After completion of construction of the public utility facilities from
approved plans on any project herein classified, the developer or owner responsible
for the construction shall prepare and submit to the Administrator three copies
of as-built plans, based on accurate, field-obtained information, to show
actual conditions of the finished construction. The as-built plans shall show
revisions in and permanently indicate changes on the original tracings or
master sheets which were made to the plans and/or specifications approved
by the Administrator for construction. As-built plans shall be prepared and
certified by a professional engineer registered in the Commonwealth of Virginia.