South Carolina Code of Regulations
Chapter 61 - DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL
Subchapter 61-79 - Hazardous Waste Management Regulations
Part 61-79.264 - STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES
Subpart S - SPECIAL PROVISIONS FOR CLEANUP
Section 61-79.264.S.553 - Temporary Units (TU)

Universal Citation: SC Code Regs 61-79.264.S.553

Current through Register Vol. 48, No. 9, September 27, 2024

(a) For temporary tanks and container storage areas used for treatment or storage of hazardous remediation wastes, during remedial activities required under 264.101 or RCRA section3008(h)(h), or at a permitted facility that is not subject to 264.101 the owner or operator may request approval by the Department to designate a unit at the facility as a temporary unit. A temporary unit must be located within the contiguous property under the control of the owner operator where the wastes to be managed in the temporary unit originated. For temporary units, the Department may replace the design, operating, or closure standard applicable to these units under this part 264 or part 265 with alternative requirements which protect human health and the environment.

(b) Any temporary unit to which alternative requirements are applied in accordance with paragraph (a) of this section shall be:

(1) Located within the facility boundary; and

(2) Used only for treatment or storage of remediation wastes.

(1) Length of time such unit will be in operation;

(2) Type of unit;

(3) Volumes of wastes to be managed;

(4) Physical and chemical characteristics of the wastes to be managed in the unit;

(5) Potential for releases from the unit;

(6) Hydrogeological and other relevant environmental conditions at the facility which may influence the migration of any potential releases; and

(7) Potential for exposure of humans and environmental receptors if releases were to occur from the unit.

(d) The owner or operator shall specify in the permit application or order the length of time a temporary unit will be allowed to operate, to be no longer than a period of one year. The shall also specify the design, operating, and closure requirements for the unit.

(e) The Department may extend the operational period of a temporary unit once for no longer than a period of one year beyond that originally specified in the permit or order, if the Department determines that:

(1) Continued operation of the unit will not pose a threat to human health and the environment; and

(2) Continued operation of the unit is necessary to ensure timely and efficient implementation of remedial actions at the facility.

(f) Incorporation of a temporary unit or a time extension for a temporary unit into an existing permit shall be:

(1) Approved in accordance with the procedures for Department-initiated permit modifications under Section270.41; or

(2) Requested by the owner/operator as a Class 3 modification according to the procedures under 270.42.

(g) The owner or operator shall document the rationale for designating a temporary unit and for granting time extensions for temporary units and the Department shall make such documentation available to the public.

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