As part of the settlement, MarkWest will also perform three supplemental environmental projects (SEPs) and pay a $610,000 civil penalty. Under the terms of the settlement, MarkWest is expected to spend approximately $2.6 million to install and operate technologies that minimize VOC emissions at its facilities throughout eastern Ohio and western Pennsylvania in the Utica and Marcellus shale formations. MarkWest will also implement two SEPs involving the installation and operation of ambient air monitoring stations located upwind and downwind of MarkWest compressor stations in eastern Ohio and western Pennsylvania; one SEP requiring the dissemination and demonstration of a proprietary MarkWest technology for reducing VOC emissions; and one community environmental project for emissions monitoring equipment under an agreement between MarkWest and the commonwealth of Pennsylvania. The total value of the SEPs under this settlement is more than $2.4 million.