Results of a recent groundwater salinity sampling program of the Robinson Lens have revealed that the current procedure of using a bailer to obtain salinity samples yields inaccurate results, and that the salinity in this aquifer may be much higher than previously measured. More than half of the observation wells display an increase in borehole salinity with depth. For example, a bore situated in close proximity to one of the supply trenches exhibits a salinity increase of more than 7000 electrical conductivity units over a 2 m interval. However, we are not certain whether or not the increase in borehole salinity reflects the actual groundwater salinity in the aquifer. The monitoring wells urgently need to be purged of silt and stagnant water that has accumulated since the completion of drilling. Pumped samples from the cleared wells will then be able to provide accurate data about salinity distributions in the aquifer which will aid future management of the resource.