Sensitive areas and high natural dispersion areas
3.—(1) In these Regulations–
(a)“sensitive area” means an area of water which the Secretary of State has identified in accordance with the criteria set out in Part I of Schedule 1 and which is shown as such on a map deposited with every river purification authority for the purposes of this regulation;
(b)“high natural dispersion area” means an area of water which the Secretary of State has identified in accordance with the criteria set out in Part II of Schedule 1 and which is shown as such on a map deposited with every river purification authority for the purposes of this regulation.
(2) The Secretary of State shall review the identification of sensitive areas and high natural dispersion areas, in accordance with the relevant criteria in Schedule 1, no later than 31 December 1997 and thereafter at intervals of no more than four years.
(3) Where, following a review under paragraph (2) above, an area of water becomes or ceases to be identified as a sensitive area or a high natural dispersion area the Secretary of State shall deposit with every river purification authority, in substitution for the map already so deposited for the purposes of this regulation, such further map as may be necessary to reflect the changes in identification.