(1) Except as provided in (2), the owner or operator of a Class II landfill unit shall cover disposed solid waste with six inches of earthen material at the end of each operating day, or at more frequent intervals if necessary, to control disease vectors, fires, odors, blowing litter, and scavenging.
(2) The owner or operator shall submit for departmental approval procedures for use of any alternative daily cover materials and include those procedures in the operation and maintenance plan required in ARM 17.50.508 and 17.50.509. The following criteria also apply:
(a) the procedures for the use of alternative daily cover materials must provide for the application of six inches of approved cover soil at least once per week;
(b) the owner or operator shall demonstrate in the operation and maintenance plan that the material used in, and the thickness of, the alternative daily cover will control disease vectors, fires, odors, blowing litter, and scavenging, and minimize leachate without presenting a threat to human health or the environment; and
(c) the owner or operator of a Class II landfill unit for which some portion will not receive additional waste within 90 days shall place on that portion an intermediate cover of at least one foot of approved cover soil, unless the owner or operator has submitted for department approval a demonstration that there is good cause for not covering.