1. (a) Class 1 modifications.

2. (1) Except as provided in Subsection R315-270-42(a)(2), the permittee may put into effect Class 1 modifications listed in Appendix I of Section R315-270-42 under the following conditions:

   1. (i) The permittee shall notify the Director concerning the modification by certified mail or other means that establish proof of delivery within 7 calendar days after the change is put into effect. This notice shall specify the changes being made to permit conditions or supporting documents referenced by the permit and shall explain why they are necessary. Along with the notice, the permittee shall provide the applicable information required by Sections R315-270-13 through R315-270-21, R315-270-62, and R315-270-63.

      1. (ii) The permittee shall send a notice of the modification to each person on the facility mailing list, maintained by the Director in accordance with Subsection R315-124-10(c)(1)(ix), and the appropriate units of State and local government, as specified in Subsection R315-124-10(c)(1)(x). This notification shall be made within 90 calendar days after the change is put into effect. For the Class I modifications that require prior Director approval, the notification shall be made within 90 calendar days after the Director approves the request.
      2. (iii) Any person may request the Director to review, and the Director may for cause reject, any Class 1 modification. The Director shall inform the permittee by certified mail that a Class 1 modification has been rejected, explaining the reasons for the rejection. If a Class 1 modification has been rejected, the permittee shall comply with the original permit conditions.
3. (2) Class 1 permit modifications identified in Appendix I by an asterisk may be made only with the prior written approval of the Director.

4. (3) For a Class 1 permit modification, the permittee may elect to follow the procedures in Subsection R315-270-42(b) for Class 2 modifications instead of the Class 1 procedures. The permittee shall inform the Director of this decision in the notice required in Subsection R315-270-42(b)(1).

   1. (b) Class 2 modifications.

5. (1) For Class 2 modifications, listed in Appendix I of Section R315-270-42, the permittee shall submit a modification request to the Director that:

   1. (i) Describes the exact change to be made to the permit conditions and supporting documents referenced by the permit;

      1. (ii) Identifies that the modification is a Class 2 modification;
      2. (iii) Explains why the modification is needed; and
      3. (iv) Provides the applicable information required by Sections R315-270-13 through R315-270-21, R315-270-62, and R315-270-63.

6. (2) The permittee shall send a notice of the modification request to each person on the facility mailing list maintained by the Director and to the appropriate units of State and local government as specified in Subsections R315-124-10(c)(1)(ix) and R315-124-10(c)(1)(x) and shall publish this notice in a major local newspaper of general circulation. This notice shall be mailed and published within 7 days before or after the date of submission of the modification request, and the permittee shall provide to the Director evidence of the mailing and publication. The notice shall include:

   1. (i) Announcement of a 60-day comment period, in accordance with Subsection R315-270-42(b)(5), and the name and address of an Agency contact to whom comments shall be sent;

      1. (ii) Announcement of the date, time, and place for a public meeting held in accordance with Subsection R315-270-42(b)(4);
      2. (iii) Name and telephone number of the permittee's contact person;
      3. (iv) Name and telephone number of an Agency contact person;
      4. (v) Location where copies of the modification request and any supporting documents can be viewed and copied; and
      5. (vi) The following statement: "The permittee's compliance history during the life of the permit being modified is available from the Agency contact person."
7. (3) The permittee shall place a copy of the permit modification request and supporting documents in a location accessible to the public in the vicinity of the permitted facility.
8. (4) The permittee shall hold a public meeting no earlier than 15 days after the publication of the notice required in Subsection R315-270-42(b)(2) and no later than 15 days before the close of the 60-day comment period. The meeting shall be held to the extent practicable in the vicinity of the permitted facility.
9. (5) The public shall be provided 60 days to comment on the modification request. The comment period shall begin on the date the permittee publishes the notice in the local newspaper. Comments should be submitted to the Division contact identified in the public notice.

10. (6)(i) No later than 90 days after receipt of the notification request, the Director shall:

    1. (A) Approve the modification request, with or without changes, and modify the permit accordingly;
    2. (B) Deny the request;
    3. (C) Determine that the modification request shall follow the procedures in Subsection R315-270-42(c) for Class 3 modifications for the following reasons:
11. (1) There is significant public concern about the proposed modification; or

12. (2) The complex nature of the change requires the more extensive procedures of Class 3.

    1. (D) Approve the request, with or without changes, as a temporary authorization having a term of up to 180 days; or
    2. (E) Notify the permittee that the Director will decide on the request within the next 30 days.

    3. (ii) If the Director notifies the permittee of a 30-day extension for a decision, the Director shall, no later than 120 days after receipt of the modification request:

       1. (A) Approve the modification request, with or without changes, and modify the permit accordingly;
       2. (B) Deny the request;
       3. (C) Determine that the modification request shall follow the procedures in Subsection R315-270-42(c) for Class 3 modifications for the following reasons:
13. (1) There is significant public concern about the proposed modification; or

14. (2) The complex nature of the change requires the more extensive procedures of Class 3; or

    1. (D) Approve the request, with or without changes, as a temporary authorization having a term of up to 180 days.
    2. (iii) If the Director fails to make one of the decisions specified in Subsection R315-270-42(b)(6)(ii) by the 120th day after receipt of the modification request, the permittee is automatically authorized to conduct the activities described in the modification request for up to 180 days, without formal action by the Director. The authorized activities shall be conducted as described in the permit modification request and shall be in compliance with appropriate standards of Rule R315-265. If the Director approves, with or without changes, or denies the modification request during the term of the temporary or automatic authorization provided for in Subsection R315-270-42(b)(6)(i), R315-270-42(b)(6)(ii), or R315-270-42(b)(6)(iii), this action cancels the temporary or automatic authorization.
    3. (iv)(A) In the case of an automatic authorization under Subsection R315-270-42(b)(6)(iii), or a temporary authorization under Subsections R315-270-42(b)(6)(i)(D) or R315-270-42(b)(6)(ii)(D), if the Director has not made a final approval or denial of the modification request by the date 50 days prior to the end of the temporary or automatic authorization, the permittee shall within seven days of that time send a notification to persons on the facility mailing list, and make a reasonable effort to notify other persons who submitted written comments on the modification request, that:
15. (1) The permittee has been authorized temporarily to conduct the activities described in the permit modification request; and

16. (2) Unless the Director acts to give final approval or denial of the request by the end of the authorization period, the permittee shall receive authorization to conduct the activities for the life of the permit.

