CONCEPTUAL MODEL TO MEASURE THE SUSTAINABILITY OF DOMESTIC RAW WATER SUPPLY FROM MIXED SOURCES

Abstract

The domestic water mix is basically the use of renewable sources of raw water such as rain
water and recycled gray water to be mixed with existing raw water sources, such as surface water, springs,
and ground water, which are in critical condition. To find out the level of sustainability of raw water supply
for drinking water using the Domestic Water Mix approach it is necessary to formulate a conceptual model to
measure it. The main objective of the research is to formulate a conceptual model to measure the
sustainability of raw water supply using the Domestic Water Mix approach. This research is exploratory in
nature, more in the form of literature review relating to drinking water raw water, governance, and the
process of its utilization and supporters. The result of this study shows that the conceptual model to measure
the sustainability of water supply raw water using the Domestic Water Mix approach consists of 5 stages of
measurement, namely: (1) problem identification; (2) assign key attributes; (3) WTP analysis; (4) formulating
a model with a systems approach; and (5) mechanism of institutional cooperation. The method used in each
stage is adjusted to the objectives of each stage, namely: (1) Multidimensional Scaling (MDS) & Monte
Carlo; (2) Analytic Network Process (ANP); (3) Willingness To Pay (WTP); (4) Dynamic System; (5)
Interpretative Structural Modeling (IMP).