Once any well has either been completed as a producer or abandoned as a dry hole, it shall be unlawful for any person to drill such well to a deeper depth than that reached in the prior drilling operations unless the permittee as to such well obtains a supplemental permit after filing a supplemental application with the city secretary specifying the then condition of the well and the casing therein; the depth to which it is proposed such well be deepened, not to exceed in any event total depth from the surface in excess of ten thousand (10,000) feet; the proposed casing program to be used in connection with the proposed deepening operation; and evidence of adequate current tests showing that the casing strings in said well currently passed the same tests as are in this article provided for in case of the drilling of the original well. In the event the city council is satisfied that the well may be deepened with the same degree of safety as existed in the original well, a supplemental permit may be issued, without an additional fee, to the permittee authorizing the deepening and operation of the well to such specified depth as applied for, not exceeding in any event a total depth from the surface in excess of ten thousand (10,000) feet. In any deeper drilling or any deeper completion, or any deeper production operations, the permittee shall comply with all other provisions contained in this article and applicable to the drilling, completion and operation of a well.
(1964 Code, sec. 17-30)