Delaware Code
Chapter 74A. THE JEFFREY DAVIS ABOVEGROUND STORAGE TANK ACT
§ 7407A. Tank performance standards; release detection, prevention and correction regulations.

(a) The Department, after notice and opportunity for public comment and within 24 months after July 8, 2002, shall promulgate tank performance standards, corrective action regulations and other appropriate regulations necessary and desirable to effectuate the purposes of this chapter.
(b) The Department's standards and regulations must, at a minimum, include the following provisions:

(1) A requirement that a product inventory system or other similar control system, adequate to identify releases from aboveground storage tanks, be maintained;
(2) Procedures to follow when the product inventory system records or other similar control system records indicate an abnormal loss or gain of a regulated substance which is not explainable by spillage, temperature variations or other known causes;
(3) A requirement that appropriate corrective action be taken in response to a release from an aboveground storage tank as may be necessary to protect human health and the environment;
(4) A requirement to maintain records documenting actions taken in accordance with paragraphs (b)(1) through (3) of this section;
(5) A requirement for an enforcement program;
(6) A requirement for standards that will ensure against any future release from an aboveground storage tank being taken out of service or subsequently reintroduced into service; and
(7) A requirement for appropriate inspection, maintenance, monitoring and repair of aboveground storage tanks and associated equipment. The inspection and monitoring requirements shall require, at a minimum, an inspection report whenever a tank is emptied for maintenance or repair or removed from service. Such reports shall include, but not be limited to, the following information:

a. The structural and material thickness of the tanks;
b. The repairs needed;
c. A completion report for the repairs; and
d. For newly constructed aboveground storage tanks, a report including the welding procedures, welding certification reports, and any nondestructive testing performed on the aboveground storage tank prior to placing the tank into service.
All reports shall be submitted to the Department and shall be kept on file by the owner for the life of the aboveground storage tank. Should any aboveground storage tank have a change of ownership, all reports shall be provided to and maintained by all future owners.