Frank Stecco's funeral was held Thursday morning.
Stecco was role playing in the exercise involving the dive team and a helicopter when he drowned. His body was discovered several days later.
He was a 19-year veteran of the police force.
Services were held at the Cecil D. Hylton Memorial Chapel in Woodbridge.
A memorial fund in honor of Stecco has been established. Make a donation at any Fairfax County Credit Union branch or mail donations to the Fairfax County Federal Credit Union, Frank J. Stecco Memorial Fund, P.O. Box 1300, Fairfax, VA 22038-1300.