N.Y. Comp. Codes R. & Regs. Tit. 6 §§ 383-9.5

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

Section 383-9.5 - Additional facility closure requirements for above ground disposal

(a) Facility closure of land disposal facilities that have above ground disposal units must include measures to:

(1) protect the above ground disposal unit against frost, weathering, and erosion of its foundation;

(2) provide resistance to the infiltration of water into the above ground disposal unit;

(3) direct surface water away from the above ground disposal unit and the waste;

(4) provide an additional barrier to the release of radionuclides into the environment; and

(5) protect against inadvertent intrusion, if required by section 382.33(a) or 382.34 of this Title.

(b) To meet the requirements of subdivision (a) of this section, the permittee may either:

(1) cover the disposal units as described in subdivision (c) of this section; or

(2) propose alternative measures that will meet the requirements of paragraphs (a)(1) through (5) of this section and demonstrate to the department that, with those measures in effect, the aboveground disposal units will meet the performance objectives after institutional control ends.

(c) The requirements of subdivision (a) of this section may be met by backfilling around the sides of the aboveground disposal units and installing a multilayer earthen cover, in accordance with section 383-7.6(c) of this Part, over the disposal units and the backfill. To minimize the potential for a buildup of water against the sides of the disposal unit, the backfill material must be free draining with a permeability greater than 1 x 10-4 centimeters per second and must be of sufficient height and extent to support the cover. The cover must be of sufficient extent to direct infiltrating or percolating water away from the disposal units.

N.Y. Comp. Codes R. & Regs. Tit. 6 §§ 383-9.5