Paragraph 10
For each part of a structure or area referred to in section 1(2) of the Act or, as the case may be, for each structure or area in a combination referred to in section 1(3) comprising a dam, reservoir wall or embankment, the—
name (if any);
national grid reference;
materials used to construct it (earth, concrete, masonry, rock fill, other);
type (buttress, embankment, gravity arch, non-gravity arch, service);
maximum height (in metres);
bottom level (in metres above ordnance datum) at ground level;
crest level (in metres above ordnance datum);
crest length (in metres);
escapable volume of water (in cubic metres) at top water level (if available);
escapable volume of water (in cubic metres) at dam crest level (if available);
fetch (namely the effective length of the controlled reservoir, of which the structure or area forms part, over which wind can build up waves) and direction (if available);
year completed; and
maintenance arrangements.