Grounds 1 and 2: Error in construing Easements B and C as being limited to works that do not project, or do not substantially project, above the ground?
59Easements B and C were stated in the Acquisition Notice to be "more fully described in" Schedules 4 and 2 respectively, which deal with the rights and obligations in respect of "Works (Trenched)" and "Works (Mounded)".
60The Trust maintained that both Easements B and C permitted works to be placed "on" and "upon" the surface of the land. The words of confinement "[but] not above" precluded works suspended above the ground (such as a pipe resting upon concrete supports), but did not prevent works on or upon the ground. Further, the Trust submitted, in the case of Easement C dealing with "Works (Mounded)", that there was nothing to prevent Sydney Water from making the mound higher than it was.
61The primary judge held at [51] that:
"in context, the words 'at', 'on' or 'upon' are substantially interchangeable and are reinforced by the words 'but not above' to indicate that there is to be no substantial projection above the surface."
The primary judge was correct so to conclude.
62Registered Memorandum AG277407 is to be construed as a whole. It comprises four Schedules, in each of which terms defined in cl 1 are applied. The four schedules describe different kinds of easements, although in many respects the rights and liabilities associated with each easement are similar. Each Schedule commenced with an explanatory note, but in accordance with cl 1.2, Sydney Water placed no reliance on the notes, and I pass over them.
63Different language in a legal document ordinarily conveys different meaning. In Schedules which appear in the same instrument, which form part of a series of contiguous acquisitions for the same purpose - making provision for a pipeline from the desalination plant at Kurnell to inner Sydney - and which are structurally and textually very similar, textual differences are especially significant. As Blackburn J said in Hadley v Perks (1866) LR 1 QB 444 at 457:
"It has been a general rule for drawing deeds and other legal documents from the earliest times, which one is taught when one first becomes a pupil to a conveyancer, never to change the form of words unless you are going to change the meaning ..."
64The basal textual difference between each Schedule is that each deals with a different defined term: "Works", "Works (Mounded)", "Water Supply Works" and "Works (Trenched)". Water Supply Works are referable to works which are situated in the Land in Stratum, and so are not defined by reference to any surface. The remaining three, which are referable to the surface of the Land, are remarkably similar. It may assist to reproduce them below, removing the emphasis given to defined terms in the original, and replacing it with emphasis which points to what in each is different:
"Works means any infrastructure works used for water supply purposes situated upon, above or below the surface of the Land and includes without limitation any pipelines, mains, scourlines, overflow pipes and distributary, reticulating and other ancillary works and associated fittings, and includes signs providing notice, warnings, restrictions or information about the Works.
Works (Mounded) means the water supply pipeline used for water supply purposes situated within the mound which together are at, upon, above or below the surface of the Land, provided however the water supply pipeline is not above the surface of the mound and includes without limitation associated fittings for the water supply pipeline, including scourlines, overflow pipes and distributary, reticulating and other ancillary works provided however these are not above the surface of the mound, and includes signs providing notice, warnings, restrictions or information about the Works (Mounded).
Works (Trenched) means any infrastructure works used for water supply purposes situated at, upon, on or below but not above the surface of the Land and includes without limitation any pipelines, mains, scourlines, overflow pipes and distributary, reticulating and other ancillary works and associated fittings, and includes signs providing notice, warnings, restrictions or information about the Works (Trenched)."
65The different physical limitations upon each definition (and therefore, upon the rights and liabilities in the Schedule when read with the defined term) may readily be appreciated:
(7)"Works" may be upon, above, or below the surface of the Land.
(8)"Works (Trenched)" may be at, upon, on or below but not above the surface of the Land.
(9)"Works (Mounded)" must be within "the mound". The mound (containing the Works (Mounded)) must be at, upon, above or below the surface of the Land.
66Compare and contrast, "Works" and "Works (Trenched)". Given the elaborateness of the definitions and their substantial similarity, it must be the case that a deliberate distinction is drawn between the generality of "upon, above or below" and "at, upon, on or below but not above" to define, in each case, the relationship between the works and surface of the Land.
67The natural distinction between the collocations of prepositions is that Works may extend above the Land's surface, but "Works (Trenched)" may not. It may be accepted that the words "at", "upon" and "on" are capable of bearing a ranges of meanings in connection with the surface of Land. What matters however is not the range of individual meanings which those prepositions may bear in various contexts, but instead the particular meaning which they bear, when considered as a whole, in this context. Two things are decisive here. The first is that the potentially general prepositions "at", "upon" and "on" are accompanied by a negative limitation upon their scope, by the words "not above". The second is that the question of what if the works are partly above and partly below the surface of the Land is readily answered in this context: that is dealt with by "Works (Mounded)".
