Language refinement has held up another bill aimed at banning a mega-mining project proposed for the Santa Clarita Valley, an official said.

Congress went on its summer recess Friday, and Congressman Howard "Buck" McKeon is not expected to introduce a bill aimed at Cemex Inc.’s planned mine until this fall.

"They’re continuing forward with the draft they have. This is the best it’s ever looked," said Lindsey Mask, spokeswoman for McKeon, R-Santa Clarita.

McKeon is gearing up to introduce the latest and sixth incarnation of the Soledad Canyon Mining Act. The bill would keep Mexico-based cement giant Cemex Inc. from setting up a multimillion-ton sand and gravel mine in Soledad Canyon, roughly a mile from Canyon Country.

The pending bill is a revision of legislation the congressman introduced in spring 2008.