Michigan Dept. of Environment, Great Lakes, and EnergyNote that this data has been marked as deprecated. To utilize the most recent data, please search assessment 2024 on our Open Data Portal . The 2022 Integrated Report is a biennial publication on the quality of Michigan's water resources. The Clean Water Act (CWA) requires Michigan to prepare a biennial report on the quality of its water resources as the principal means of conveying water quality protection/monitoring information to the United States Environmental Protection Agency (USEPA) and the United States Congress. The Integrated Report satisfies the listing requirements of Section 303(d) and the reporting requirements of Section 305(b) and 314 of the CWA. The Section 303(d) list includes Michigan water bodies that are not attaining one or more designated use and require the establishment of Total Maximum Daily Loads (TMDLs) to meet and maintain Water Quality Standards. It should be noted that these comprehensive datasets include assessment units throughout the state of Michigan and are not limited to those on the Section 303d list. The 303d status of an assessment unit is indicated in the EPA303dImpairment field, with 0 as not listed and 1 as listed. Further information, including a comprehensive 303(d) list, can be found on EGLE's Integrated Report webpage.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/7fc78cd7dc7d414dbfc839e2e95306f3_1engPublicAssessment Units 2022 - Rivers and Streams [Michigan]Web servicesMichigan2022