water neutral
adj.— «Last June, Coca-Cola CEO Neville Isdell flew to Beijing and pledged that his company would become “water neutral”—every drop of water it uses to produce beverages would be returned to the earth or compensated for through conservation and recycling programs.”» —“Is the Latest Eco-Term Just Corporate Hype?” by Jeff Conant AlterNet Dec. 1, 2008. (source: Double-Tongued Dictionary)