Western Australian Current Regulations Western Australian Current Regulations (1) In this
regulation —
Australian Height Datum means the Australian
Height Datum described in the Division of National Mapping Technical Report
No. 12, The Adjustment of the Australian Levelling Survey, 1970‑71 (2 nd
edition, 1975);
Geocentric Datum of Australia 2020 means the
Reference Frame as defined in the National Measurement (Recognized‑Value
Standard of Measurement of Position) Determination 2017 (Commonwealth)
Schedule 1;
map coordinates means the Map Grid of
Australia 2020 rectangular coordinates derived from a Universal
Transverse Mercator projection of latitudes and longitudes based on the
Geocentric Datum of Australia 2020.
(2) A mine survey plan
of an underground mine must be prepared and maintained by or under the
supervision of an authorised mine surveyor (underground).
(3) A mine survey plan
of a mine where a quarry operation is carried out must be prepared and
maintained by or under the supervision of an authorised mine surveyor (quarry
operation).
(4) A survey carried
out for the purpose of preparing a mine survey plan of a mine where an
underground operation or quarry operation is carried out must be
completed —
(a)
using instruments and technologies that are fit for purpose; and
(b) to a
standard that accords with good engineering practice and that is to an
accuracy of not less than 1:5 000 or an accuracy permitted by the
regulator.
(5) A person who
carries out a survey for the purpose of preparing the mine survey plan must
establish, in the general vicinity of the mine, a datum station which is to
serve as the origin for the survey and the coordinate system used.
(6) The position of
the datum station must be established in terms of the map coordinates and the
Australian Height Datum.
(7) A person who
carries out a survey for the purpose of preparing the mine survey plan must
ensure that if a local grid system is used for mine surveying and management
the relationship between that grid system and the map coordinates in terms of
distance and with respect to true bearing is established.
(8) The mine survey
plan must show the following —
(a)
sufficient details of the workings and other features so that risk due to lack
of information, so far as is reasonably practicable, is minimised;
(b) all
features, including boreholes, that are necessary to identify any hazard or
are necessary to deal with an emergency;
(c) a
certification —
(i)
by the authorised mine surveyor who prepared the plan, or
supervised the preparation of the plan, that the plan is correct; and
(ii)
that is in, and includes information required by, an
approved form.
(9) The mine operator
of a mine must take all reasonable steps to obtain historical mine surveys of
the mine to ensure the accuracy of the mine survey plan.
[Regulation 675TA amended: SL 2023/134
r. 16.]