1. Division of Water Supply Protection; Massachusetts Department of Conservation and Recreation; 180 Beaman Street West Boylston MA 01583 USA
2. Division of Water Supply Protection; Massachusetts Department of Conservation and Recreation; 485 Ware Road Belchertown MA 01003 USA
3. United States Geological Survey; Massachusetts Cooperative Fish and Wildlife Research Unit; University of Massachusetts; Amherst MA 01003 USA