After years of wait, veterans who had been exposed to contaminated drinking water while assigned to Camp Lejeune in North Carolina may now be able to receive a portion of government disability benefits totaling more than $2 billion. Beginning in March, the cash payouts from the Department of Veterans Affairs may supplement VA health care already being provided to eligible veterans stationed at the Marine base for at least 30 days cumulative between Aug. 1, 1953, and Dec. 31, 1987.