planned upon completion until 2010. Sydney's selection to host the 2000 Summer Olympics changed this. The States Sports Centre opened in 1984, and Bicentennial Park opened four years later. The Sydney International Aquatic Centre and Sydney International Athletic Centre were completed in 1994, but by 1995, it was determined by the Sydney Olympic Organising Committee that venue construction needed to be accelerated. In 1995, Bob Carr was elected as New South Wales Premier, with one of his first task was to develop a masterplan for venue construction. A plan was approved in February 1996, along with lessons learned from 1996 Summer Olympics, leading to modification of the plan in February 1997. Environmental consideration was taken during site selection and construction, including the planting of 16,000 trees around completed venues once construction was completed. Soil and water testing at Homebush Bay in the early 1990s determined that of domestic, commercial and industrial waste was located on of the land, resulting in remediation. Other items involved at the venues were the removal of electrical transmission lines, the development of rail lines near the venues, the construction of a new ferry wharf, and construction of vehicular parking sites. Fifteen new venues were under construction by 1995, with all of them being completed in 1999. Temporary venues were added for beach volleyball and women's water polo in 2000, prior to the Olympics. 40,000 people were involved in venue construction for the Games. The Olympic Stadium was constructed on the site of a cattle stockyard before they were sent to the slaughterhouse. Construction was delayed twice before commencing in earnest in September 1996. The stadium was completed in March 1999, and officially opened to the public three months later. The new Sydney Showground was built to replace the old Sydney Showground at Moore Park. The old Sydney Showground was first used in 1882 as part of the Sydney Royal Easter Show, but was starting to show its age by the 1970s. Construction of the new Showground at Homebush Bay began in October 1997, and was completed for the 1998 Royal Easter Show. The NSW Tennis Centre was constructed on a former home of the Australian Jockey Club from 1841 to 1869. The Sydney International Regatta Centre was constructed near a quarry in Penrith, a suburb of Sydney. It opened in July 1995, with competition starting eight months later. Penrith Whitewater Stadium was constructed following pleas