Fig. 4
Distribution of water use records across categories in the United States Water Withdrawals Database (USWWD). Horizontal bars show record counts (displayed at bar ends) on a logarithmic scale, ordered by sector and frequency. Irrigation - Crop has the highest count (3,861,164), while Sewage Treatment has the lowest (3,458). Power - Other includes multiple power uses, minor categories (e.g., solar), and unspecified power records. Other represents multiple uses or uncategorized records, while Unknown comprises state-designated unknown or missing use types.
