The Solano County Supervisors held a discussion on Tuesday about the Sacramento San-Joaquin Delta region and the overlapping state agencies that protect it. Dick Tzou of the Department of Resource Management said the delta covers 738,000 acres and provides three key resource areas to the region: water supply, natural resources, and cultural value. Amanda Bohl of the Delta Protection Commission explained the relationship between her current organization, the Delta Conservancy, and the Delta Stewardship Council. She said the commission covers land use, heritage and support, the conservancy handles ecosystem restoration and economic development, and the council enforces regulations and oversees scientific efforts.