The Environmental Protection Agency (EPA) is preparing to solicit proposals for a project focused on assessing the ecological and human health risks associated with contaminants found in water, fish, sediments, and microbial pathogens in surface waters. This presolicitation notice indicates the agency's intent to gather information and insights regarding the potential impacts of these contaminants, which are critical for environmental protection and public health. The findings from this project will play a vital role in informing regulatory decisions and environmental management strategies. Interested parties can reach out to Kimberly Foster Loesch at Loesch.Kimberly@epa.gov for further details, noting that this is a presolicitation notice and no contract will be awarded at this stage.