Abstract
Local governments in Perth, Western Australia, use groundwater to irrigate high value public open space. Due to a sustained decline in rainfall current groundwater extraction rates are unsustainable and are set to be reduced. We investigate the cost-effectiveness of different water efficiency improvement technology solutions. There is significant variation in the cost-effectiveness of different techniques, with the cost of water saved varying from a low of AUD 0.27 per kilolitre to as high as AUD 13.49 per kilolitre. In most cases the water efficiency solutions considered delivered water savings for less than the cost of the backstop technique–scheme water–which costs AUD 2.09 per kilolitre. For the case study area we find that 5, 10, and 15% saving in the volume of water used to irrigate public open space can be achieved for average per kilolitre water costs of: AUD 0.38, AUD 0.43, and AUD 0.62, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 92-96 |
| Number of pages | 5 |
| Journal | Urban Water Journal |
| Volume | 15 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2 Jan 2018 |
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The most cost-effective ways to maintain public open space with less water : Perth case study. / Mennen, Sonja; Fogarty, James; Iftekhar, Md Sayed.
In: Urban Water Journal, Vol. 15, No. 1, 02.01.2018, p. 92-96.Research output: Contribution to journal › Article
TY - JOUR
T1 - The most cost-effective ways to maintain public open space with less water
T2 - Perth case study
AU - Mennen, Sonja
AU - Fogarty, James
AU - Iftekhar, Md Sayed
PY - 2018/1/2
Y1 - 2018/1/2
N2 - Local governments in Perth, Western Australia, use groundwater to irrigate high value public open space. Due to a sustained decline in rainfall current groundwater extraction rates are unsustainable and are set to be reduced. We investigate the cost-effectiveness of different water efficiency improvement technology solutions. There is significant variation in the cost-effectiveness of different techniques, with the cost of water saved varying from a low of AUD 0.27 per kilolitre to as high as AUD 13.49 per kilolitre. In most cases the water efficiency solutions considered delivered water savings for less than the cost of the backstop technique–scheme water–which costs AUD 2.09 per kilolitre. For the case study area we find that 5, 10, and 15% saving in the volume of water used to irrigate public open space can be achieved for average per kilolitre water costs of: AUD 0.38, AUD 0.43, and AUD 0.62, respectively.
AB - Local governments in Perth, Western Australia, use groundwater to irrigate high value public open space. Due to a sustained decline in rainfall current groundwater extraction rates are unsustainable and are set to be reduced. We investigate the cost-effectiveness of different water efficiency improvement technology solutions. There is significant variation in the cost-effectiveness of different techniques, with the cost of water saved varying from a low of AUD 0.27 per kilolitre to as high as AUD 13.49 per kilolitre. In most cases the water efficiency solutions considered delivered water savings for less than the cost of the backstop technique–scheme water–which costs AUD 2.09 per kilolitre. For the case study area we find that 5, 10, and 15% saving in the volume of water used to irrigate public open space can be achieved for average per kilolitre water costs of: AUD 0.38, AUD 0.43, and AUD 0.62, respectively.
KW - Cost-effectiveness
KW - irrigation efficiency improvement
KW - public open space
KW - reduced groundwater availability
UR - http://www.scopus.com/inward/record.url?scp=85033710668&partnerID=8YFLogxK
U2 - 10.1080/1573062X.2017.1395896
DO - 10.1080/1573062X.2017.1395896
M3 - Article
VL - 15
SP - 92
EP - 96
JO - Urban Water Journal
JF - Urban Water Journal
SN - 1573-062X
IS - 1
ER -