GHCMA Regional Groundwater Flow Systems

Location and description of regional groundwater flow systems (RGFS) within the Glenelg Hopkins Catchment Management Authority region.andnbsp; RGFS are typically greater than 50 km from recharge to discharge, can be thicker than 300m, and may not show signs of salinity for more than 100 years (may be quicker for rivers) after agricultural disturbance.andnbsp; Requires widespread community involvement, and larger engineering measures to mitigate salinity issues. Typically occur as laterally extensive aquifers.