without lapse of time; without delay; instantly; at once: Please telephone him immediately. 2. with no object or space intervening. 3. closely: immediately in the vicinity.
This project will increase the level of flood protection for the urbanized area of South Sacramento County and an area to the south and east of the City of Sacramento from a 1 in 50 flood event to 1 in 100 flood event, based on 90 percent reliability.
But, i think south, central, and north california is more correct. Anything north of ventura county, la county, and the yucca valley part of san bernandino county is central to monterey, san benito, madera, fresno, and inyo county is central. Anything south of that is south, and anything north is north.