Only EPSG 4326 coordinates can be mapped within the open data portal
Should be represented in two columns
EPSG 4326: latitude and longitude or
EPSG 2227: x_coord and y_coord
Note: all EPSG 4326 coordinates will be loaded into the open data portal to support mapping and presented in an additional single location column there called the_geom. EPSG 2227 coordinates will be represented as the two original columns