Hood River City Councilors have approved the concept of a dog park on property adjacent to the municipal wastewater treatment plant.  City Manager Steve Wheeler says the City will discuss an agreement with the Port and the Hood River Valley Parks and Recreation District to establish the park on primarily City-owned property.  The site has been discussed as a site for a dog park for some time, and Mayor Paul Blackburn says the property is not likely to be used for development.  Wheeler indicated the parks district is talking with the Port about using a small chunk of Port owned property for the park.  He adds the parks district will probably be the agency responsible for maintenance.