(1)    The storage of hazardous waste at the generation site by the generator of that waste for a period of less than 90 days is not subject to this section. The storage of hazardous waste for a period of less than 10 days is exempt from this section if the storage is in connection with the transporting or movement of the hazardous waste. Notwithstanding the exemptions granted under this subsection, no person may store or cause the storage of hazardous waste in a manner which causes environmental pollution.

   (2)   No person may:

      (a)    Construct a hazardous waste facility unless the person complies with ss. 289.23 to 289.30.

      (b)    Operate a hazardous waste facility without an interim or operating license issued under this section.

   (3)   Licenses issued under this section shall require compliance with s. 289.31 and rules promulgated under this chapter.

   (4)   The department may issue an interim license to a person who operates a hazardous waste facility if the person applies for a license under this section and complies with conditions and restrictions prescribed by rule or special order by the department pending the decision on the issuance of an operating license under this section. This subsection applies only if the facility was in existence on November 19, 1980, or on a subsequent date which is the effective date of the statute or rule requiring the facility to obtain an operating license under this section. An interim license issued under this subsection constitutes an operating license under this section.

   (5)   An existing hazardous waste facility which was never licensed under this section, whether or not it was previously authorized to receive hazardous waste under s. 289.31, shall be treated as an unlicensed proposed facility which has not been constructed for the purpose of complying with sub. (2) (a), for the purpose of obtaining an operating license under this section and for the purpose of administrative procedure and review under ch. 227.

   (6)   A treatment facility which is required to be permitted as a hazardous waste treatment facility under the resource conservation and recovery act and the discharges of which are regulated under ch. 283 shall comply with construction and operating standards promulgated by rule by the department. The department shall promulgate rules under this subsection which are substantially equivalent to and not more stringent than the standards promulgated under the resource conservation and recovery act.

   (7)   Notwithstanding subs. (2) (a), (3) and (5), the owner or operator of a hazardous waste facility who holds a permit for the treatment, storage or disposal of hazardous waste issued before January 31, 1986, by the U.S. environmental protection agency under 42 U.S. Code § 6925 (c) and who is in compliance with the permit may obtain an operating license under sub. (2) (b) for the federally permitted activities by doing all of the following:

      (a)    Submitting to the department, on a form provided by the department, an application showing that the facility meets the standards established under ss. 289.21 to 289.31 and this chapter and rules promulgated under those sections and this chapter.

      (b)    Complying with any condition that the department prescribes as necessary to meet any standard or requirement established under ss. 289.21 to 289.31 and this chapter.

      (c)    Paying any fee required under ss. 291.05 (7) and 291.33.