Recently, increased water demand and frequent droughts caused severe water shortages in South Korea. Thus, reusing the reclaimed
water is receiving attention as an alternative water source rather than depending on the conventional water supply. In South Korea, three
types of water reuse are mainly applied, such as rainwater reuse, gray water reuse and wastewater reuse. In this study, the wastewater
reuse was analyzed since the amount of treated wastewater is relatively constant over the year and typically the water quality is
acceptable for reuse. In Yongin-si, there are 26 golf clubs, which is about 10% of entire facilities currently operating in South Korea.
The golf courses consume significant amount of water for landscaping; thus, if the reclaimed water used, the economic, social and
environmental benefits would be tremendous. This study estimates the economic benefits and costs when supplying the reclaimed
wastewater for landscaping of golf courses as a case study in Yongin-si.