VANCOUVER, Wash. -

A Clark County judge has given a partial victory to the Port of Vancouver in a lawsuit over a proposed oil terminal.

The Columbian reports Superior Court Judge David Gregerson has dismissed a claim by three environmental groups.

They groups say the port violated state environmental policy by approving a lease to build an oil terminal before an environmental impact statement was issued. The judge did not agree.

The decision means the lease --worth at least $45 million over 10 years -- has been approved. The judge's ruling could be appealed, but the environmental impact study can go forward.