This polyline shapefile depicts category 1 streams in the County of Santa Clara, California, as well as the established distance limits for development within proximity of category 1 streams for purposes of riparian corridor protection, stability of streambeds, flood protection, erosion prevention and water and groundwater quality protection. This layer is maintained by the Santa Clara County Planning Office TeamGIS, for the benefit of the Santa Clara Valley Habitat Agency. This layer is part of a collection of GIS data for Santa Clara County, California.The Santa Clara County Planning Office is part of the Department of Planning and Development. Their primary function is to plan and regulate land use and development within the unincorporated portions of Santa Clara County. Other responsibilities include policy analysis, GIS services, research and technical assistance relating to land use, housing, environmental protection, historic preservation and demographics. The Geographic Information Services Department has taken on all those activities related to GIS data and GIS process and procedures that cross organizational boundaries. Santa Clara County encompasses 15 cities and approximately 1.7 million people. This coverage can be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data.