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—
(a)name (if any);
(b)national grid reference;
(c)materials used to construct it (earth, concrete, masonry, rock fill, other);
(d)type (buttress, embankment, gravity arch, non-gravity arch, service);
(e)maximum height (in metres);
(f)bottom level (in metres above ordnance datum) at ground level;
(g)crest level (in metres above ordnance datum);
(h)crest length (in metres);
(i)escapable volume of water (in cubic metres) at top water level (if available);
(j)escapable volume of water (in cubic metres) at dam crest level (if available);
(k)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);
(l)year completed; and
(m)maintenance arrangements.