An environmental statement may include, by way of explanation or amplification of any specified information, further information on any of the following matters —
(a) the physical characteristics of the proposed improvement works, the nature and quality of the materials to be used and the land-use requirements during the construction and operational phases;
(b) the estimated type and quantity of expected residues and emissions (including pollutants of water, air or soil, noise, vibration, light, heat and radiation) resulting from the proposed improvement works when in operation;
(c) (in outline) the main alternatives (if any) studied by the drainage body and an indication of the main reasons for choosing the improvement works proposed, taking into account the environmental effects;
(d) the likely significant direct and indirect effects on the environment of the improvement works proposed which may result from —
(i) the use of natural resources;
(ii) the emission of pollutants, the creation of nuisances and the elimination of waste;
(e) the forecasting methods used to assess any effects on the environment about which information is given under subparagraph (d); and
(f) any difficulties, such as technical deficiencies or lack of know-how, encountered in compiling any item of specified information.
In paragraph (d), “effects” includes secondary, cumulative, short, medium and long-term, permanent, temporary, positive and negative effects.