DUNDEE—DUNDEE- The New York State Department of Environmental Conservation has investigated the Dundee homeowner's "gray muck" backyard stream and says that it is a condition that can happen in the spring and is called a "mud boil." Dixon Rollins, DEC's Region 8 water manager, explained a 'mud boil' is a condition that happens in the springtime. He said it is ground-water bubbling up, bringing some earth particles with it. "It's common and may last for six to eight weeks," said Rollins. The "mud boil" in question was discovered by Darlene Schuerholz.