Drinking Water Infrastructure Needs Survey and Assessment

The Drinking Water Infrastructure Needs Survey and Assessment (DWINSA) is a report prepared by the United States Environmental Protection Agency (EPA) to evaluate the financial requirements for the nation's drinking water infrastructure over the next two decades. The 7th iteration of this survey includes comprehensive assessments from both state and tribal perspectives, revealing a total capital improvement need of approximately $629.1 billion. This figure encompasses $625 billion for states and Puerto Rico, $4.1 billion for tribal systems, with specific allocations for American Indian and Alaska Native Village systems. The report is based on data collected from a statistical survey of 3,924 public water systems across all states and territories, achieving a 97% response rate. This high response rate enhances the reliability of the findings, which also address critical issues such as lead service lines and workforce challenges in the water sector. The DWINSA serves as a crucial tool for guiding funding distribution through the Drinking Water State Revolving Fund (DWSRF).