Haw. Code R. § 11-280.1-71 - Permanent closure and changes-in-service

(a) At least thirty days before beginning either permanent closure or a change-in-service of an UST or tank system under subsections (c) and (d), owners and operators must notify the department of their intent to permanently close or make the change-in-service, as required in section 11-280.1-34, unless such action is in response to a confirmed release. The required assessment of the excavation zone under section 11-280.1-72 must be performed after notifying the department but before completion of the permanent closure or change-in-service.
(b) At least seven days before excavation work for a permanent closure or change-in-service, owners or operators must notify the department of the exact date that the work will occur, as required in section 11-280.1-34.
(c) To permanently close an UST or tank system, owners and operators must:
(1) Empty and clean the UST and tank system by removing all liquids and accumulated sludges;
(2) Remove the UST or tank system from the ground, fill the UST or tank system with an inert solid material, or close the tank in place in a manner approved by the department; and
(3) Conduct a site assessment in accordance with section 11-280.1-72.
(d) Continued use of an UST system to store a non-regulated substance is considered a change-in-service. Before a change-in-service, owners and operators must:
(1) Empty and clean the UST and tank system by removing all liquids and accumulated sludges; and
(2) Conduct a site assessment in accordance with section 11-280.1-72.
(e) Within thirty days of completing a permanent closure or change-in-service, owners and operators must submit to the department:
(1) A notification as required in section 11-280.1-34; and
(2) A UST closure report, including the results of the site assessment conducted in accordance with section 11-280.1-72.

Notes

Haw. Code R. § 11-280.1-71
[Eff 7/15/2018] (Auth: HRS §§ 342L-3, 342L-37) (Imp: HRS §§ 342L-3, 342L-37) Comp 1/17/2020 Am and comp 7/8/21; Comp 3/21/2025

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