39.—(1) A “stop notice” is a notice prohibiting a person from carrying on an activity specified in the notice until the person has taken the steps specified in the notice.
(2) If the Environment Agency considers that a person is carrying on an activity in contravention of regulation 12(1), 13(1), 14(1) or 25 it may serve a stop notice on that person.
(3) If a regulation authority considers that a person is carrying on an activity in contravention of section 1 of the 1989 Act it may serve a stop notice on that person.
(4) A stop notice must—
(a)state the authority’s reason for serving it;
(b)specify the matters constituting the contravention;
(c)specify the steps which must be taken to remedy the contravention;
(d)give information as to the rights of appeal (including the period within which an appeal must be brought).