Integrated Report of Surface Water Quality [303(d) List] Assessment Methodologies

Provided below are links to Maryland’s Assessment Methodologies (AMs) used in water body impairment determinations for the Integrated Report (IR) of Surface Water Quality. The AMs provide a consistent logical framework for r​eviewing water quality data. The public is invited to comment on any of the assessment methodologies during the public comment period for the Integrated Report.  

All files below are in portable document format (PDF).