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Principal attributes include:CITY_NAME: represents the city's name.CITY_TYPE: may be used for definition queries; \"Unincorporated\" or \"City\".FEAT_TYPE: contains the type of feature each polygon represents:Land - Use this value for your definition query if you want to see only land features on your map.Pier - One example is the Santa Monica Pier. Man-made features may be regarded as extensions of the coastline.Breakwater - Examples include the breakwater barriers that protect the Los Angeles Harbor.Water - Polygons with this attribute value represent internal navigable waters. Examples of internal waters are found in the Long Beach Harbor and in Marina del Rey.3NM Buffer - Per the Submerged Lands Act, the seaward boundaries of coastal cities and unincorporated county areas are three nautical miles (a nautical mile is 1852 meters) from the coastline.This product is for information purposes and should not be used for legal, engineering, or survey purposes. 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The CIO and the LA County Enterprise GIS group worked with the Los Angeles County Board of Supervisors Unincorporated Area and Field Deputies to establish names that reflect as best as possible the general name preferences of residents and historical names of areas. A Board Motion established these area names as \u201cBoard Approved.\u201d CSAs differ from the more informal \u201cCommunity\u201d geographies because:They are primarily focused on broad statistics and reporting, not mapping of communities.They represent board approved geographies comprised of Census block groups split by cities.They must cover the entire unincorporated CountyThere can be no holes or overlapping areasThe CSAs originally were created using Census Block Groups split by cities (e.g., \"Split Block Groups\") as a geographic building block. These boundaries are subsequently updated as needed based on city's annexation/deannexation records. In the City of Los Angeles, the LA City Neighborhood file was overlaid on the Block Groups and boundaries assigned using the centroid of the block group - therefore, while the names of the CSAs in LA City match the neighborhood file, the boundaries are not the same.Additionally, CSAs are to be named according to the following recommended naming conventions:All names will be assumed to begin with \u201cUnincorporated\u201d (e.g., Unincorporated El Camino Village) for the unincorporated areas. They will not be part of the Statistical Geography Name (so the name of the Statistical Area would be \u201cEl Camino Village\u201d).Names will not contain \u201cIsland\u201d \u2013 beginning each name with \u201cUnincorporated\u201d will distinguish an area from any surrounding cities. 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