12 Southern 8 24 mostly term likely moderate moderate Most monitored catchments appear Zone of stable to be approaching equilibrium but there are some bores with significant Drainage rates of groundwater level rise adjacent to valley hazard areas, so an expansion of the area affected by salinity is likely. Localised impacts are expected to be moderate as fresh to brackish groundwater resources occur. The moderate salinity risk in this zone is likely to be realised within the next 20 years. 13 Eastern 2 3 mostly medium almost minor moderate Stable groundwater trends have Darling stable term certain persisted for the last 10 years and Range much of the zone appears to be approaching a new hydrological equilibrium. However, a significant proportion of bores in areas of valley hazard show strong rising trends, despite lower than average rainfall. Furthermore, many bores in or adjacent to areas already affected show artesian heads. It is almost certain that the area affected by salinity will expand, though the additional area will not be great and hence the impact is assessed as minor.
12 Southern Zone of Drainage 8 24 mostly stable term likely moderate moderate Most monitored catchments appear to be approaching equilibrium but there are some bores with significant rates of groundwater level rise adjacent to valley hazard areas, so an expansion of the area affected by salinity is likely. Localised impacts are expected to be moderate as fresh to brackish groundwater resources occur. The moderate salinity risk in this zone is likely to be realised within the next 20 years. 13 Eastern Darling Range 2 3 mostly stable medium term almost certain minor moderate Stable groundwater trends have persisted for the last 10 years and much of the zone appears to be approaching a new hydrological equilibrium. However, a significant proportion of bores in areas of valley hazard show strong rising trends, despite lower than average rainfall. Furthermore, many bores in or adjacent to areas already show artesian heads. It is almost certain that the area affected by salinity will expand, though the additional area will not be great and hence the impact is assessed as minor. affected
2.7%20Dryland%20salinity%20-%20Word.docx