17.60.030 Established.
   There are established oil combining zones designated as "O" and "O1" which, when shown on the zoning map of the city in combination with a basic symbol such as R-1, C-2 and M-1, shall cause the property so designated to be subject to the code provisions relating to such basic district and the provisions set forth in this chapter.
(`78 Code, § 17.60.030.)