Selectmen on Tuesday are slated to hear the recommendations of the White's Pond Citizens' Study Committee, which has been studying whether the town should add a source to its public drinking water supply. Through 1888 state legislation, Maynard has water rights to the pond on the border between Hudson and Stow, and used it as a water source until the early 1990s, said Town Administrator Michael Sullivan. Health and maintenance concerns related to an aging delivery pipe led the town to abandon the pond in favor of wells. The study committee estimates it would cost about $15 million to revive the pond as a water source. “I think the premise of having more sources makes a lot of sense, but the cost associated would impact water rates,” Sullivan said.