    1. (B) If the owner/operator fails to notify the public by the date specified in Subsection R315-270-42(b)(6)(iv)(A), the effective date of the permanent authorization shall be deferred until 50 days after the owner/operator notifies the public.

    2. (v) Except as provided in Subsection R315-270-42(b)(6)(vii), if the Director does not finally approve or deny a modification request before the end of the automatic or temporary authorization period or reclassify the modification as a Class 3, the permittee is authorized to conduct the activities described in the permit modification request for the life of the permit unless modified later under Section R315-270-41 or R315-270-42. The activities authorized under Subsection R315-270-42(b) shall be conducted as described in the permit modification request and shall be in compliance with appropriate standards of Rule R315-265.

       1. (vi) In making a decision to approve or deny a modification request, including a decision to issue a temporary authorization or to reclassify a modification as a Class 3, the Director shall consider each written comment submitted during the public comment period and shall respond in writing to each significant comment in the Director's decision.
       2. (vii) With the written consent of the permittee, the Director may extend indefinitely or for a specified period the time periods for final approval or denial of a modification request or for reclassifying a modification as a Class 3.

17. (7) The Director may deny or change the terms of a Class 2 permit modification request under Subsections R315-270-42(b)(6)(i) through R315-270-42(b)(6)(iii) for the following reasons:

    1. (i) The modification request is incomplete;

       1. (ii) The requested modification does not comply with the appropriate requirements of Rule R315-264 or other applicable requirements; or
       2. (iii) The conditions of the modification fail to protect human health and the environment.

18. (8) The permittee may perform any construction associated with a Class 2 permit modification request beginning 60 days after the submission of the request unless the Director establishes a later date for commencing construction and informs the permittee in writing before day 60.

    1. (c) Class 3 modifications.

19. (1) For Class 3 modifications listed in Appendix I of Section R315-270-42, the permittee shall submit a modification request to the Director that:

    1. (i) Describes the exact change to be made to the permit conditions and supporting documents referenced by the permit;

       1. (ii) Identifies that the modification is a Class 3 modification;
       2. (iii) Explains why the modification is needed; and
       3. (iv) Provides the applicable information required by Sections R315-270-13 through R315-270-22, R315-270-62, R315-270-63, and R315-270-66.

20. (2) The permittee shall send a notice of the modification request to each person on the facility mailing list maintained by the Director and to the appropriate units of State and local government as specified in Subsections R315-124-10(c)(1)(ix) and R315-124-10(c)(1)(x) and shall publish this notice in a major local newspaper of general circulation. This notice shall be mailed and published within seven days before or after the date of submission of the modification request, and the permittee shall provide to the Director evidence of the mailing and publication. The notice shall include:

    1. (i) Announcement of a 60-day comment period, and a name and address of the Director to whom comments shall be sent;

       1. (ii) Announcement of the date, time, and place for a public meeting on the modification request, in accordance with Subsection R315-270-42(c)(4);
       2. (iii) Name and telephone number of the permittee's contact person;
       3. (iv) Name and telephone number of a Division contact person;
       4. (v) Location where copies of the modification request and any supporting documents can be viewed and copied; and
       5. (vi) The following statement: "The permittee's compliance history during the life of the permit being modified is available from the Division's contact person."
21. (3) The permittee shall place a copy of the permit modification request and supporting documents in a location accessible to the public in the vicinity of the permitted facility.
22. (4) The permittee shall hold a public meeting no earlier than 15 days after the publication of the notice required in Subsection R315-270-42(c)(2) and no later than 15 days before the close of the 60-day comment period. The meeting shall be held to the extent practicable in the vicinity of the permitted facility.
23. (5) The public shall be provided at least 60 days to comment on the modification request. The comment period shall begin on the date the permittee publishes the notice in the local newspaper. Comments should be submitted to the Director.

24. (6) After the conclusion of the 60-day comment period, the Director shall grant or deny the permit modification request according to the permit modification procedures of Rule R315-124. In addition, the Director shall consider and respond to each significant written comment received during the 60-day comment period.

    1. (d) Other modifications.
25. (1) In the case of modifications not explicitly listed in Appendix I of Section R315-270-42, the permittee may submit a Class 3 modification request to the Director, or the permittee may request a determination by the Director that the modification should be reviewed and approved as a Class 1 or Class 2 modification. If the permittee requests that the modification be classified as a Class 1 or 2 modification, the permittee shall provide the Director with the necessary information to support the requested classification.

26. (2) The Director shall make the determination described in Subsection R315-270-42(d)(1) as promptly as practicable. In determining the appropriate class for a specific modification, the Director shall consider the similarity of the modification to other modifications codified in Appendix I and the following criteria:

    1. (i) Class 1 modifications apply to minor changes that keep the permit current with routine changes to the facility or its operation. These changes do not substantially alter the permit conditions or reduce the capacity of the facility to protect human health or the environment. In the case of Class 1 modifications, the Director may require prior approval.

