Mark Annis, president of ANCO Environmental Services, a Berkeley Heights, N.J., tank-testing company, said that his company sells a 275-gallon, double-walled above-ground tank that can be installed in a basement for about $1,200, not including the cost of removal or abandonment. Browse this site http://patch.com/new-york/smallbusiness/mark-annis for more information on Mark Annis Gillette. http://www.zapiks.com/mark-annis-founder-of-anco.html