissioning. (see Exhibit E). 5 Exhibit Listings Exhibit A Standard Responsibility Matrices (Draft Versions) A1 A2 A3 A4 Gathering Receipt Transmission Receipt Transmission Delivery Gathering Delivery Exhibit B Standard Single Line Schematics Exhibit C Gas Chromatograph Building Example Exhibit D Interconnect Equipment Check List Exhibit E Valve Tag Sample Drawing Interconnect Requirements.docx Page 41 Revisions / Save Date: 03/27/2017

42 Exhibit A1 Example: Interconnect Requirements.docx Page 42 Revisions / Save Date: 03/27/2017