WBI ENERGY TRANSMISSION, INC. — Integrity Assurance Notification

LATERAL RMV ALTERNATIVE TECHNOLOGYWBI Energy is proposing to replace four sections, totaling 5.6 miles of its existing 12-inch diameter Elk Basin-Billings mainline pipeline between the Monad Station and the North Yellowstone River Valve Setting in Yellowstone County, Montana as shown on the Billings Project Overview map in Figure 1-1 Project Overview drawing (attached). It is approximately 13 miles between the North Yellowstone River Valve Setting and the Monad Station. These replacement segments include: Section 1: 0.9 mile (4,880 feet) between the Monad Station (station no. 0+00) and mainline station no. 48+80; Section 2: 2.0 miles (10,497 feet) between mainline station nos. 59+00 to 163+97; Section 3: 1.7 miles (8,707 feet) between mainline station no. 211+60 and a tie-in with the existing mainline pipeline at station no. 298+67; and Section 4 (CHS Section): 1.0 mile (5,284 feet) between the Yellowstone River Valve Setting to the Laurel Town Border Station (station nos. 1+48 to 54+32).1 The above-described replacement meets the definition of a “new or entirely replaced onshore transmission pipeline segment” and portions of the replacement fall within Class 3 and HCA locations therefore meeting the applicability of §192.634 for rupture mitigation valves (RMV) and AET.#