Hawaii Administrative Rules
Title 11 - DEPARTMENT OF HEALTH
Subtitle 1 - GENERAL DEPARTMENTAL PROVISIONS
Chapter 264 - HAZADOUS WASTE MANAGEMENT STANDARDS FOR OWNERS AND OPERATERS OF HAZADOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES
Subchapter J - TANK SYSTEMS
Section 11-264-197 - Closure and post-closure care

Universal Citation: HI Admin Rules 11-264-197

Current through February, 2024

(a) At closure of a tank system, the owner or operator must remove or decontaminate all waste residues, contaminated containment system components (liners, etc.), contaminated soils, and structures and equipment contaminated with waste, and manage them as hazardous waste, unless subsection 11-261-3(d) applies. The closure plan, closure activities, cost estimates for closure, and financial responsibility for tank systems must meet all of the requirements specified in Subchapters G and H.

(b) If the owner or operator demonstrates that not all contaminated soils can be practicably removed or decontaminated as required in subsection (a), then the owner or operator must close the tank system and perform post-closure care in accordance with the closure and post-closure care requirements that apply to landfills (section 11-264-310 ). In addition, for the purposes of closure, post-closure, and financial responsibility, such a tank system is then considered to be a landfill, and the owner or operator must meet all of the requirements for landfills specified in Subchapters G and H.

(c) If an owner or operator has a tank system that does not have secondary containment that meets the requirements of subsections 11-264-193(b) through (f) and has not been granted a variance from the secondary containment requirements in accordance with subsection 11-264-193(g), then:

(1) The closure plan for the tank system must include both a plan for complying with subsection (a) and a contingent plan for complying with subsection (b).

(2) A contingent post-closure plan for complying with subsection (b) must be prepared and submitted as part of the permit application.

(3) The cost estimates calculated for closure and post-closure care must reflect the costs of complying with the contingent closure plan and the contingent post-closure plan, if those costs are greater than the costs of complying with the closure plan prepared for the expected closure under subsection (a).

(4) Financial assurance must be based on the cost estimates in paragraph (c)(3).

(5) For the purposes of the contingent closure and post-closure plans, such a tank system is considered to be a landfill, and the contingent plans must meet all of the closure, post-closure, and financial responsibility requirements for landfills under Subchapters G and H.

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