Construction and Maintenance Schedule 2019



Preliminary Dates



Possible Customer Impact


April   Reservoir Test April 2-10 Clay Basin Annual Withdrawal Test April 2nd, constant 275 MMcf/d withdraw rate
April 3rd, constant 325 MMcf/d withdraw rate
April 4-10, Reservoir shut-in
9 day
May   Compliance
May 7-9
Mey 7
Thistle Compressor Sta.
Vermilliion receipt point
Annual Maintenance/DOT's
Meter Cleaning
No impact to customers is expected (Depends on downstream pipeline flexibility)
No flow for 12 hours
3 days
12 hours
June No maint. Scheduled            
July   Compliance July 11 Oak SpringĀ  Annual Maintenance/DOT's ML 104 Capacity reduced to 300 Mdth/d from 492 Mdth/d 1 day
August   System Integrity August 5-9 ML23/26/27 Smart Pigging Recipt points east of JL 65 will need to be shut-in 5 days
September   System Integrity Sept. 4-5 ML 68 Pipe replacement tie-ins No flow out the Rifle area (Currently flowing are Bull Mtn and Philpot) 2 days
October   Reservoir Test October 8-16 Clay Basin Annual Injection Test Oct. 8, constant 210 MMcf/d Inj rate
Oct. 9, constant 260 MMcf/d Inj rate
Oct. 10-16, Reservoir shut-in
9 days
November No maint. Scheduled            
December No maint. Scheduled            

Note: This schedule is subject to change. It is recommended the Shippers monitor Dominion Energy Questar Pipeline, LLC's critical notices about schedule revisions.