       1. (ii) Class 2 modifications apply to changes that are necessary to enable a permittee to respond, in a timely manner, to:

          1. (A) Common variations in the types and quantities of the wastes managed under the facility permit;
          2. (B) Technological advancements; and
          3. (C) Changes necessary to comply with new rules, where these changes can be implemented without substantially changing design specifications or management practices in the permit.
       2. (iii) Class 3 modifications substantially alter the facility or its operation.
    2. (e) Temporary authorizations.
27. (1) Upon request of the permittee, the Director may, without prior public notice and comment, grant the permittee a temporary authorization in accordance with Subsection R315-270-42(e). Temporary authorizations shall have a term of not more than 180 days.

28. (2)(i) The permittee may request a temporary authorization for:

    1. (A) Any Class 2 modification meeting the criteria in Subsection R315-270-42(e)(3)(ii); and
    2. (B) Any Class 3 modification that meets the criteria in Subsection R315-270-42(e)(3)(ii)(A) or R315-270-42(e)(3)(ii)(B); or that meets the criteria in Subsections R315-270-42(e)(3)(ii)(C) through R315-270-42(e)(3)(ii)(E) and provides improved management or treatment of a hazardous waste already listed in the facility permit.

    3. (ii) The temporary authorization request shall include:

       1. (A) A description of the activities to be conducted under the temporary authorization;
       2. (B) An explanation of why the temporary authorization is necessary; and
       3. (C) Sufficient information to ensure compliance with Rule R315-264 standards.
    4. (iii) The permittee shall send a notice about the temporary authorization request to each person on the facility mailing list maintained by the Director and to appropriate units of State and local governments as specified in Subsections R315-124-10(c)(1)(ix) and R315-124-10(c)(1)(x). This notification shall be made within seven days of submission of the authorization request.

29. (3) The Director shall approve or deny the temporary authorization as quickly as practical. To issue a temporary authorization, the Director shall find:

    1. (i) The authorized activities are in compliance with the standards of Rule R315-264; and

       1. (ii) The temporary authorization is necessary to achieve one of the following objectives before action is likely to be taken on a modification request:

          1. (A) To facilitate timely implementation of closure or corrective action activities;
          2. (B) To allow treatment or storage in tanks or containers, or in containment buildings in accordance with Rule R315-268;
          3. (C) To prevent disruption of ongoing waste management activities;
          4. (D) To enable the permittee to respond to sudden changes in the types or quantities of the wastes managed under the facility permit; or
          5. (E) To facilitate other changes to protect human health and the environment.

30. (4) A temporary authorization may be reissued for one additional term of up to 180 days provided that the permittee has requested a Class 2 or 3 permit modification for the activity covered in the temporary authorization, and:

    1. (i) The reissued temporary authorization constitutes the Director's decision on a Class 2 permit modification in accordance with Subsection R315-270-42(b)(6)(i)(D) or R315-270-42(b)(6)(ii)(D); or

       1. (ii) The Director determines that the reissued temporary authorization involving a Class 3 permit modification request is warranted to allow the authorized activities to continue while the modification procedures of Subsection R315-270-42(c) are conducted.
    2. (f) Public notice and appeals of permit modification decisions.
31. (1) The Director shall notify persons on the facility mailing list and appropriate units of State and local government within 10 days of any decision under Section R315-270-42 to grant or deny a Class 2 or 3 permit modification request. The Director shall also notify those persons within 10 days after an automatic authorization for a Class 2 modification goes into effect under Subsection R315-270-42(b)(6)(iii) or R315-270-42(b)(6)(v).
32. (2) The Director's decision to grant or deny a Class 2 or 3 permit modification request under Section R315-270-42 may be appealed under the permit appeal procedures of Section R315-124-19.

33. (3) An automatic authorization that goes into effect under Subsection R315-270-42(b)(6)(iii) or R315-270-42(b)(6)(v) may be appealed under the permit appeal procedures of Section R315-124-19; however, the permittee may continue to conduct the activities pursuant to the automatic authorization unless and until a final determination is made.

    1. (g) Newly regulated wastes and units.

34. (1) The permittee is authorized to continue to manage wastes listed or identified as hazardous under Rule R315-261, or to continue to manage hazardous waste in units newly regulated as hazardous waste management units, if:

    1. (i) The unit was in existence as a hazardous waste facility with respect to the newly listed or characterized waste or newly regulated waste management unit on the effective date of the final rule listing or identifying the waste, or regulating the unit;

       1. (ii) The permittee submits a Class 1 modification request on or before the date on which the waste or unit becomes subject to the new requirements;
       2. (iii) The permittee is in compliance with the applicable standards of Rules R315-265 and R315-266;
       3. (iv) The permittee also submits a complete Class 2 or 3 modification request within 180 days of the effective date of the rule listing or identifying the waste, or subjecting the unit to hazardous waste management standards; and
       4. (v) In the case of land disposal units, the permittee certifies that each unit is in compliance with applicable requirements of Rule R315-265 for groundwater monitoring and financial responsibility on the date 12 months after the effective date of the rule identifying or listing the waste as hazardous, or regulating the unit as a hazardous waste management unit. If the owner or operator fails to certify compliance with each of these requirements, the permittee shall lose authority to operate under Section R315-270-42.

35. (2) New wastes or units added to a facility's permit under Subsection R315-270-42(g) do not constitute expansions for the purpose of the 25 percent capacity expansion limit for Class 2 modifications.

    1. (h) Reserved.

       1. (i) Permit modification list. The Director shall maintain a list of each approved permit modification and shall publish a notice once a year in a State-wide newspaper that an updated list is available for review.
    2. (j) Combustion facility changes to meet 40 CFR 63 MACT standards. The following procedures apply to hazardous waste combustion facility permit modifications requested under Appendix I of Section R315-270-42, section L(9).
36. (1) Facility owners or operators shall have complied with the Notification of Intent to Comply (NIC) requirements of 40 CFR 63.1210 that were in effect prior to October 11, 2000, see 40 CFR part 63 Section 63.1200-63.1499 revised as of July 1, 2000, in order to request a permit modification under Section R315-270-42 for the purpose of technology changes needed to meet the standards under 40 CFR 63.1203, 63.1204, and 63.1205.
37. (2) Facility owners or operators shall comply with the Notification of Intent to Comply (NIC) requirements of 40 CFR 63.1210(b) and 63.1212(a) before a permit modification can be requested under Section R315-270-42 for the purpose of technology changes needed to meet the 40 CFR 63.1215, 63.1216, 63.1217, 63.1218, 63.1219, 63.1220, and 63.1221 standards promulgated on October 12, 2005.

