contributed enthusiasm and funding, as well as all of the U.S. Geological Survey (USGS) water science center personnel who have worked to provide data and coordinated with the Stream-Stats national development team over the years to implement StreamStats for individual States.Thanks to what was then the Massachusetts Department of Environmental Management (MDEM), now part of the Massachusetts Department of Conservation and Recreation, and to the Massachusetts Department of Environmental Protection (MDEP), for their courage and vision to invest in the initial development of the then-unproven technology that became Massachusetts StreamStats. Thanks, in particular, to Peter Phippen, who led the effort for the MDEM, and to Arthur Screpetis, who led the effort for the MDEP. In addition, thanks to the Massachusetts Bureau of Geographic Information (MassGIS), especially Christian Jacqz, Aleda Freeman, and Philip John, for their contribution of geographic information system data and programming expertise that made Massachusetts StreamStats possible. Also, thanks to Raj Singh, then of Syncline, Inc., for assistance with web programming for Massachusetts StreamStats.