The central business district, for purposes of this chapter, shall be defined as the area depicted on the map following this chapter and as described as follows: on the east bounded by State Street from Whatcom Creek to Maple Street, on the south Maple Street from State Street to Cornwall Street to the intersection of Chestnut and Bay Street, on the west from the intersection of Chestnut and Bay Street to Champion Street, on the southwest from Champion Street to the intersection of Cornwall and York Street, on the north from the intersection of Cornwall and York Street to Railroad and up to Whatcom Creek between Railroad and State Street.