The disposal facility shall be sited, designed, used, operated, and closed to achieve long-term stability of the disposal site and to eliminate, to the extent practicable, the need for ongoing active maintenance of the disposal site following closure so that only surveillance, monitoring, or minor custodial care is required.
[Statutory Authority: RCW
43.70.040. WSR 91-02-049 (Order 121), recodified as § 246-250-200, filed 12/27/90, effective 1/31/91. Statutory Authority: RCW
70.98.080. WSR 87-01-031 (Order 2450), § 402-61-210, filed 12/11/86.]