In this study, sustainable utilization plans were proposed by reviewing the current status and problems of water infrastructure, focusing on water supply and sewage system in Chungcheongnam-do. Due to the regional characteristics of the rural areas in Chungcheongnam-do which has a very low urbanization rate, there is a difference in the level of water welfare services between local governments. Compared to other governments, there are relatively many small water facilities, resulting in a service imbalance in terms of tap water safety. In addition, Chungcheongnam-do has a structure that is very vulnerable to water security to cope with climate change and drought due to its high dependence on wide-area water supply. Therefore, it should be considered in consideration of population reduction and local extinction due to low birth rate and aging population. Rural areas should clearly establish marginal areas for the supply of water and sewage, and implement regional customized water and sewage projects in consideration of local extinction. Water supply projects should be implemented in a distributed water supply method using various water sources. In order to respond to climate change and establish water security, a distributed water supply system should be established through a multi-source water loop system using various water sources. Sewage projects should be establish public sewage treatment facilities in consideration of the priorities of each local government, focusing on local governments with low sewage treatment population rates. In consideration of regional characteristics, it is necessary to consider the installation of private sewage treatment facilities or nature-friendly treatment facilities such as soil infiltration and artificial wetlands. An integrated management system using Internet of Things(IOT) or Information and Communications Technology(ICT) should be established and operated to improve the operation and management efficiency of small-scale water supply and sewage facilities.

1. 서 론
2. 충청남도 물인프라 현황
    2.1 상수도 현황
    2.2 하수도 현황
3. 충청남도 물인프라의 한계와 문제점
    3.1 지역 간 물인프라 불균형 발생
    3.2 상⋅하수도 인프라 확대의 한계
    3.3 기후변화에 따른 물안보 취약성 증가
4. 지속가능한 물인프라 이용방안
    4.1 상⋅하수도시설 확충 및 이용방식 전환
    4.2 기후변화 대응 및 물안보 확립을 위한 수원다변화
5. 결 론

• 김영준(충남녹색환경지원센터 기업지원팀) | Youngjun Kim (Department of Corporate Support Team, Chungnam Green Environment Center)
• 이상진(충남연구원 공간환경연구실) | Sangjin Lee (Department of Space and Environment Research, Chungnam Institute)
• 김영일(충남연구원 물환경연구센터) | Youngil Kim (Department of Water Environment Research Center, Chungnam Institute) Corresponding author