(A) Dikes shall be constructed of earth, clay, masonry or reinforced concrete not higher than one-half the height of the tank or tanks enclosed, so constructed as to afford adequate protection.
(B) Earthwork embankments shall be firmly and completely built of good earth or clay, free from stones, vegetable matter and other foreign material. They shall have a flat section at the top not less than two and one-half feet wide and a slope of at least one to one (45 degrees) on both sides.
(C) Masonry or concrete dikes shall have footings below the frost line.
(D) If a concrete floor covering is provided for the area enclosed by a concrete dike, a sump shall be provided at some convenient place, attached to which shall be a pump of approved design, so that any accumulation of water or oil may be removed immediately.
(1980 Code, § 27.031) Penalty, see § 98.999