BART has spent more than $6 million to deal with the aftermath of the videotaped shooting of unarmed train rider Oscar Grant by former Officer Johannes Mehserle, the transit agency said Wednesday.

The costs, detailed to The Chronicle in response to a public records request, are wide-ranging and give a sense of the depth of the crisis at BART brought on by the shooting Jan. 1, 2009.

BART paid Grant's 6-year-old daughter, Tatiana, $1.5 million in a civil settlement and has spent $553,000 on attorneys handling that and other civil rights lawsuits that are still pending in federal court.

Overtime and special pay for officers who investigated the killing or were assigned to try to keep the peace at protests after the incident - including some that mushroomed into vandalism and violence - have cost nearly $1.4 million, BART said.

The agency said it spent nearly $800,000 on additional training for officers, including in riot control, defensive tactics and the use of Tasers. Mehserle said he had thought he was pulling the shock weapon when he shot Grant while trying to arrest him after a fight on a train.

Another large chunk of money - just over $1 million - went to pay and cover for six officers who were with Mehserle when he shot Grant and went out on leave during investigations.

Two of the officers, Anthony Pirone and Marysol Domenici, were ultimately fired. That process has cost about $75,000.

An auditing group that recommended sweeping changes in how BART hires, trains and disciplines officers cost $135,000. An outside law firm that recommended the firings of Pirone and Domenici cost $283,000.

BART spent nearly $100,000 for riot gear and other new equipment, plus $40,000 for rented buses that the agency had on stand-by in the event that stations had to be closed and riders were stranded during protests. The buses were never used.

Other costs included added training for BART spokespeople, customer loyalty training, and instruction on "communicating with today's youth."

More than $12,000 went to trauma counselors brought in after the shooting to speak to BART employees.

Mehserle, 28, was convicted of involuntary manslaughter July 8 after a trial in Los Angeles, where the case was moved because of extensive publicity about the shooting in the Bay Area. The former officer is to be sentenced Nov. 5.

Grant's uncle, Cephus Johnson, said Wednesday that the financial impact of the shooting on BART should send a message.

"It just goes to show how important it is that BART and other police departments be much more aware of changes that need to be made," Johnson said. "They could have spent a few dollars more up front and had proper training."

BART spokesman Linton Johnson said he hoped some good would come from the agency's response.

"No amount of money is going to bring Oscar Grant back - that's stating the obvious," the spokesman said. "But what we can do is learn from a tragedy and try to improve our police services."

He could not say exactly how everyday BART train service has been affected by the lost funds. While the money is significant, he said, it pales in comparison with the loss of at least $100 million in state transit assistance to BART in recent years.