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Maintenance Construction Schedule - MountainWest Overthrust Pipeline

2024 Schedule

Period	Category	Preliminary Dates	Duration	Location	Project	Possible Customer Impact	Current Capacity (Dth/d)	Restricted Capacity (Dth/d)	Anticipated Firm Cut Quantity	Anticipated Total Nomination Cut %
August	Compressor Maintenance	August 14 - 15	2	Rock Springs Compressor Station	Annual Emergency Shutdown (ESD) and Unit Maintenance	Capacity reduction to 570,000 Dth/d combined between MAP 10005, MAP 10013	MAP 10005 300,000 Dth/d, MAP 10013 825,000 Dth/d	570,000 Dth/d total. MAP 10005 to 191,800 Dth/d. MAP 10013 to 381,000 Dth/d	MAP 10005 6,500, MAP 10013 16,000	MAP 10005 32%, MAP 10013 16%

Note: This schedule is subject to change. It is recommended the Shippers monitor MountainWest Overthrust Pipeline's critical notices about schedule revisions.