Irish Water says it is monitoring supplies after "unseasonably dry" weather in March and April.
The utility says it is working with local authorities, contractors and others to safeguard the health and well-being of both staff and the public.
It is also working to ensure the continuity of critical drinking water and wastewater services.
Irish Water is also reminding people to follow the Health Service Executive's COVID-19 advice, and ensure frequent hand-washing.
In a statement, the utility says: "Irish Water continually monitors our water supplies around the country and we liaise regularly with Met Éireann to plan for prolonged periods of dry weather.
"March and April have been an unseasonably dry and the medium term forecast is for less than usual rainfall.
"While there are no immediate concerns we are continually monitoring the situation and we will react as appropriate to situations as they emerge."
It adds that since only essential services and businesses are operating - and with more people at home - there has been an impact on the pattern of water use.
It says it is too early to give a detailed break-down of usage, but it is 'encouraging' people to conserve water for essential purposes - such as hand-washing, cooking and sanitation - rather than for non-essential activities including watering gardens or power-washing.
"To safeguard water and wastewater services, Irish Water is encouraging people, in particular businesses, to conserve water where possible and to check for leaks and to turn off unnecessary water such as automatic flushers in any buildings which may be temporarily closed", it adds.