38. (3) If the Director does not approve or deny the request within 90 days of receiving it, the request shall be deemed approved. The Director may, at the Director's discretion, extend this 90 day deadline one time for up to 30 days by notifying the facility owner or operator.

    1. (k) Waiver of permit conditions in support of transition to the 40 CFR 63 MACT standards.

39. (1) the permittee may request to have specific operating and emissions limits waived by submitting a Class 1 permit modification request under Appendix I of Section R315-270-42, section L(10). The permittee shall:

    1. (i) Identify the specific RCRA permit operating and emissions limits that the permittee is requesting to waive;

       1. (ii) Provide an explanation of why the changes are necessary in order to minimize or eliminate conflicts between the hazardous waste permit and MACT compliance; and
       2. (iii) Discuss how the revised provisions will be sufficiently protective.
       3. (iv) The Director shall approve or deny the request within 30 days of receipt of the request. The Director may, at the Director's discretion, extend this 30 day deadline one time for up to 30 days by notifying the facility owner or operator.

40. (2) To request this modification in conjunction with MACT performance testing where permit limits may only be waived during actual test events and pretesting, as defined under 40 CFR 63.1207(h)(2)(i) and (ii), for an aggregate time not to exceed 720 hours of operation, renewable at the discretion of the Director, the permittee shall:

    1. (i) Submit a modification request to the Director at the time test plans are submitted to the Director; and

       1. (ii) The Director may elect to approve or deny the request continent upon approval of the test plans.

          Table

          Appendix I to Section R315-270-42 -- Classification of Permit

          Modification

          Modifications Class

41. A. General Permit Provisions

    1. 1. Administrative and informational changes 1
    2. 2. Correction of typographical errors 1

    3. 3. Equipment replacement or upgrading with 1

       functionally equivalent components, such as pipes,

       valves, pumps, conveyors, controls

    4. 4. Changes in the frequency of or procedures for

       1. a. To provide for more frequent monitoring, 1

          reporting, sampling, or maintenance

       2. b. Other changes, 2

       monitoring, reporting, sampling, or maintenance

       activities by the permittee:

    5. 5. Schedule of compliance:

       1. a. Changes in interim compliance dates,

          with prior approval of the Director 11

       2. b. Extension of final compliance date 3

    6. 6. Changes in expiration date of permit to allow 11

       earlier permit termination, with prior approval

       of the Director

    7. 7. Changes in ownership or operational control of a 11

       facility, provided the procedures of Subsection

       R315-270-40(b) are followed

    8. 8. Changes to remove permit conditions that are no 11

       longer applicable, i.e., because the standards

       upon which they are based are no longer

       applicable to the facility.

    9. 9. Changes to remove permit conditions applicable 11

       to a unit excluded under Section R315-261-4.

    10. 10. Changes in the expiration date of a permit 11

        issued to a facility at which each unit is

        excluded under Section R315-261-4.

42. B. General Facility Standards

    1. 1. Changes to waste sampling or analysis methods

       1. a. To conform with agency guidance or rules 1

       2. b. To incorporate changes associated with F039, 1

          multi-source leachate, sampling or analysis

          methods

       3. c. To incorporate changes associated with 11

          underlying hazardous constituents in

          ignitable or corrosive wastes

       4. d. Other changes 2

    2. 2. Changes to analytical quality assurance/control

       1. a. To conform with agency guidance or rules 1
       2. b. Other changes 2

       plan:

    3. 3. Changes in procedures for maintaining the 1

       operating record

    4. 4. Changes in frequency or content of inspection 2

       schedules

    5. 5. Changes in the training plan:

       1. a. That affect the type or decrease the amount of 2

          training given to employees

       2. b. Other changes 1

    6. 6. Contingency plan:

       1. a. Changes in emergency procedures, i.e., spill 2

          or release response procedures

       2. b. Replacement with functionally equivalent 1

          equipment, upgrade, or relocate emergency

          equipment listed

       3. c. Removal of equipment from emergency equipment 2

          list

       4. d. Changes in name, address, or phone number of 1

          coordinators or other persons or agencies

          identified in the plan

    7. 7. Construction quality assurance plan:

       1. a. Changes that the CQA officer certifies in the 1

          operating record will provide equivalent or

          better certainty that the unit components meet

          the design specifications

       2. b. Other changes 2

          Note: If a permit modification, such as introduction of

          a new unit, requires a change in facility plans or other

          general facility standards, that change shall be reviewed

          under the procedures of the permit modification.

