The department of ecology shall report to the legislature on the last working day of December of 1984, 1985, and 1986, and thereafter as deemed appropriate by the department, on dam facilities that exhibit safety deficiencies sufficient to pose a significant threat to the safety of life and property. The report shall identify the owner or owners of such facilities, detail the owner's ability and attitude towards correcting such deficiencies, and provide an estimate of the cost of correcting the deficiencies if a study has been completed.