MarkWest’s Mobley Processing Plant Spills Hazardous Oil into Creek

There’s been an accidental release of a hazardous chemical at the MarkWest Energy cryogenic processing plant in Mobley (Wetzel County), WV. The spill was discovered Saturday morning by MarkWest workers. MarkWest’s Mobley plant separates natural gas from natural gas liquids (NGLs). The NGLs are sent on for further separation into their component parts at a fractionation facility. The fluid in question is DOWTHERM™ MX Heat Transfer Fluid, a chemical used as as a heat transfer fluid meant for closed-loop systems. An estimated 3,000 gallons of the fluid spilled, some of it reaching the North Fork of Fishing Creek and some of that entered the water intake for the community of Pine Grove, WV. The fluid was contained at the water plant and did not get into the public’s water supply–but just to be absolutely safe, some 360 households connected to the public water supply were cautioned to not drink or bathe in the water until further notice. MarkWest is providing bottled water to residents. Here’s what’s known so far…

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