43. C. Ground-Water Protection

    1. 1. Changes to wells:

       1. a. Changes in the number, location, depth, or 2

          design of upgradient or downgradient wells of

          permitted ground-water monitoring system

       2. b. Replacement of an existing well that has been 1

          damaged or rendered inoperable, without change

          to location, design, or depth of the well

    2. 2. Changes in ground-water sampling or analysis 11

       procedures or monitoring schedule, with prior

       approval of the Director

    3. 3. Changes in statistical procedure for determining 11

       whether a statistically significant change in

       ground-water quality between upgradient and

       downgradient wells has occurred, with prior

       approval of the Director

    4. 4. Changes in point of compliance 2

    5. 5. Changes in indicator parameters, hazardous

       1. a. As specified in the groundwater protection 3

          standard

       2. b. As specified in the detection monitoring 2

          program

       constituents, or concentration limits, including

       ACLs:

    6. 6. Changes to a detection monitoring program as 2

       required by Subsection R315-264-98(h), unless

       otherwise specified in this appendix

    7. 7. Compliance monitoring program:

       1. a. Addition of compliance monitoring program as 3

          required by Sections R315-264-98(g)(4) and

          R315-264-99

       2. b. Changes to a compliance monitoring program as 2

          required by Subsection R315-264-99(j),

          unless otherwise specified in this appendix

    8. 8. Corrective action program:

       1. a. Addition of a corrective action program as 3

          required by Subsection R315-264-99(h)(2)

          and Section R315-264-100

       2. b. Changes to a corrective action program as 2

          required by Subsection R315-264-100(h), unless

          otherwise

          specified in this appendix

44. D. Closure

    1. 1. Changes to the closure plan:

       1. a. Changes in estimate of maximum extent of 11

          operations or maximum inventory of waste

          on-site at any time during the active life

          of the facility, with prior approval of the

          Director

       2. b. Changes in the closure schedule for any unit, 11

          changes in the final closure schedule for

          the facility, or extension of the closure

          period, with prior approval of the Director

       3. c. Changes in the expected year of final 11

          closure, where other permit conditions are

          not changed, with prior approval of the

          Director

       4. d. Changes in procedures for decontamination of 11

          facility equipment or structures, with prior

          approval of the Director

       5. e. Changes in approved closure plan resulting 2

          from unexpected events occurring during

          partial or final closure, unless otherwise

          specified in this appendix

       6. f. Extension of the closure period to allow a 2

          landfill, surface impoundment or land

          treatment unit to receive non-hazardous

          wastes after final receipt of hazardous

          wastes under Subsections R315-264-113(d)

          and R315-264-113(e)

    2. 2. Creation of a new landfill unit as part of 3

       closure

    3. 3. Addition of the following new units to be used

       1. a. Surface impoundments 3
       2. b. Incinerators 3

       3. c. Waste piles that do not comply with 3

          Subsection R315-264-250(c)

       4. d. Waste piles that comply with Subsection 2

          R315-264-250(c)

       5. e. Tanks or containers, other than specified 2

          below

       6. f. Tanks used for neutralization, dewatering, 11

          phase separation, or component separation,

          with prior approval of the Director

       7. g. Staging piles 2

       temporarily for closure activities:

45. E. Post-Closure

    1. 1. Changes in name, address, or phone number of 1

       contact in post-closure plan

    2. 2. Extension of post-closure care period 2
    3. 3. Reduction in the post-closure care period 3

    4. 4. Changes to the expected year of final closure, 1

       where other permit conditions are not changed

    5. 5. Changes in post-closure plan necessitated by 2

       events occurring during the active life of the

       facility, including partial and final closure

46. F. Containers

    1. 1. Modification or addition of container units:

       1. a. Resulting in greater than 25% increase in 3

          the facility's container storage capacity,

          except as provided in F(1)(c) and F(4)(a)

          below

       2. b. Resulting in up to 25% increase in the 2

          facility's container storage capacity,

          except as provided in F(1)(c) and F(4)(a)

          below

       3. c. Or treatment processes necessary to treat 11

          wastes that are restricted from land

          disposal to meet any of the

          applicable treatment standards or to treat

          wastes to satisfy (in whole or in part) the

          standard of "use of practically available

          technology that yields the greatest

          environmental benefit" contained in

          Subsection R315-268-8(a)(2)(ii), with prior

          approval of the Director. This modification

          may also involve addition of new waste codes

          or narrative descriptions of wastes. It is

          not applicable to dioxin-containing wastes,

          F020, 021, 022, 023, 026, 027, and 028

    2. 2.

       1. a. Modification of a container unit without 2

          increasing the capacity of the unit

       2. b. Addition of a roof to a container unit 1

          without alteration of the containment system

    3. 3. Storage of different wastes in containers,

       1. a. That require additional or different 3

          management practices from those authorized

          in the permit

       2. b. That do not require additional or different 2

          management practices from those authorized

          in the permit

          Note: See Subsection R315-270-42(g) for modification

          procedures to be used for the management of newly

          listed or identified wastes.

       except as provided in (F)(4) below:

    4. 4. Storage or treatment of different wastes in

       1. a. That require addition of units or change in 11

          treatment process or management standards,

          provided that the wastes are restricted

          from land disposal and are to be treated

          to meet any of the applicable

          treatment standards, or that are to be

          treated to satisfy, in whole or in part,

          the standard of "use of practically

          available technology that yields the

          greatest environmental benefit." This

          modification is not applicable to

          dioxin-containing wastes, F020, 021, 022,

          023, 026, 027, and 028)

       2. b. That do not require the addition of units 11

          or a change in the treatment process or

          management standards, and provided that the

          units have previously received wastes of

          the same type, such as incinerator scrubber

          water. This modification is not applicable

          to dioxin-containing wastes, F020, 021,

          022, 023, 026, 027, and 028

       containers:

47. G. Tanks

    1. 1.

       1. a. Modification or addition of tank units 3

          resulting in greater than 25% increase in

          the facility's tank capacity, except as

          provided in G(1)(c), G(1)(d), and G(1)(e)

          below

       2. b. Modification or addition of tank units 2

          resulting in up to 25% increase in the

          facility's tank capacity, except as

          provided in G(1)(d) and G(1)(e) below

       3. c. Addition of a new tank that will operate 2

          for more than 90 days using any of the

          following physical or chemical treatment

          technologies: neutralization, dewatering,

          phase separation, or component separation

       4. d. After prior approval of the Director, 11

          addition of a new tank that will operate

          for up to 90 days using any of the

          following physical or chemical treatment

          technologies: neutralization, dewatering,

          phase separation, or component separation

       5. e. Modification or addition of tank units or 11

          treatment processes necessary to treat

          wastes that are restricted from land

          disposal to meet any of the

          applicable treatment standards or to treat

          wastes to satisfy, in whole or in part, the

          standard of "use of practically available

          technology that yields the greatest

          environmental benefit," with prior

          approval of the Director. This modification

          may also involve addition of new waste codes.

