1. (a) General.

   1. (1) Simultaneous injection of salt water without a valid permit from the Underground Injection Control Department (UIC Department) or Commission order may result in the assessment of a fine up to $5,000 per day of operation.
   2. (2) A simultaneous injection well shall be inspected by a representative of the Commission prior to operation.

2. (b) Criteria for approval.

   1. (1) Simultaneous injection may be permitted if the following conditions are met and injection will not adversely affect offsetting production nor endanger treatable water:

      1. (A) Injection zone is located below the producing zone in the borehole.
      2. (B) Injection pressure is limited to less than the local fracture gradient.
      3. (C) A 1/4 mile plat will be required for all simultaneous injection well applications containing the information specified in OAC 165:10-5-5(b)(1)(A) and OAC 165:10-5-5(b)(1)(C). If unplugged, mud-plugged and/or a wellbore that is configured in a manner that will not prevent the potential movement of fluids from the injection/disposal zone into treatable water strata are located within the 1/4 mile radius, the operator of the proposed simultaneous injection well will be required to submit a corrective action plan in writing to the UIC Department to address such boreholes so as to protect treatable water prior to an order or permit being issued.
      4. (D) Simultaneous injectors must meet the requirements of OAC 165:10-3-4 as they apply to producing wells.
      5. (E) Class II fluids from other wells operated by the operator of a simultaneous injection well may be disposed of in such simultaneous injection well if the operator applies on Form 1015 and obtains the issuance of a new permit or order pursuant to the requirements in OAC 165:10-5-5 pertaining to authorization of noncommercial disposal wells. The filing fee specified in OAC 165:5-3-1(b)(1)(E) must accompany the Form 1015 application.

   2. (2) Required form and attachments. Each application for simultaneous injection shall be submitted to the UIC Department on Form 1015SI. The forms must be properly completed and signed. Attached to the application form shall be the following:

      1. (A) Affidavit of mailing a copy of the completed Form 1015SI to each operator of a producing lease within 1/2 mile of the subject well and owner of the surface of the land on which the proposed simultaneous injection well is to be located.
      2. (B) Schematic diagram(s) of the current and proposed wellbore showing all casing and tubing strings, top of cement for each string of casing, packers, perforations and pumps.
      3. (C) Representative open hole wire-line log for the well.

3. (D) Qualitative and quantitative analysis of fresh water from two (2) or more freshwater wells within one (1) mile of the proposed injection or disposal well showing location of wells and dates samples were taken, or statement why samples were not submitted. The analysis shall include at a minimum contact information for the lab where the samples were analyzed, chloride, sodium, specific gravity, and total dissolved solids. Sample collection date(s) must be no more than 12 months prior to the date the application is filed.

   1. (3) Monitoring, testing and reporting requirements for simultaneous injection wells.

      1. (A) Upon receiving an order or permit, the operator shall file a Form 1002A Completion Report or an amended Form 1002A Completion Report within 60 days of completion or recompletion of the well.
      2. (B) Mechanical integrity will be demonstrated by the operator performing a radioactive tracer survey on the well before the well is operated as a simultaneous injection well, and thereafter on an annual basis, reflecting that the injection fluids are going into the authorized zone(s). The radioactive tracer surveys must be submitted to the UIC Department within 7 days of the performance of the surveys, and the results of the surveys must be acceptable to the UIC Department before the well can be used as a simultaneous injection well.
      3. (C) Annual Report Form 1012 shall be submitted to the UIC Department by January 31 of each year for the previous calendar year.
   2. (4) If no protest is received within 15 days of the mailing of Form 1015SI, the application shall be submitted to the UIC Department for administrative review. If a protest is received within the protest period, the operator shall, within 30 days, set the application for hearing and give proper notice of a date for the hearing on the Pollution Docket before an Administrative Law Judge.
4. (c) Expiration of the order or permit. The simultaneous injection well order or permit shall expire on its own terms if the operator fails to perform the initial radioactive tracer survey on the well and submit the results of the survey to the UIC Department within 18 months after the effective date of the order or permit.

Added at 13 Ok Reg 2381, eff 7-1-96

Amended at 28 Ok Reg 1949, eff 7-11-11

Amended at 34 Ok Reg 921, eff 9-11-17

Amended at 35 Ok Reg 973, eff 9-14-18

Amended at 39 Ok Reg 909, eff 10-1-22

Amended at 40 Ok Reg 1747, eff 10-1-23

Amended at 42 Ok Reg, Number 20, effective 10-1-25