Mastec-built Virginia to W.Va. natural gas project, set to operate in summer, faces unclear delay as feds must reassess its water crossings in a national forest.

Virginia narrowly OKs controversial water crossing permit in a 107-mile portion of the 373-mile route also in West Virginia and North Carolina, but two federal approvals remain

Agency says the Virginia pipeline does not do enough to mitigate impacts on hundreds of stream crossings still ahead for 303-mile project, even at 92% completion.

D.C. appeals court June 22 reversal of an operating natural gas line's 2018 certification is a focus as the agency considers changes in how it decides need for interstate pipelines.