          It is not applicable to dioxin-containing

          wastes, F020, 021, 022, 023, 026, 027,

          and 028

    2. 2. Modification of a tank unit or secondary 2

       containment system without increasing the

       capacity of the unit

    3. 3. Replacement of a tank with a tank that meets 1

       the design standards and has a capacity

       within +/-10% of the replaced tank provided

       -The capacity difference is no more than 1500

       gallons,

       -The facility's permitted tank capacity

       is not increased, and

       -The replacement tank meets the

       conditions in the permit.

    4. 4. Modification of a tank management practice 2

    5. 5. Management of different wastes in tanks:

       1. a. That require additional or different 3

          management practices, tank design,

          different fire protection specifications,

          or significantly different tank treatment

          process from that authorized in the permit,

          except as provided in (G)(5)(c) below

       2. b. That do not require additional or different 2

          management practices, tank design, different

          fire protection specifications, or

          significantly different tank treatment

          process than authorized in the permit,

          except as provided in (G)(5)(d)

       3. c. That require addition of units or change 11

          in treatment processes or management

          standards, provided that the wastes are

          restricted from land disposal and are to

          be treated to meet any of the

          applicable treatment standards or that are

          to be treated to satisfy, in whole or in

          part, the standard of "use of practically

          available technology that yields the

          greatest environmental benefit." The

          modification is not applicable to

          dioxin-containing wastes, F020, 021, 022,

          023, 026, 027, and 028

       4. d. That do not require the addition of 1

          units or a change in the treatment process

          or management standards, and provided that

          the units have previously received wastes

          of the same type, such as incinerator scrubber

          water. This modification is not applicable

          to dioxin-containing wastes, F020, 021,

          022, 023, 026, 027, and 028

          Note: See Subsection R315-270-42(g) for modification

          procedures to be used for the management of newly

          listed or identified wastes.

48. H. Surface Impoundments

    1. 1. Modification or addition of surface 3

       impoundment units that result in increasing

       the facility's surface impoundment storage or

       treatment capacity

    2. 2. Replacement of a surface impoundment unit 3

    3. 3. Modification of a surface impoundment unit 2

       without increasing the facility's surface

       impoundment storage or treatment capacity and

       without modifying the unit's liner, leak

       detection system, or leachate collection

       system

    4. 4. Modification of a surface impoundment 2

       management practice

    5. 5. Treatment, storage, or disposal of different

       1. a. That require additional or different 3

          management practices or different design

          of the liner or leak detection system than

          authorized in the permit

       2. b. That do not require additional or different 2

          management practices or different design of

          the liner or leak detection system than

          authorized in the permit

       3. c. That are wastes restricted from land 1

          disposal that meet the applicable treatment

          standards or that are treated to satisfy

          the standard of "use of practically

          available technology that yields the

          greatest environmental benefit," and

          provided that the unit meets the minimum

          technological requirements stated in

          Subsection R315-268-5(h)(2). This

          modification is not applicable to

          dioxin-containing wastes, F020, 021, 022,

          023, 026, 027, and 028

       4. d. That are residues from wastewater 1

          treatment or incineration, provided that

          disposal occurs in a unit that meets the

          minimum technological requirements stated in

          Subsection R315-268-5(h)(2), and provided

          further that the surface impoundment has

          previously received wastes of the same type,

          for example, incinerator scrubber water.

          This modification is not applicable to

          dioxin-containing wastes, F020, 021, 022,

          023, 026, 027, and 028

       wastes in surface impoundments:

    6. 6. Modifications of unconstructed units to comply 11

       with Subsections R315-264-221(c) and R315-264-226(d),

       and Sections R315-264-222, and R315-264-223

    7. 7. Changes in response action plan:

       1. a. Increase in action leakage rate 3

       2. b. Change in a specific response reducing its 3

          frequency or effectiveness

       3. c. Other changes 2

          Note: See Subsection R315-270-42(g) for modification

          procedures to be used for the management of newly

          listed or identified wastes.

49. I. Enclosed Waste Piles. For waste piles except

    1. 1. Modification or addition of waste pile units:

       1. a. Resulting in greater than 25% increase 3

          in the facility's waste pile storage or

          treatment capacity

       2. b. Resulting in up to 25% increase in the 2

          facility's waste pile storage or treatment

          capacity

    2. 2. Modification of waste pile unit without 2

       increasing the capacity of the unit

    3. 3. Replacement of a waste pile unit with another 1

       waste pile unit of the design and

       capacity and meeting each waste pile condition

       in the permit

    4. 4. Modification of a waste pile management 2

       practice

    5. 5. Storage or treatment of different wastes in

       1. a. That require additional or different 3

          management practices or different design

          of the unit

       2. b. That do not require additional or different 2

          management practices or different design

          of the unit

       waste piles:

    6. 6. Conversion of an enclosed waste pile to a 2

       containment building unit

       Note: See Subsection R315-270-42(g) for modification

       procedures to be used for the management of newly

       listed or identified wastes.

    those complying with Subsection R315-264-250(c), modifications

    are treated the same as for a landfill. The following

    modifications are applicable only to waste piles

    complying with Subsection R315-264-250(c).

