4-9-3: PERMIT REQUIRED; EXEMPTIONS:
   A.   Permit Required: Except as otherwise provided in this chapter, it shall be unlawful for anyone to operate a mine or excavate without having first obtained a written permit from the City authorizing the same in accordance with this chapter. Mining and excavation operations that predate this chapter shall obtain a permit within six (6) months after the effective date hereof. (Prior Code § 7-7-3)
   B.   Exemptions: The following activities do not require a permit under this chapter:
      1.   Excavation for a foundation, cellar, or basement of a building if a building permit has been issued.
      2.   Grading a lot in conjunction with building if a building permit has been issued.
      3.   Excavation by the Federal, State, County or City government in connection with construction or maintenance of roads, highways, or utilities. This exemption applies only to Federal, State, County, or City government projects which have received plan and specification approval by the City as part of their plan review process.
      4.   Curb cuts, utility hookups, or street openings for which another permit has been issued by the City.
      5.   Excavation or grading for agricultural purposes.
      6.   Excavation or grading in accordance with a development contract approved under the City's subdivision ordinance. If the development contract requires that a letter of credit or other security be posted, the letter of credit or other security must be posted before any excavation takes place.
      7.   Excavations of less than five hundred (500) cubic yards in a calendar year. (Prior Code § 7-7-4)