Abstract
Waterworks is an important infrastructure institution indispensable when citizens live the good life. For the waterworks in Japan, 120 years or more has passed since the modern waterworks was laid in Yokohama City. Through the rapid spread and expansion in the rapid economic growth from the 1960s (second half of Showa 30s), the penetration rate of the waterworks as of 2008 has reached to about 97.5%. On the other hand, one of the most important issues on the service operation is the efficient renewal and reconstruction of the aging water supply facility. The water utility industry marks introduction an application of the "asset management" which the Ministry of Health, Labor and Welfare leads as the large scale environmental infrastructure improvement method which has not yet been experienced. This paper brings the trend of the water utility industry into view and considers the availability of the P2M technique application in the asset management.