50. J. Landfills and Unenclosed Waste Piles

    1. 1. Modification or addition of landfill units 3

       that result in increasing the facility's

       disposal capacity

    2. 2. Replacement of a landfill 3

    3. 3. Addition or modification of a liner, leachate 3

       collection system, leachate detection system,

       run-off control, or final cover system

    4. 4. Modification of a landfill unit without 2

       changing a liner, leachate collection system,

       leachate detection system, run-off control, or

       final cover system

    5. 5. Modification of a landfill management practice 2

    6. 6. Landfill different wastes:

       1. a. That require additional or different 3

          management practices, different design of

          the liner, leachate collection system, or

          leachate detection system

       2. b. That do not require additional or different 2

          management practices, different design of

          the liner, leachate collection system, or

          leachate detection system

       3. c. That are wastes restricted from land 1

          disposal that meet the applicable treatment

          standards or that are treated to satisfy

          the standard of "use of practically

          available technology that yields the

          greatest environmental benefit," and

          provided that the landfill unit meets the

          minimum technological requirements stated

          in Subsection R315-268-5(h)(2). This

          modification is not applicable to

          dioxin-containing wastes, F020, 021, 022,

          023, 026, 027, and 028

       4. d. That are residues from wastewater 1

          treatment or incineration, provided that

          disposal occurs in a landfill unit that

          meets the minimum technological requirements

          stated in Subsection R315-268-5(h)(2), and

          provided further that the landfill has

          previously received wastes of the same type,

          for example, incinerator ash. This

          modification is not applicable to

          dioxin-containing wastes, F020, 021, 022,

          023, 026, 027, and 028

    7. 7. Modifications of unconstructed units to comply 11

       with Subsection R315-264-251(c), Sections

       R315-264-252 and R315-264-253, Subsections R315-264-

       254(c) and R315-264-301(c), Section R315-264-

       302, Subsection R315-264-303(c), and Section

       R315-264-304

    8. 8. Changes in response action plan:

       1. a. Increase in action leakage rate 3

       2. b. Change in a specific response reducing its 3

          frequency or effectiveness

       3. c. Other changes 2

          Note: See Subsection R315-270-42(g) for modification

          procedures to be used for the management of newly

          listed or identified wastes.

51. K. Land Treatment

    1. 1. Lateral expansion of or other modification of 3

       a land treatment unit to increase areal extent

    2. 2. Modification of run-on control system 2
    3. 3. Modify run-off control system 3

    4. 4. Other modifications of land treatment unit 2

       component specifications or standards required

       in permit

    5. 5. Management of different wastes in land

       1. a. That require a change in permit operating 3

          conditions or unit design specifications

       2. b. That do not require a change in permit 2

          operating conditions or unit design

          specifications

          Note: See Subsection R315-270-42(g) for modification

          procedures to be used for the management of newly

          listed or identified wastes.

       treatment units:

    6. 6. Modification of a land treatment unit

       1. a. Increase rate or change method of waste 3

          application

       2. b. Decrease rate of waste application 1

       management practice to:

    7. 7. Modification of a land treatment unit 2

       management practice to change measures of pH

       or moisture content, or to enhance microbial

       or chemical reactions

    8. 8. Modification of a land treatment unit 3

       management practice to grow food chain crops,

       to add to or replace existing permitted crops

       with different food chain crops, or to modify

       operating plans for distribution of animal

       feeds resulting from those crops

    9. 9. Modification of operating practice due to 3

       detection of releases from the land treatment

       unit pursuant to Subsection R315-264-278(g)(2)

    10. 10. Changes in the unsaturated zone monitoring 3

        system, resulting in a change to the location,

        depth, number of sampling points, or replace

        unsaturated zone monitoring devices or

        components of devices with devices or

        components that have specifications different

        from permit requirements

    11. 11. Changes in the unsaturated zone monitoring 2

        system that do not result in a change to the

        location, depth, number of sampling points,

        or that replace unsaturated zone monitoring

        devices or components of devices with devices

        or components having specifications different

        from permit requirements

    12. 12. Changes in background values for hazardous 2

        constituents in soil and soil-pore liquid

    13. 13. Changes in sampling, analysis, or statistical 2

        procedure

    14. 14. Changes in land treatment demonstration 2

        program prior to or during the demonstration

    15. 15. Changes in any condition specified in the 11

        permit for a land treatment unit to reflect

        results of the land treatment demonstration,

        provided performance standards are met, and

        the Director's prior approval has been received

    16. 16. Changes to allow a second land treatment 11

        demonstration to be conducted if the results

        of the first demonstration have not shown the

        conditions under which the wastes can be

        treated completely, provided the conditions

        for the second demonstration are substantially

        the same as the conditions for the first

        demonstration and have received the prior

        approval of the Director

    17. 17. Changes to allow a second land treatment 3

        demonstration to be conducted if the results

        of the first demonstration have not shown the

        conditions under which the wastes can be

        treated completely, where the conditions for

        the second demonstration are not substantially

        the same as the conditions for the first

        demonstration

    18. 18. Changes in vegetative cover requirements for 2

        closure

52. L. Incinerators, Boilers, and Industrial Furnaces:

    1. 1. Changes to increase by more than 25% any of 3

       the following limits authorized in the

       permit: A thermal feed rate limit, a

       feedstream feed rate limit, a chlorine/

       chloride feed rate limit, a metal feed rate

       limit, or an ash feed rate limit. The Director

       shall require a new trial burn to substantiate

       compliance with the regulatory performance

       standards unless this demonstration can be

       made through other means

    2. 2. Changes to increase by up to 25% any of the 2

       following limits authorized in the permit: A

       thermal feed rate limit, a feedstream feed rate

       limit, a chlorine/chloride feed rate limit, a

       metal feed rate limit, or an ash feed rate

       limit. The Director shall require a new trial

       burn to substantiate compliance with the

       regulatory performance standards unless this

       demonstration can be made through other means

    3. 3. Modification of an incinerator, boiler, or 3

       industrial furnace unit by changing the

       internal size or geometry of the primary or

       secondary combustion units, by adding a

       primary or secondary combustion unit, by

       substantially changing the design of any

       component used to remove HCl/Cl2, metals, or

       particulate from the combustion gases, or by

       changing other features of the incinerator,

       boiler, or industrial furnace that could

       affect its capability to meet the regulatory

       performance standards. The Director shall

       require a new trial burn to substantiate

       compliance with the regulatory performance

       standards unless this demonstration can be

       made through other means

    4. 4. Modification of an incinerator, boiler, or 2

       industrial furnace unit in a manner that would

       not likely affect the capability of the unit

       to meet the regulatory performance standards

       but that would change the operating

       conditions or monitoring requirements

       specified in the permit. The Director may

       require a new trial burn to demonstrate

       compliance with the regulatory performance

       standards

    5. 5. Operating requirements:

