18. A notice published in accordance with paragraph 16 is to be treated as having been served on—
(a)any occupier or other person in charge of any premises within the demarcated zone;
(b)any person who—
(i)has a right to use any contaminated surface water;
(ii)has any contaminated surface water on premises within the demarcated zone which the person occupies or is in charge of; and
(c)any person who operates machinery or carries out any other activity in relation to the production of potatoes or tomatoes within the demarcated zone.