18.—(1) The storage on any premises in a secure container or containers of waste of a kind described in sub-paragraph (2) below if—
(a)the storage capacity of the container or containers does not exceed 400 cubic metres in total;
(b)in the case of waste oil, the storage capacity of any container or containers used for its storage does not exceed 3 cubic metres in total, and provision is made to prevent oil escaping into the ground or a drain;
(c)there are no more than 20 containers on those premises;
(d)the waste will be reused, or used for the purposes of—
(i)any activity described in paragraph 11 carried on at those premises; or
(ii)any other recovery activity;
(e)each kind of waste described in sub-paragraph (2) below stored on the premises is kept separately;
(f)no waste is stored on the premises for longer than twelve months; and
(g)the person storing the waste is the owner of the container or has the consent of the owner.
(2) Sub-paragraph (1) above applies to the following kinds of waste—
(a)any waste described in paragraph 17 other than waste solvents, refrigerants or halons;
(b)waste oil.