Nearly one year ago, the collapse at the Crandall Canyon Mine near Huntington left people demanding to know what caused it and who, if anyone, might be to blame.

A Mine Safety and Health Administration report was expected to shed light on those questions Monday during a mine-safety symposium in Salt Lake City, but the release of that report has been delayed until Thursday. Richard Stickler, acting assistant secretary of labor for mine safety and health, said the agency needed extra time to have the document translated from English into Spanish for the benefit of some of the Crandall Canyon miners' families.

Stickler said Monday during an interview that MSHA certainly had a responsibility for approving the Crandall Canyon Mine plan and inspecting operations there, but that MSHA officials could only physically be there about 5 percent of the time while it was being mined.

"There's no way we can cover everything," Stickler said. But, he added, there were "obviously" some things missed that should have been caught: "We could not have been there to catch everything."

Six miners died in the original collapse last August, and their bodies were never recovered. Three rescuers died in a second collapse while trying to reach them.

Stickler said Monday that MSHA has made a commitment to not talk about results of the investigation into the Crandall Canyon collapse until victims' families have been talked to first.

Some people say mine co-owner Robert Murray, CEO of Murray Energy, is to blame for the collapse. Others include MSHA in their accusations. Murray is named in a lawsuit filed last April by the victims' families.

"MSHA's finger is in this pie, too," said Mike Dalpiaz, international vice president for the United Mine Workers of America.

The Labor Department this past spring issued a report that said MSHA was negligent leading up to the Crandall Canyon collapse. University of Utah seismologists last month said the mine collapse set off a seismic event that registered as a 3.9 magnitude shock during a 50-acre cave-in. Initially, Murray had insisted an earthquake caused the collapse.

Dalpiaz, who is based in Price, noted that MSHA had agreed to the retreat mining that was happening inside the mine at the time of the collapse. Workers in the Crandall Canyon Mine were pulling "barrier pillars," which are much larger coal-based structures intended to provide added strength to a mine ceiling that is underneath a mountain. Pulling the barriers, Dalpiaz added, is "totally taboo," although it's not against regulations.

"Everybody else leaves them in there — you just don't mess with them," Dalpiaz said.