There is hereby established the Prince George's County, Maryland, Deep Well Loan Fund for the purpose of making loans, on preferred terms and conditions, to eligible owner-occupants of single-family, residential structures for drilling individual deep wells to provide a water supply to serve such structures. All funds made available for the purposes of this Division shall constitute a self-sustaining fund of Prince George's County and all such funds shall be paid into, or loaned out of, or otherwise expended from, such self-sustaining fund. In accordance with the provisions of Section 10-173.09 of this Division, the County shall make such initial and subsequent contributions into such self-sustaining fund as appropriate and necessary until such fund becomes self-sustaining as a result of the repayment of loans made therefrom.