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how to save water

About your water

Reservoir Levels


2020 has been our driest spring since 1929. In the spring of 2019 we experienced 297mm of rainfall, this spring we only had 126mm – a reduction of almost 60%. Since the beginning of lockdown, NI Water has seen a significant rise in the amount of water used in the home.

How we all use our water now will have a massive impact on water levels during the summer months. We want everyone to enjoy their home and garden, we just need people to think about how they use their water and if what they are doing is essential.

Click on the map below for information on water supply in that area.

There are two types of reservoirs, an impounding reservoir and a service reservoir. An impounding reservoir is water we collect from the environment for example, rain. Service reservoirs are underground and they hold treated water from the water treatment works ready for your tap. Half of our water supply comes from our 24 impounding reservoirs and some of our water is taken from natural loughs, rivers and boreholes.

If a reservoir for your area does not appear on the map that means your water comes from natural loughs, rivers and boreholes. Although these might be more reliable sources, they are still low in water given the current dry weather, so it is important to save water where you can and reduce your normal usage. For water saving tips visit -

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