Science Applications International Corp., Mclean, Va., is being awarded a $10,647,009 modification to a previously awarded, cost-plus-fixed-fee contract (N66001-11-C-4116) for the Deep Sea Operations Program to introduce surveillance that operates at extreme ocean depths to detect quiet submarines. The exercising of this 15-month option brings the cumulative value of this contract to an estimated $12,199,237. Work will be conducted at contractor facilities located in Arlington, Va. (27 percent); Long Beach, Miss. (27 percent); San Diego, Calif. (22 percent); Austin, Texas (17 percent); Germantown, Md. (six percent); and Melbourne, Fla. (one percent). Work is expected to be completed April 11, 2013. Contract funds will not expire at the end of the current fiscal year. The contract was competitively procured through the Defense Advanced Research Projects Agency Broad Agency Announcement number 11-24 published via the Federal Business Opportunities website, with 16 offers received. The Space and Naval Warfare Systems Center Pacific, San Diego, Calif., is the contracting activity.