Water boundaries and erosion
Note: this guideline is issued by the Surveyor-General under section 7(1)(ga) of the Cadastral Survey Act 2002 about the Rules for Cadastral Survey 2010 and is not legally binding.
The following information relates to recording a water boundary in a CSD where erosion affecting the water boundary has occurred.
Where erosion has occurred, the Diagram of Survey and Diagram of Parcels must depict:
- the erosion as a separate residue parcel, which must be described as erosion without any other description or appellation [r 9.6.3(h)(iii) and r 10.4.2(f)(iii)]. An area is not required,
- the water boundary in its new position as an irregular line at a scale that clearly shows its shape and relationship to other boundaries [r 9.6.7(a)(i) and r 10.4.5(a)],
- the former water boundary as an accepted irregular line boundary [r 6.3(b) and r 6.7(c)], and
- the name or a simple description (such as sea, stream, river, or lake) for the water body that abuts the new erosion parcel r 9.6.3(h)(iv) and r 10.4.2(f)(iv)]
The erosion parcel must have the parcel intent hydro.

Refer to Where current MHWM is inland from old MHWM because of erosion
Last Updated:
31 March 2017
LINZ OP G :
00049