Depth to groundwater is typically about . Much of the land to the west of the city (in Yolo County) is permanently reserved for a vast flood control basin (the Yolo Bypass), due to the city's historical vulnerability to floods. As a result, the contiguous urban area sprawls only west of downtown (as West Sacramento, California) but northeast and east, into the Sierra Nevada foothills, and to the south into valley farmland.
Depth to groundwater is typically about  Much of the land to the west of the city (in Yolo County) is permanently reserved for a vast flood control basin (the Yolo Bypass), due to the city's historical vulnerability to floods. As a result, the contiguous urban area sprawls only west of do,wntown (as West Sa.cramento, California) but northeast and east into the Sierra Nevada foothills, and to the south into valley farmland.