       1. a. Modification of the limits specified in 3

          the permit for minimum or maximum

          combustion gas temperature, minimum

          combustion gas residence time, oxygen

          concentration in the secondary combustion

          chamber, flue gas carbon monoxide and

          hydrocarbon concentration, maximum

          temperature at the inlet to the particulate

          matter emission control system, or operating

          parameters for the air pollution control

          system. The Director shall require a new

          trial burn to substantiate compliance with

          the regulatory performance standards unless

          this demonstration can be made through other

          means

       2. b. Modification of any stack gas emission 3

          limits specified in the permit, or

          modification of any conditions in the

          permit concerning emergency shutdown or

          automatic waste feed cutoff procedures or

          controls

       3. c. Modification of any other operating 2

          condition or any inspection or recordkeeping

          requirement specified in the permit

    6. 6. Burning different wastes:

       1. a. If the waste contains a POHC that is more 3

          difficult to burn than authorized by the

          permit or if burning of the waste requires

          compliance with different regulatory

          performance standards than specified in

          the permit. The Director shall require a new

          trial burn to substantiate compliance with

          the regulatory performance standards unless

          this demonstration can be made through

          other means

       2. b. If the waste does not contain a POHC that 2

          is more difficult to burn than authorized

          by the permit and if burning of the waste

          does not require compliance with different

          regulatory performance standards than

          specified in the permit

          Note: See Subsection R315-270-42(g) for

          modification procedures to be used for the management

          of newly listed or identified wastes.

    7. 7. Shakedown and trial burn:

       1. a. Modification of the trial burn plan or 2

          any of the permit conditions applicable

          during the shakedown period for determining

          operational readiness after construction,

          the trial burn period, or the period

          immediately following the trial burn

       2. b. Authorization of up to an additional 720 11

          hours of waste burning during the

          shakedown period for determining

          operational readiness after construction,

          with the prior approval of the Director

       3. c. Changes in the operating requirements set 11

          in the permit for conducting a trial burn,

          provided the change is minor and has

          received the prior approval of the

          Director

       4. d. Changes in the ranges of the operating 11

          requirements set in the permit to reflect

          the results of the trial burn, provided the

          change is minor and has received the prior

          approval of the Director

    8. 8. Substitution of an alternative type of 1

       nonhazardous waste fuel that is not specified

       in the permit

    9. 9. Technology changes needed to meet standards 11

       under 40 CFR part 63, Subpart EEE-National

       Emission Standards for Hazardous Air

       Pollutants From Hazardous Waste Combustors,

       provided the procedures of Subsection R315-270-42(j) are

       followed.

    10. 10. Changes to RCRA permit provisions needed to

        support transition to 40 CFR part 63, Subpart

        EEE-National Emission Standards for Hazardous

        Air Pollutants From Hazardous Waste Combustors,

        provided the procedures of Subsection R315-

        270-42(k) are followed.

53. M. Containment Buildings.

    1. 1. Modification or addition of containment

       1. a. Resulting in greater than 25% increase 3

          in the facility's containment building

          storage or treatment capacity

       2. b. Resulting in up to 25% increase in the 2

          facility's containment building storage or

          treatment capacity

       building units:

    2. 2. Modification of a containment building unit 2

       or secondary containment system without

       increasing the capacity of the unit

    3. 3. Replacement of a containment building with a

       1. a. The unit capacity is not increased 1

       2. b. The replacement containment building meets 1

          the conditions in the permit

       containment building that meets the

       design standards provided:

    4. 4. Modification of a containment building 2

       management practice

    5. 5. Storage or treatment of different wastes in

       1. a. That require additional or different 3

          management practices

       2. b. That do not require additional or different 2

          management practices

       containment buildings:

54. N. Corrective Action:

    1. 1. Approval of a corrective action management 3

       unit pursuant to Section R315-264-552

    2. 2. Approval of a temporary unit or time 2

       extension for a temporary unit pursuant to

       Section R315-264-553

    3. 3. Approval of a staging pile or staging pile 2

       operating term extension pursuant to

       Section R315-264-554

55. O. Burden Reduction

    1. 1. Reserved

    2. 2. Development of one contingency plan based on 1

       Integrated Contingency Plan Guidance pursuant

       to Subsection R315-264-52(b)

    3. 3. Changes to recordkeeping and reporting 1

       requirements pursuant to: Subsections R315-

       264-56(i), R315-264-343(a)(2), R315-264-

       1061(b)(1),(d), R315-264-1062(a)(2), R315-264-

       196(f), R315-264-100(g), and R315-264-113(e)(5)

    4. 4. Changes to inspection frequency for tank 1

       systems pursuant to Subsection R315-264-195(b)

    5. 5. Changes to detection and compliance monitoring 1

       1. (g)(2), and (g)(3), R315-264-99(f), and (g)

          1Class 1 modifications requiring prior Agency approval.

       program pursuant to Subsections R315-264-98(d),

KEY: hazardous waste

Date of Last Change: November 17, 2025

Notice of Continuation: December 11, 2025

Authorizing, and Implemented or Interpreted Law: 19-6-105; 19-6-106