A construction company hired to build the Mountain Valley Pipeline worked on three similar projects that were cited by environmental regulators, who found mountainsides turned to muddy slopes and streams clogged with sediment.
The three developers of the natural gas pipelines, two in West Virginia and one in Pennsylvania, failed to comply with plans to control erosion, sediment or industrial waste, according to enforcement actions taken by state regulators.
Precision Pipeline, a Wisconsin company that is a primary contractor for Mountain Valley, played a role in the construction of the earlier projects.
