4E.—(1) The Commissioners shall prepare a report (in this Part referred to as an "environmental impact assessment report") on proposed arterial drainage works in respect of which an environmental impact assessment is required to be carried out pursuant to section 4C.

(2) An environmental impact assessment report shall include, at a minimum, the following information:

(a) a description of the proposed arterial drainage works concerned, comprising information on the site, design, size and other relevant features of those works;

(b) a description of the likely significant effects of the proposed arterial drainage works on the environment;

(c) a description of—

(i) the features of the proposed arterial drainage works, if any, and

(ii) the measures, if any,

envisaged in order to avoid, prevent or reduce and, if possible, offset likely significant adverse effects on the environment;

(d) a description of the reasonable alternatives studied by the Commissioners, which are relevant to the proposed arterial drainage works and its specific characteristics, and an indication of the main reasons for the option chosen, taking into account the effects of the works on the environment;

(e) a non-technical summary of the information referred to in paragraphs (a) to (d);

(f) any additional information specified in Annex IV to the directive relevant to the specific characteristics of the proposed arterial drainage works and to the environmental features likely to be affected.

(3) Where the Minister issues an opinion under section 4F, the environmental impact assessment report for the drainage works concerned shall be based on that opinion, and include the information that may reasonably be required for reaching a reasoned conclusion on the significant effects of the project on the environment, taking into account current knowledge and methods of assessment.

(4) The Commissioners shall, in preparing the environmental impact assessment report, take into account the available results of other relevant assessments under the law of the State, the European Union or Member States with a view to avoiding duplication of assessments.

(5) The Commissioners shall ensure that an environmental impact assessment report is prepared on their behalf by competent experts.]