Every data set comes with some level of error. Zooplankton data for the Great Lakes region were obtained from the U.S. Environmental Protection Agency Central Data Exchange (CDX): https://cdx.epa.gov/, Great Lakes Environmental Database System (GLENDA). biological components of the Great Lakes and coastal ecosystems supports studies and assessments, @media all and (min-width: 992px) { [Black River] } The data collected are used to inform forecast function submitForm(){ Data obtained from the EPA BEACON 2.0 website have been provided to EPA by the coastal and Great Lakes states, tribes and territories that receive grants under the BEACH Act. Memos font-size: 14px; Charts NOAA.