Section R. 299.9636 - Temporary unit requirementsRule 636.
(1) For the purposes of implementing corrective action remedies under part 111 of the act and these rules or implementing remedies at facilities that are not subject to corrective action under part 111 of the act and these rules, the director may designate tank or container storage units used for the treatment or storage of remediation wastes as temporary units. A temporary unit shall be located within the contiguous property under the control of the owner or operator where the wastes to be managed in the temporary unit originated. In establishing standards for temporary units, the director shall consider all of the following factors: (a) The length of time the unit will be in operation.(c) The volume of waste to be managed.(d) The physical and chemical characteristics of the wastes to be managed in the unit.(e) The potential for releases from the unit.(f) The hydrogeological and other relevant environmental conditions at the facility which may influence the migration of any potential releases.(g) The potential for exposure of humans and environmental receptors if a release were to occur from the unit.(2) The director may allow the use of alternate design, operating, and closure standards for temporary units provided all of the following requirements are met: (a) The temporary unit is located within the facility boundary.(b) The temporary unit is used only for the treatment or storage of remediation wastes.(c) The alternate standards are protective of human health and the environment.(3) The director shall specify all of the following information in the license or order for each temporary unit: (a) The length of time a temporary unit will be allowed to operate shall be not greater than 1 year.(b) The design, operating, and closure requirements for the unit.(4) The director may extend the operational period of the temporary unit 1 time, for a period of no longer than 1 year beyond the time period originally specified in the license or order, provided that all of the following requirements are met: (a) The continued operation of the unit will not pose a threat to human health and the environment.(b) The continued operation of the unit is necessary to ensure timely and efficient implementation of remedial actions at the facility.(5) The incorporation of a temporary unit or a time extension for a temporary unit into an existing license shall be requested and approved by the director in accordance with R 299.9519 and R 299.9520.(6) The director shall document the rationale for designating a temporary unit and for granting time extensions for temporary units and make the documentation available to the public.Mich. Admin. Code R. 299.9636