Divers are monitoring water levels in six locations across Kerry.
Irish Water and Kerry County Council are deploying divers, in an effort to gather information in relation to water supplies in lakes around the county.
Divers are investigating if pipes are suitably positioned following the drought conditions to ensure adequate amounts of water reach inlet points.
They are also examining if any leaks need to be repaired on site.
Furthermore, the volume of water available to Irish Water for production is also being measured, which is needed to plan for the weeks ahead as drought conditions continue.
Lough Guitane, which serves Tralee and Killarney, is a major focus for Irish Water, as the new water treatment plant is due to come into operation imminently.
Irish Water says, while recent rainfall has led to a slight recovery in levels, it will take sustained rainfall over many weeks to fully replenish raw water sources.