❓ Question on Notice regarding the impact of Tier 3 water charges on residential customers using over 500kL annually, including customer numbers, revenue raised, and analysis of household size impacted. The Water Corporation provided data in a tabled paper and referenced the H2ome study.
AnsweredQoN 199Legislative Council
QuestionView source ↗
Since the introduction of the Tier 3 water charges for Water Corporation residential customers using over 500 kilolitres (kL) of water annually, I ask, for each year since the introduction of the Tier 3 charge: (a) how many residential customers have been charged for using more than 500kL of water: (i) by suburb; and (ii) in total; (b) how much revenue has been raised from customers using more than 500kL of water: (i) by suburb; and (ii) in total; and (c) has Water Corporation carried out any analysis on the size of households, by number of residents, impacted by the Tier 3 water charges?
AnswerView source ↗
Answered
12 August 2025
Responded by
Leader of the House representing the Minister for Water
Response time
9 days
(a) and (b) See tabled paper No. #
(c) Yes. Water Corporation has conducted extensive research into attitudes, understanding, and water use of all household typologies in Perth most recently the national award winning H2ome study in 2018-2023. See link H2OME project helping households adapt to climate change | Western Australian Government
(c) Yes. Water Corporation has conducted extensive research into attitudes, understanding, and water use of all household typologies in Perth most recently the national award winning H2ome study in 2018-2023. See link H2OME project helping households adapt to climate change | Western Australian Government
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