What factor does NOT influence the supply of groundwater?

Household needs do not directly influence the supply of groundwater. The supply of groundwater is primarily determined by natural factors and the physical characteristics of the water system. Surrounding wells affect the local groundwater levels, as they can draw from the same aquifer. Pumping equipment is a factor in the extraction of groundwater, determining how effectively water can be drawn from the aquifer. The configuration of an aquifer, including its size, shape, and permeability, directly impacts how much groundwater is available. While household needs may impact demand for water, they do not modify the natural supply itself.