Oct. 16--Environmental regulators in Michigan say Rover Pipeline recently dumped petroleum-contaminated water into a wetland during construction.
The Michigan Department of Environmental Quality issued a violation notice to Rover on Friday.
Agency staff inspected a site northwest of Ann Arbor last week after getting a complaint about a petroleum odor coming from water being discharged from the Rover site.
The petroleum likely came from groundwater contaminated by a former gas station near the construction site. The water was being discharged into a wetland next to the Portage River, according to the violation notice.
Because of the contamination, Rover needed to treat the water before discharging it and needed a discharge permit. Rover's pumping might have caused the contaminated groundwater to spread, according to the violation notice.
Michigan regulators ordered Rover to stop unauthorized water discharges and submit information for the needed permits.
Texas-based Energy Transfer is building the $4.2 billion Rover project in Ohio and Michigan.
When completed, the pipeline system will carry 3.25 billion cubic feet of natural gas a day from the Utica and Marcellus shales to users in the Great Lakes, Midwest, Gulf Coast and Canada.
A message seeking comment was left for a Rover spokeswoman.
The violation notice is the latest action state regulators have taken against Rover this year.
The Ohio Environmental Protection Agency has demanded Rover pay $2.3 million in civil penalties and restitution for several environmental violations.
The biggest incident happened in April when workers spilled 2 million gallons of diesel-tainted drilling slurry into a wetland while boring beneath the Tuscarawas River in Bethlehem Township.
Locally, Rover consists of twin 42-inch diameter mainlines that cross Carroll, Tuscarawas, Stark and Wayne counties.
The Sierra Club issued a statement saying the spills show that Energy Transfer can't be trusted and called for construction to be stopped immediately as an investigation into the company's "total failure to adequately protect our wetlands and communities is conducted."
Reach Shane at 330-580-8338 or firstname.lastname@example.org
On Twitter: @shooverREP
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