N.Y. Comp. Codes R. & Regs. Tit. 6 §§ 383-7.5

Current through Register Vol. 46, No. 45, November 2, 2024

Section 383-7.5 - Additional design and construction requirements for aboveground disposal units

Aboveground disposal units must be designed to be free standing, engineered structures that can be visually inspected during the operation period. The disposal unit must be designed to accommodate a multi-layered earthen cover, or an alternative approved in the permit, that provides protection to the disposal unit and long-term containment of the waste.

(a) Loads and load combinations. The disposal unit must be designed to accommodate the loads and load combinations resulting from the placement of a multi-layer earthen cover over and around the disposal unit and the construction equipment required to place the cover, if such a cover is required by the permit.

(b) Protective enclosure.

(1) The disposal unit must be provided with a separate and independently supported protective enclosure that will function during the operation period.

(2) The protective enclosure must be designed to meet the following requirements:

(i) the protective enclosure must be freestanding and provide weather and frost protection to the disposal units until the end of the operation period;

(ii) the protective enclosure must be capable of being removed during facility closure without adversely affecting the performance of the disposal units; and

(iii) the protective enclosure must be watertight and capable of being easily inspected and repaired throughout the operation period.

(3) The roof of the protective enclosure and of the disposal unit must be sloped at a gradient of no less than two percent and sufficient to facilitate drainage and prevent ponding of water.

(c) A multi-layer earthen cover which may be required during facility closure under section 383-9.5 of this Part must meet the design and construction requirements in section 383-7.6(c) of this Subpart.

(d) To facilitate inspection during the operation period, the major structural components of the disposal units must not be covered with materials that would mask structural defects such as cracking or settlement or that would unreasonably impede any required repairs.

N.Y. Comp. Codes R. & Regs. Tit. 6 §§ 383-7.5