WBI ENERGY TRANSMISSION, INC. — Integrity Assurance Notification

LATERAL RMV ALTERNATIVE TECHNOLOGYWBI Energy Transmission, Inc. (WBI) plans to construct a natural gas transmission pipeline beginning at WBI’s Mapleton Compressor Station near Mapleton, ND and will connect to a third party natural gas facility near Wahpeton, ND. This pipeline will be approximately 60 miles in length and constructed primarily of 12”, X-65, 0.250” wall thickness pipe. The pipeline will be constructed entirely in a Class 1 location. The project overview with RMV locations and AET locations is attached in Figure 1 - 2024 Wahpeton Expansion Project. There will be six rupture mitigation valves (RMV) installed. At each of the RMV valve settings, the crossover valve(s) will be locked and tagged in the closed position during normal operation as allowed per §192.634(b)(4) to be utilized as an AET. There are eight valves used as AETs that are located at the RMV valve settings. There will be two check valves used as AETs. One check valve is located on a lateral that is 4” pipe and approximately 50’ in length. The other check valve is located at the end of the line in 8” pipe. Each of the check valves will be located on the outlet of WBI measurement facilities. Each of the measurement facilities will have a bypass installed with a manual valve that is locked and tagged in the closed position during normal operations and will function as an AET as allowed per §192.634(b)(4).#