Federally Supported Projects and Programs for Wastewater, Drinking Water, and Water Supply Infrastructure [Updated August 24, 2021] [open pdf - 1MB]
From the Introduction: "This report focuses on programs that support drinking water and wastewater infrastructure projects and also municipal and industrial (M&I) water supply projects and activities. This report generally does not address water projects and programs for irrigation, flood control, hydroelectricity, and recreation. However, in some cases [...], a federal program or agency (e.g., Reclamation and USDA) may primarily support one or more of these other objectives while providing some support for M&I activities, even if only incidentally. Other federal authorities (e.g., those of Reclamation and USACE [U.S. Army Corps of Engineers]) may be available to assist with the provision of emergency water and wastewater needs, such as improving access to water supplies during a drought. Such authorities are generally not discussed in this report."
CRS Report for Congress, R46471
Congressional Research Service: https://crsreports.congress.gov/