Permit fees applicable under this section are those pertaining to electrical facilities and those for water piping systems. The electrical fee shall be established by the 1975 Edition of the Uniform Electric Code, adopted as the electric code of the city of Grass Valley by Section 7-1 of Chapter 7 of this code, as the same is now established or subsequently may be amended. In the event that gas motors, rather than electric motors, are utilized for the well, the fee for the gas motor will be charged at the same rate as an electric motor of the same horsepower, as established by the provisions of the Uniform Electric Code. The water piping system fee shall be established by the 1976 Edition of the Uniform Plumbing Code, adopted as the plumbing code of the city of Grass Valley by Section 18-1 of Chapter 18 of this code, as the same is now established or subsequently may be amended. (Prior code § 23-37)