Each department caseworker who refers a client for preservation services shall file a report with his or her direct supervisor stating the reasons for which the client was referred. The caseworker's supervisor shall verify in writing his or her belief that the family who is the subject of a referral for preservation services meets the eligibility criteria for services as provided in this chapter. The direct supervisor shall report monthly to the regional administrator on the provision of these services. The regional administrator shall report to the secretary quarterly on the provision of these services for the entire region. The secretary shall post on the department's website a semiannual report on the provision of these services on a statewide basis.