Discuss as:

Engineer first to face criminal charges in 2010 BP spill

Two years after the BP drilling rig exploded and triggered the largest offshore oil spill in U.S. history, some scientists and residents say they are starting to see signs of environmental damage in fish and other marine life in the Gulf Coast – which is a vital part of the local economy. Sen. Mary Landrieu, D-La., discusses.

The first criminal charges in the 2010 BP gulf spill were filed on Tuesday against a former BP engineer accused of intentionally deleting hundreds of text messages about the size of the spill.

It's clear from the court document unsealed with the case that the Justice Department's criminal investigation of the massive BP blowout includes this aspect: Did BP or its employees intentionally understate the amount of oil flowing from the well?

Kurt Mix, 50, was arrested earlier Tuesday on two charges of obstruction of justice, and then released on $100,000 bail after a federal court appearance in Houston, Texas.

"The department has filed initial charges in its investigation into the Deepwater Horizon disaster against an individual for allegedly deleting records relating to the amount of oil flowing from the Macondo well after the explosion," U.S. Attorney General Eric Holder said in a statement.


 Federal officials said more charges against others are expected.

"The Deepwater Horizon Task Force is continuing its investigation into the explosion and will hold accountable those who violated the law in connection with the largest environmental disaster in U.S. history," Holder said.

In the complaint, Mix is accused of deleting text messages on two occasions "after being repeatedly informed of his obligation to maintain such records." Most of those messages were later retrieved, the Justice Department said.

In one thread, Mix allegedly deleted a string of some 200 messages that had to do with a process dubbed "Top Kill" that was aimed at stopping the spill.

"Too much flowrate -- over 15,000" barrels of oil per day, Mix allegedly said in one text.

"At the time," the Justice Department noted, "BP’s public estimate of the flow rate was 5,000 BOPD -- three times lower than the minimum flow rate indicated in Mix’s text."

The engineer, Kurt Mix, was charged with two counts of obstruction of justice for allegedly deleting information that investigators wanted. NBC's Brian Williams reports.

Moreover, BP "continued publicly to state that Top Kill was broadly proceeding according to plan," the complaint says.

"Before Top Kill commenced," the department added, "Mix and other engineers had concluded internally that Top Kill was unlikely to succeed if the flow rate was greater than 15,000 barrels of oil per day."

If convicted, Mix, a resident of Katy, Texas, faces a maximum penalty of 20 years in prison and a fine of up to $250,000 for each of the two criminal counts against him, the Justice Department said.

BP stated that while it would not comment on the case against Mix it has "clear policies requiring preservation of evidence in this case and has undertaken substantial and ongoing efforts to preserve evidence."

The company added that it "will continue cooperating in the Department of Justice's investigation."

Ken Feinberg, former BP claims administrator, talks with MSNBC's Alex Wagner and the NOW panel about the progress that's been made in the two years following the BP oil spill.

The court document laying out the charges against Mix says that he began working with a BP team the day after the April 20, 2010, blowout. His initial estimates of the flow ranged from 64,000 barrels of oil a day to as much as 138,000.

It's clear that BP's own internal estimates were all over the place.  A little more than a week later, the document says, Mix sent his supervisors a summary of the computer modeling, which showed the flow could be as low as 1,000 barrels a day to as high as 146,000.

Lawsuits have been filed seeking financial compensation from BP, and the oil giant has reached a tentative $7.8 billion settlement with thousands of individuals and businesses.

In addition, the U.S. government is expected to seek billions of dollars in environmental fines. The final amount will depend on how much oil was determined to have spilled.

BP announced a $7.8 billion settlement in covering the economic loss and medical costs to the plaintiffs affected by the oil spill in the Gulf Coast. Dean Blanchard, owner of "Dean Blanchard Seafood," is one of those plaintiffs and shares his story of how the oil disaster changed his life.

But Tuesday's charges were the first against an individual in the blast that killed 11 workers and spilled at least 200 million gallons of crude into the Gulf of Mexico.

Mix resigned from BP a few months ago, the Justice Department stated.

More content from msnbc.com and NBC News:

Follow US News on msnbc.com on Twitter and Facebook