(1) The department shall biennially determine all of the following:
(a) The number of sites for which a person is seeking to qualify for an exemption under s. 292.15.
(b) The number of sites for which a certificate of completion was issued under s. 292.15.
(c) The number of sites for which a certificate of completion was issued under s. 292.15 at which it is discovered that the cleanup failed or at which additional hazardous substances are found after the certificate of completion was issued.
(d) The number of sites described in par.
(b) at which the department has determined that it is necessary to conduct remedial action using moneys from the environmental fund and the estimated costs of performing that remedial action.
(e) The number of sites for which a claim was made against an insurance policy required under s. 292.15 (2) (ae).
(f) The number of sites for which a claim was made against an insurance policy required under s. 292.15 (2) (af).
(2) No later than September 15 of each even-numbered year, the department shall submit a report describing its determinations under sub.
(1) to the legislature under s. 13.172 (2), to the governor and to the department of administration.
(3) The department may require a person to provide information necessary for the department to make the determinations under sub. (1).