Water depletion, the fraction of renewable fresh surface and groundwater available in a watershed consumptively used by human activities on annual, seasonal, and inter-annual time scales, for 15,091 watersheds delineated in WaterGAP3. Map A shows only annual depletion categories. In map B, seasonal and dry-year depletion are included; this increases by a factor of 15 the number of watersheds experiencing depletion of at least 75%.