A piece of Condon Park in Grass Valley could go to the dogs, which proponents say is good for canines, owners and non-owners alike.The proposal of a dog park in Condon Park goes before City Council tonight at 7 in City Hall, 125 E. Main St. If council members approve it in concept, it would have to come back again after the completion of environmental clearance, construction plans and other necessary preparations.The city won't be funding the project or its maintenance, said Mayor Lisa Swarthout - instead the nonprofit group Dogs Run Free propose to pick up the tab."Our only …