Synthesized Domestic Well Database for the Conterminous United States

Self-supplied domestic water sources play a significant role in the United States' water landscape, serving approximately 13 percent of the nation's population as of 2015 (Dieter and others, 2018). However, these sources present unique challenges for water resource management and research due to the lack of monitoring, withdrawal location, and place-of-use data. To address this data gap, we have synthesized and subset various groundwater well compilations into a unified domestic well database to standardize information on well characteristics and locations across the United States (SynDWell-US). The database is presented in tabular form and includes domestic well records spanning from 1680 to 2024, encompassing 5,982,715 wells. The dataset includes well locations, construction information, and water-use categories. While the dataset aims to represent the conterminous U.S., coverage is limited to states with available digital data sources. Except where outlined in the process steps, data is presented as-is, with cross-verification and data validation having occurred in the parent datasets.