❓ A WA parliamentary question on notice regarding the Department of Water and Water Corporation's water consumption target of 155 kilolitres per person per year, its derivation, components, and inclusion of garden water usage. The Minister's response provides details on the target's basis and the impact of water restrictions.
AnsweredQoN 840Legislative Council
QuestionView source ↗
WATER CONSUMPTION TARGET
I refer to the 155 kilolitre per person per year water consumption target used by the Department of Water and the Water Corporation in their forward planning for water source development. (1) How is this target figure derived? (2) What are the specific constituent components for domestic and non-domestic use? (3) Does this target amount include water used on gardens? (4) If no to (3), where is garden watering accounted for in relation to water use planning? (5) If yes, what amount and proportion is used on gardens? Hon KIM CHANCE
I refer to the 155 kilolitre per person per year water consumption target used by the Department of Water and the Water Corporation in their forward planning for water source development. (1) How is this target figure derived? (2) What are the specific constituent components for domestic and non-domestic use? (3) Does this target amount include water used on gardens? (4) If no to (3), where is garden watering accounted for in relation to water use planning? (5) If yes, what amount and proportion is used on gardens? Hon KIM CHANCE
AnswerView source ↗
I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(1) How is this target figure derived? (2) What are the specific constituent components for domestic and non-domestic use? (3) Does this target amount include water used on gardens? (4) If no to (3), where is garden watering accounted for in relation to water use planning? (5) If yes, what amount and proportion is used on gardens? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(2) What are the specific constituent components for domestic and non-domestic use? (3) Does this target amount include water used on gardens? (4) If no to (3), where is garden watering accounted for in relation to water use planning? (5) If yes, what amount and proportion is used on gardens? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(3) Does this target amount include water used on gardens? (4) If no to (3), where is garden watering accounted for in relation to water use planning? (5) If yes, what amount and proportion is used on gardens? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(4) If no to (3), where is garden watering accounted for in relation to water use planning? (5) If yes, what amount and proportion is used on gardens? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(5) If yes, what amount and proportion is used on gardens? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(1) How is this target figure derived? (2) What are the specific constituent components for domestic and non-domestic use? (3) Does this target amount include water used on gardens? (4) If no to (3), where is garden watering accounted for in relation to water use planning? (5) If yes, what amount and proportion is used on gardens? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(2) What are the specific constituent components for domestic and non-domestic use? (3) Does this target amount include water used on gardens? (4) If no to (3), where is garden watering accounted for in relation to water use planning? (5) If yes, what amount and proportion is used on gardens? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(3) Does this target amount include water used on gardens? (4) If no to (3), where is garden watering accounted for in relation to water use planning? (5) If yes, what amount and proportion is used on gardens? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(4) If no to (3), where is garden watering accounted for in relation to water use planning? (5) If yes, what amount and proportion is used on gardens? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(5) If yes, what amount and proportion is used on gardens? Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
Hon KIM CHANCE replied: I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
I thank Hon Paul Llewellyn for the question. (1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(1) The 155 kilolitre per person per annum target is a significant, but realistically achievable, water saving from the 2000-01 demand of 185 kilolitre per person per annum. These figures are based on the water supplied to metropolitan Perth, divided by the metropolitan population. The 155 kilolitre target for the year 2012 in the state water strategy is based on the anticipation that the community can achieve a reduction in unrestricted demand equivalent to the reduction achieved through the two-day a week sprinkler roster. (2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(2) No specific targets are set for residential and non-residential use. However, residential consumption constitutes 70 per cent of all scheme water consumed in the Perth metropolitan area. (3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(3) Yes. (4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(4) Not applicable. (5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
(5) Garden usage constituted 54 per cent of scheme water used by residences prior to restrictions; that is 38 per cent of all scheme water used. It has been estimated that this has reduced to 33 per cent with the imposition of the two-day per week sprinkler roster.
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