Description: The boundaries of the 9 California Regional Water Quality Control Boards are derived from watershed boundaries in the The California Watershed Map (CALWATER version 2.2). Calwater 2.2 is a set of standardized watershed boundaries meeting standardized delineation criteria.
Service Item Id: ade5578ac3234896b56533b334b0b110
Copyright Text: California State Water Resource Control Board, Tierra Data Systems
Description: The DISTRICT feature class is a polygon coverage representing the California Department of Transportation (Caltrans) district boundaries. There are 12 Caltrans Districts in California.