1 Manganese Not widely spread As for iron 0.05 0.1 Sodium Same as chloride See chloride. Detrimental to certain irrigated crops. Especially sodium and chloride levels in the water. Applies when salinity is due mainly to sodium chloride. If other salts such as magnesium sulphate or sodium sulphate are present in appreciable quantities, concentrations should be reduced.
Level depends on type of feed.
Field Geologists' Manual. How to Become a Groundwater User Groundwater is a valuable resource which needs careful management to protect its quality and quantity. Like surface water, it can be depleted or polluted. Information is gathered from new and existing bores, both government and privately owned, to aid managing the resource. A Bore Construction Permit must first be obtained from the RWC before a water bore can be constructed.