A national survey of lead and other metal(loids) in residential drinking water in the United States. This dataset is not publicly accessible because: EPA cannot release personally identifiable information regarding living individuals, according to the Privacy Act and the Freedom of Information Act (FOIA). This dataset contains information about human research subjects. Because there is potential to identify individual participants and disclose personal information, either alone or in combination with other datasets, individual level data are not appropriate to post for public access. Restricted access may be granted to authorized persons by contacting the party listed. It can be accessed through the following means: Contact bradham.karen@epa.gov. Format: The data set includes data that EPA generated for Pb concentrations from drinking water samples collected by HUD and HUD's contractor along with housing characteristics, general location information, and socioeconomic data provided by HUD. The journal article includes data that has been reviewed and approved by HUD for publication as they are co-authors. In order to protect sensitive information, the only data that will be publicly available is included in the journal article and supporting information.