Depending upon the conditions, either nucleation or growth may be predominant over the other, and as a result, crystals with different sizes and shapes are obtained (Control of crystal size and shape constitutes one of the main challenges in industrial manufacturing, such as for pharmaceuticals).
For the region, see San Fernando Valley. San Fernando is a city located in the San Fernando Valley, in the northwestern region of Los Angeles County, California. It is completely surrounded by the City of Los Angeles.
Zone 7 Water Agency is located in the Tri-Valley region of the eastern San Francisco Bay Area. It provides water on a wholesale basis to the cities of Pleasanton, Livermore, Dublin and the Dougherty Valley area of San Ramon, and flood-protection services to all of eastern Alameda County.