The Great Lakes National Program Office (GLNPO) collects environmental data on a wide variety of constituents in water, biota, sediment, and air. After these studies are completed, the data remain. Central to the data management effort is a computerized relational database system to house Lake Michigan Mass Balance and other project results. The Great Lakes Environmental Database (GLENDA) was developed to provide data entry, storage, access and analysis capabilities to meet the needs of mass balance modelers and other potential users of Great Lakes data. The GLENDA Data Exchange provides data services that can be used by Partners to retrieve substance information from the GLNPO system based upon a variety of identifiers and substance characteristics.

The GLENDA Data Exchange is now available here.

Kenneth Klewin
U.S. Environmental Protection Agency
312.886.4794
klewin.kenneth [at] epa.gov