Irrigation is used to negate the climatic irregularities of rainfall. The long term sustainability of such irrigation is dependent on maintaining the quality of irrigation water (i.e., low salt concentrations) and minimising excessive deep drainage, without which regional rises in water tables cause accretion of soluble salts in the rootzone. To prevent occurrences of secondary salinisation, baseline information should be collected and monitoring procedures need to be developed and implemented to continually assess the effects of irrigation. This project is aimed at developing soil salinity assessment techniques (primarily electromagnetic induction (EM) and geostatistical) for rapid, reliable and repeatable broadscale salinity assessment and monitoring purposes, specifically on a previously identified salt rich subsoil layer, (Triantafilis and McBratney, 1993).