This is some kind of vole. I think this is a meadow vole based on the color and face shape. Couldn't get a shot of the tail :(
Observed approximately 1.0 meter from edge of pond, fled into reeds.
The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, and New World rats and mice. At almost 600 species, it is the second largest family of mammals, and has members throughout the New World, Asia, and Europe.