Water Resources Act 1991

7 (1) Each instrument signifying the consent of the Authority under paragraph 2 or 5 above shall specify a period during which no notice by virtue of paragraph 6(2) or (4)(c) above shall be served in respect of the consent.

(2) Each notice served by the Authority by virtue of paragraph 6(2) or (4)(c) above (except a notice which only revokes a consent) shall specify a period during which a subsequent such notice which alters the effect of the first-mentioned notice shall not be served.

(3) The period specified under sub-paragraph (1) or (2) above in relation to any consent shall not, unless the person who proposes to make or makes discharges in pursuance of the consent otherwise agrees, be less than the period of two years beginning—

(a) in the case of a period specified under sub-paragraph (1) above, with the day on which the consent takes effect; and

(b) in the case of a period specified under sub-paragraph (2) above, with the day on which the notice specifying that period is served.

(4) A restriction imposed under sub-paragraph (1) or (2) above shall not prevent the service by the Authority of a notice by virtue of paragraph 6(2) or (4)(c) above in respect of a consent given under paragraph 5 above if—

(a) the notice is served not more than three months after the beginning of the period specified in paragraph 5(5) above for the making of representations and objections with respect to the consent; and

(b) the Authority or, as the case may be, the Secretary of State considers, in consequence of any representations or objections received by it or him within that period, that it is appropriate for the notice to be served.