Sediment can be transported as suspended load (moves with the flow of the river) or as bedload (rolls along the riverbed) or can be deposited on the riverbed or bank. Sediment is naturally occurring and essential to supporting the ecological function of a water body. High sediment concentrations in...Read more

An estimated 6 million leaded service lines(link is external) deliver drinking water to households across the United States, and when these lines leach lead into drinking water, it poses a serious public health problem. In the midst of the COVID-19 pandemic, states and cities are working to issue...Read more

Low-income and minority communities often face disproportionately high pollutant exposures. The lead crisis in Flint, Michigan, has sparked concern about broader socioeconomic disparities in exposures to drinking water contaminants. Nitrate is commonly found in drinking water, especially in...Read more

The health risks of drinking water contaminants and the economic benefits of drinking water standards are typically assessed one chemical at a time, an approach that misses the health impacts of co-occurring contaminants in drinking water. In contrast, a cumulative risk framework has become common...Read more