(1)
Subregulation (2) applies to the extent to which the quantity of water or
wastewater supplied to or discharged or drained from land is not accurately
measured by a meter because of one of the following circumstances or a similar
circumstance —
(a) the
meter is not functioning properly;
(b) the
meter has been removed, for whatever reason;
(c) the
meter cannot be read because a physical obstruction, adverse weather or other
unforeseen circumstance prevents access to the meter.
(2) For the purposes
of calculating a water service charge for the supply of water to land or the
discharge or drainage of water or wastewater from land, the Water Corporation
may estimate the quantity of water or wastewater supplied, discharged or
drained in accordance with one or more of the following
paragraphs —
(a) by
adjusting the quantity registered by the meter to take account of an error
found on testing the meter;
(b) by
deducting from the volume of water supplied to the land, or a particular part
of the land, an allowance for the volume of water supplied that was not
discharged;
(c) in
the case of water supplied for irrigation — by reference to the
rate of flow and the period of supply;
(d) by
reference to historical data relating to the quantity of water supplied to the
land;
(e) by
reference to historical data relating to the discharge of wastewater from the
land;
(f) by
reference to typical quantities of water or wastewater supplied to, or
discharged or drained from, land of that type.
(3)
Subregulations (1) and (2) also apply to a supply of water made
other than in respect of land, to the extent to which they are relevant.
(4) If water supplied
for irrigation is not supplied through a meter then, for the purposes of
calculating a water service charge for the supply of the water, the Water
Corporation may estimate the quantity of water supplied by reference to the
rate of flow and the period of supply.
(5) This regulation
does not apply in relation to the calculation of water service charges for the
discharge of trade waste.