Other confined aquifers exist in Southland but are not specifically acknowledged in regional plans due either small size or limited resource use. The Lumsden and North Range aquifers are situated in Quaternary age alluvial deposits. These accumulations of gravel, sand, silt and clay were lain down by rivers many years ago and are now buried below the earth surface. These aquifers are classed as confined as they are interpreted to have a layer of relatively impermeable earth separating the water in the aquifer from the land surface. For more information about these aquifers please contact Environment Southland.
