Papers published in KSWW are archived not only in the KoreaScholar database (https://db.koreascholar.com/) contracted with the Korean Society of Water and Wastewater but also in the databases operated by the Korean government, including the Korea Citation Index (https://kci.go.kr). To prepare for the event of journal closure or loss of online databases, printed copies of all issues of KSWW are archived at the National Library of Korea (https://www.nl.go.kr) and the National Assembly Library (https://www.nanet.go.kr).