Since aged water treatment facilities could threaten the sustainable water supply, asset management system has been adopted for their systematic management. Level of Service(LoS) is one of critical components of asset management and could be quantified through benchmark index(BMI). Water supplier could estimate consumer’s satisfaction and their performance through BMI to improve the LoS. We developed BMI for water treatment facilities from customer’s satisfaction survey. BMI, represented with the Total Service Score(TSS), was assessed with water quality, water pressure, taste and odor, water rate, and service quality with weighing factors. BMI could, further, be used to assist the analysis of the life cycle cost to increase the unit of LoS.

• 남영욱(단국대학교) | Youngwook Nam (Dankook University)
• 현인환(단국대학교) | Inhwan Hyun (Dankook University)
• 이철성(단국대학교) | Chulsung Lee (Dankook University)
• 천민규(단국대학교) | Mingyu Chun (Dankook University)
• 김민철(서울시립대학교) | Mincheol Kim (University of Seoul)
• 김두일(단국대학교) | Dooil Kim (Dankook University) Corresponding author