4Hazardous substances consent: general
(1)Hazardous substances consent—
(a)may be granted on an application under this Act, or
(b)may be deemed to have been granted by virtue of section 9 or 10.
(2)Without prejudice to the provisions of this Act, any hazardous substances consent shall (except in so far as it otherwise provides) enure for the benefit of the land to which it relates and of all persons for the time being interested in the land.