The utility service areas for the cities of Yakima and Sunnyside are the city limits. Selah and Union Gap currently do not have a stormwater utility. For urban Yakima County, the utility service area is the larger of either the Urban Growth Area, or the U.S. Census Bureau 2000 Census definition of “urban” based on population density. The County utility service area mirrors the extent of the regulated municipal storm sewer system defined in the Washington Department of Ecology Eastern Washington Phase II Municipal Stormwater Permit. A map of the Yakima County Stormwater Utility boundary is available online.