At approximately 3:30 p.m. Wednesday September 19, 2007, the tug boat involved with the Lake Montclair Dredging Project tipped over and sank. No one was injured. The barge also tipped over. A small amount of diesel gasoline spilled into the lake; however, it was quickly contained and currently posses no threat to the lake or lake-users. The incident was reported to the Virginia Department of Environmental Quality.