The Athabasca Arctic (AA) Watershed uses a data-management system called ACBIS (Aquatic Chemistry and Biology Information System) to store, track, verify, and distribute data to clients. The system consists of a relational database and a database application. The application is a multi-user application. The entire system has been fully implemented in the Prairie and Northern regions since 1998 without major revision. Its users include project managers, field personnel, and internal staff. As of August 2015, the database contains approximately 3.5 million records and encompasses over 1,550 variables for approximately 107,000 samples from both the AA and Hudson Bay (HB) Watersheds. The data span from the 1960s to the present and sample types include water quality, sediment, semi-permeable membrane devices (SPMDs), and fish samples. The estimated value of ACBIS exceeds 100 million dollars.