Alaska Stat. § 46.03.100
(b) Prior authorization may be provided by the department, in its discretion, through one or a combination of the following:
(e) This section does not apply to
(4) discharges of solid or liquid waste material or water discharges from the following activities if the discharge is incidental to the activity and the activity does not produce a discharge from a point source, as that term is defined in regulations adopted under this chapter, into any waters of the United States:
(f) A person who applies for an authorization to operate a solid waste disposal facility that accepts hazardous waste or a mining waste disposal facility for an operation that chemically processes ores or has the potential to generate acid shall furnish to the department proof of financial responsibility to manage and close the facility in a manner that the department finds will control or minimize the risk of the release of unauthorized levels of pollutants from the facility to waters. The department may require that a municipal solid waste disposal facility furnish proof of financial responsibility. Proof of financial responsibility may be demonstrated by self-insurance, insurance, surety bond, corporate guarantee, letter of credit, certificate of deposit, or other proof of financial responsibility approved by the department, under regulations adopted by the department. Regulations adopted under this subsection must set financial tests for the acceptance of corporate guarantees and other forms of financial responsibility that the department determines would be required for an independent showing of financial capability. For a mining waste disposal facility, the department may accept as adequate to satisfy the requirement of this subsection financial assurance for reclamation provided to a state or federal land management agency if it otherwise meets the requirements of this subsection. The department's acceptance of proof of financial responsibility under this subsection expires