The department shall notify any applicant for public assistance who resides in a local area served by the Washington basic health plan and is under sixty-five years of age of the availability of basic health care coverage to qualified enrollees in the Washington basic health plan under chapter 70.47 RCW, unless the Washington basic health plan administrator has notified the department of a closure of enrollment in the area. The department shall maintain a supply of Washington basic health plan enrollment application forms, which shall be provided in reasonably necessary quantities by the administrator, in each appropriate community service office for the use of persons wishing to apply for enrollment in the Washington basic health plan.