20260721 16584100 1.0 TRUE Groundwater Basins Without Well Spacing Requirements Major groundwater basin (aquifer) is defined as a distinct underground body of water overlain by contiguous land and having substantially the same geological and hydrological characteristics and from which groundwater wells yield at least fifty (50) gallons per minute on the average throughout the basin if from a bedrock aquifer and at least one hundred fifty (150) gallons per minute on the average throughout the basin if from an alluvial aquifer, or as otherwise designated by the Board.