WhiteWater Midstream and MPLX LP Announce Substantial Completion of Agua Blanca Pipeline System Expansion AUSTIN, Texas--(BUSINESS WIRE)--WhiteWater Midstream (WWM) and MPLX LP (NYSE: MPLX) today announced the substantial completion of a 1.8 billion cubic-feet-per-day (Bcf|d) expansion of their joint venture Agua Blanca pipeline system. Testing and commissioning of the expansion will begin this month, and the system is anticipated to be brought into full service in early 2021. The Agua Blanca system is connected to almost 20 gas processing sites in the Delaware Basin and is currently transporting g