Wyoming Administrative Code
Agency 020 - Environmental Quality, Dept. of
Sub-Agency 0011 - Water Quality
Chapter 24 - Class VI Injection Wells and Facilities Underground Injection Control Program
Section 24-6 - Modifying Permits

Universal Citation: WY Code of Rules 24-6

Current through September 21, 2024

(a) The Director may modify a permit when:

(i) Any material or substantial alterations or additions to the facility occur after permitting that justify the application of different permit conditions;

(ii) Any modification in the operation of the facility is capable of causing or increasing pollution in excess of applicable standards or permit conditions;

(iii) Information warranting modification is discovered after the operation has begun that would have justified the application of different permit conditions at the time of permit issuance;

(iv) Regulations or standards upon which the permit was based changed after the permit was issued;

(v) Cause exists for termination, as described in this Section, but the Department determines that modification is appropriate;

(vi) Modification is necessary to comply with applicable statutes, standards, or regulations;

(vii) The permit is transferred; or

(viii) The Administrator determines that permit changes are necessary based on:
(A) Area of review reevaluations under Section 13(c)(i) of this Chapter;

(B) Amendments to the testing and monitoring plan under Section 20(b)(xi) of this Chapter;

(C) Amendments to the injection well-plugging plan under Section 23(c) of this Chapter;

(D) Amendments to the post-injection site care and site closure plan under Section 24(a)(iv) of this Chapter;

(E) Amendments to the emergency and remedial response plan under Section 25(a) of this Chapter;

(F) A review of monitoring or testing results; or

(G) A determination that the injectate is a hazardous waste as defined in 40 CFR § 261.3.

(b) The Administrator may make minor modifications to permits with the consent of the permittee. The Administrator shall notify the permittee of minor modifications to its permit, and the modifications shall become final twenty (20) days from the date of receipt of such notice. Minor modifications may only:

(i) Correct typographical errors;

(ii) Require more frequent monitoring or reporting by the permittee;

(iii) Change an interim compliance date in a schedule of compliance, provided the new date is not more than 120 days after the date specified in the existing permit and does not interfere with attainment of the final compliance date requirement;

(iv) Allow for a permit transfer and change in ownership or operational control of a facility where the Administrator determines that no other change in the permit is necessary, provided that a written agreement containing a specific date for transfer of permit responsibility, coverage, and liability between the current and new permittees has been submitted to the Administrator;

(v) Change quantities or types of fluids injected that are within the capacity of the facility as permitted and, in the judgment of the Administrator, would not interfere with the operation of the facility or its ability to meet conditions described in the permit and would not change its classification;

(vi) Change construction requirements approved by the Administrator pursuant to Section 9(b) (xxix)(A)-(C) of this Chapter, provided that the alteration complies with the requirements of this Chapter;

(vii) Amend a well-plugging plan that has been updated under Section 23 of this Chapter; or

(ix) Amend a Class VI injection well testing and monitoring plan, well plugging plan, post-injection site care and site closure plan, or emergency and remedial response plan where the modifications merely clarify or correct the plan.

(c) The Director may modify a permit to resolve issues that could lead to the revocation or termination of the permit under Section 7(a) of this Chapter.

(d) When the Director modifies a permit, only the conditions that are being modified shall be reopened when a new draft permit is prepared. All other aspects of the existing, unmodified permit shall remain in effect for the duration of the modified permit and the modified permit shall expire on the date when the original permit would have expired. Suitability of the facility location shall not be considered unless new information or standards indicate that a threat to human health, safety, or the environment exists that was unknown at the time of permit issuance.

(e) The Administrator may require the submission of a new application to modify a permit.

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