5.32.080: ENHANCED RECOVERY AND SALTWATER DISPOSAL WELLS; PERMITS REQUIRED:
A.   No person shall reenter any well or drill an original well to be used for enhanced recovery or disposal of saltwater or other deleterious substances without first obtaining the necessary permit therefor. Such permit shall consist of two (2) separate parts, i.e.:
   1.   Permit to drill or reenter and construct; and
   2.   Permit to operate.
B.   An application for the permit to drill and reenter a well for enhanced recovery or substance disposal shall be in the same form as that required for a permit to drill an original well, and shall contain complete information required by the oil and gas inspector, including the following:
   1.   A block map of the well site, showing all equipment to be used thereat, location of pipelines, access road, and distances from the well to any and all fences, public roadways, and buildings within a radius of three hundred thirty feet (330');
   2.   A block map of the project, showing the location of:
      a.   All water supply wells within a one-fourth (1/4) mile radius of each injection or disposal well,
      b.   All public water supply wells, disposal wells, injection wells, producing wells and plugged and abandoned wells within the project area and those sections immediately adjacent,
      c.   All conduits, and
      d.   Tank battery, pumping station and appurtenant equipment;
   3.   All wells within the project area and those sections immediately adjacent shall be indicated by status (e.g., plugged and abandoned, injection, saltwater, oil, etc.), and show the following additional information:
      a.   Footage location (surface casing),
      b.   Derrick floor and ground level elevation,
      c.   Drilled total depth,
      d.   Packer body total depth,
      e.   Size, depth and quality of surface and production casing, including zones from which casing has been removed,
      f.   Location of all plugs, packers, cement plugs, tubing anchors, etc., with the well bore,
      g.   Depth and nature of all cement squeeze jobs,
      h.   Formation name and depth of all open perforations in a producing open hole,
      i.   Volume and type of cement used on surface and production strings,
      j.   Top of cement;
   4.   One copy of all electric, mechanical, sample and driller's logs, if available;
   5.   Fee and operation name for each well;
   6.   One copy of all cement bond logs and production logs;
   7.   One copy of all work performed on the well;
   8.   Copies of all information supplied to the corporation commission, and said commission's approval of the project.
C.   Upon the completion of the application required hereunder, the oil and gas inspector shall have thirty (30) business days to review same and make a recommendation of approval or disapproval to the mayor and city council. A notice of a public hearing before the city council shall be given by publication in a legal newspaper having general circulation within the city and by mailing a notice to all owners of property within a three hundred foot (300') radius of the proposed well site. A copy of the published notice may be mailed to the owners of property in lieu of a written notice; however, the notice by publication and written notice shall take place at least ten (10) days prior to the hearing. The notice shall contain:
   1.   The street address or approximate location of the proposed well site;
   2.   The type of well proposed; and
   3.   The date, time and place of the hearing.
D.   Prior to placing any enhanced recovery or substance disposal well into service, a permit to operate such well shall be obtained from the oil and gas inspector. Every application for a permit to operate such well shall contain the following information:
   1.   Depth to static water level (hydrostatic head). Such depth shall be obtained by means of a method approved by the oil and gas inspector. Such depth shall be obtained not less than forty eight (48) hours after openings have been made through the casing into the injection disposal zone or zones.
   2.   Based on the static water level identified in subsection D1 of this section, maximum operating pressures and rates of injection shall be established and maintained so as to prevent the hydraulic pressure level at a radius to ten feet (10') from the injection or disposal wells from rising above the base elevation of treatable water. Such maximum operating pressures and injection rates shall be noted on the permit. No injection or disposal well will be permitted to operate if the well's zone of influence will exceed the above referenced limits.
E.   A fee in the sum of one thousand dollars ($1,000.00) shall be submitted along with every application for a permit to operate an injection or substance disposal well.
F.   Copies of corporation commission form no. 1015, indicating successful pressure testing of each injection well at a pressure greater than the maximum proposed for the project, or if no such form no. 1015 has been filed and approved, then sufficient evidence of the successful pressure testing of each injection well shall be filed with the oil and gas inspector.
G.   Every such injection or disposal well shall be constructed so as to seal the injection zone from the upper portion of the casing. The annulus between the injection tubing and the casing shall be filled with a noncorrosive fluid, then sealed and a one-fourth inch (1/4") female fitting with cutoff valve shall be attached so that the pressure in the annulus may be measured by the oil and gas inspector by attaching a gauge having a one-fourth inch (1/4") male fitting. A pressure shall be maintained in the annulus sufficient to monitor the fluids in the annulus. Any significant deviation from the established pressure shall be cause to shut down the well, and may result in cancellation of the operating permit, until such time as the established pressure can once again be maintained.
H.   Injection lines shall be buried in a trench of a depth no less than four feet (4'), and shall be pressure tested (static) annually at a minimum of one hundred fifty percent (150%) of the pressure normally encountered at the injection pump discharge for a period of hours to be fixed by the oil and gas inspector. Said oil and gas inspector shall be notified five (5) days in advance of such test and may supervise same. Test results shall be filed with the city upon completion.
I.   Domestic and public water supply wells located within a radius of one-fourth (1/4) mile of any enhanced recovery or disposal well shall be tested prior to beginning injection or disposal and thereafter semiannually for the presence of deleterious substances, such as chlorides, sulphates and dissolved solids. Such testing is the responsibility of the permittee and at permittee's expense, to be conducted by a person approved by the oil and gas inspector. Said oil and gas inspector shall be notified five (5) days in advance of such testing and may be present therefor. Test results shall be filed with the city upon completion. (Ord. 840 §1, 1998: Ord. 528 §1, 1982)