Abstraksi
The service system of clean water network in Pontianak provided by state water company (PDAM Tirta Jaya) in average has high coverage across the city. Yet, some parts of the community are still left behind and requires a serious attention. This study aims to reveal which part of the community received the least service, their current coping mechanism and identify the potential solutions that PDAM or local community might be able to execute at an efficient level of cost. We utilize various data set related to water, PDAM customer database, socio-economic background and spatial related information. Based on those, we identify that majority of low income households in sub-district Pontianak Utara do not have formal access for water provision by PDAM. Our finding on the behavior of non-piped water households confirms that these are the most vulnerable community and we propose an alternative solution by expanding the water supply network by building a water bank by utilizing the potential of rainwater and runoff especially access in the northern area of Pontianak City