68Compare now "Works (Mounded)" and "Works (Trenched)". The same words of limitation "not above" are used in each, but in the former, the Works (Mounded) must not extend above the surface of the mound, as opposed to not extending above the surface of the Land.
69In other respects, putting to one side that "Works (Trenched)" is a broader term (any infrastructure works) while "Works (Mounded)" is confined to the water supply pipeline, substantially the same prepositions are used in the same way: "at, upon, on or below but not above the surface of the Land" and "at, upon, above or below ... [but] not above the surface of the mound". (For completeness, I note that because Works (Mounded) contemplates a mound whose surface is higher than the surface of the Land, the latter also includes "above the surface of the land" but this is plainly limited by "not above the surface of the mound". The inclusion of that additional prepositional phrase does not detract from the similarity in both definitions of the expression "at, upon, below but not above").
70The similarity in the collocations of prepositions is striking. I accept one definition includes "upon" and "on" while the other merely includes "on", but that does not materially detract from the otherwise close resemblance. Such similar language in the same document should ordinarily be given the same legal meaning.
71All this makes sense when the relationships between the definitions are considered. Works (Trenched) are wholly below the surface of the land. Works (Mounded) are wholly below the surface of the mound, and are wholly within the mound, although they may be above the surface of the Land. Works may, in contradistinction, be above the surface of the Land. Those terms reflect, obviously enough, the different forms of easement appropriate for the various stages of the same pipeline.
72Further, the foregoing is confirmed by the labels used on the deposited plan to which reference is made in the Acquisition Notice: "trenched easement" and "mounded trafficable & road crossing easement".
73So far, I have put to one side the meaning-laden defined terms themselves: "Works", "Works (Mounded)" and "Works (Trenched)". It is not necessary to rely upon them in order to resolve these grounds. However, as Lord Hoffmann said in Chartbrook Ltd v Persimmon Homes Ltd [2009] UKHL 38; [2009] 1 AC 1101 at [17]:
"The words used as labels are seldom arbitrary. They are usually chosen as a distillation of the meaning or purpose of a concept intended to be more precisely stated in the definition."
74As noted in Barangaroo Delivery Authority v Lend Lease (Millers Point) Pty Ltd [2014] NSWCA 279 at [11], criticism has been expressed of this mode of reasoning in a statutory context in Owners of the Ship 'Shin Kobe Maru' v Empire Shipping Company Inc (1994) 181 CLR 404 at 419, but it seems wholly artificial to exclude from the analysis the evocative language which the acquiring authority chose to describe four types of easements contained in the one instrument, created for the purpose of a single pipeline. As Basten JA said in Tovir Investments Pty Ltd v Waverley Council [2014] NSWCA 379 at [20], it seems unlikely that the mode of reasoning in Chartbrook was intended to be universally rejected. In any event, reliance on the defined term has recently been placed by this Court in Streller v Albury City Council [2013] NSWCA 348; Aust Torts Reports 82-146 at [43]; Horsell International Pty Ltd v Divetwo Pty Ltd [2013] NSWCA 368 at [159] and Mount Bruce Mining Pty Ltd v Wright Prospecting Pty Ltd [2014] NSWCA 323 at [39], [47] and [103].
75Those terms confirm what may be derived from the differing use of the collocations of prepositions and the labels used in the deposited plan. On the one hand, works that are trenched are buried in a trench below the surface of the ground. On the other hand, if the works extend above the original surface of the ground, but the surface has itself been raised so as to cover them, they are mounded. If they are physically above the (possibly altered) surface of the land, then they are neither trenched nor mounded.
76The Trust acknowledged, properly, that the words "but not above" should be construed so as to perform some work. The proffered solution, that Works (Trenched) did not include works suspended above the ground, is unattractive when seen in a context which includes distinctly worded definitions of Works, Works (Mounded) and Works (Trenched).
77The primary judge also referred to, but did not give dispositive weight to, the facts that the pipeline had been constructed at the time the easements were acquired, and that it was below the surface of the Land in the area of Easement A and D, and in a mound in the area of Easement C. The general rule is that materials outside the Torrens register may not be used in construing registered instruments such as an easement, but that does not rule out reliance on evidence of the physical characteristics of the land: Sertari Pty Ltd v Nirimba Developments Pty Ltd [2007] NSWCA 324; (2008) NSW ConvR 56-200 at [15]; Hare v van Brugge [2013] NSWCA 74; 84 NSWLR 41 at [16]-[18]. As the primary judge observed, the physical features of the land, and the fact that the pipeline was constructed before the easement was acquired, merely confirm the conclusion reached from the language. It is not necessary to take the analysis any further. These grounds of appeal must be dismissed. So too must ground 4 to the extent that it complains of the primary judge having regard to the physical works.