It aims to help conserve, enhance and work with the natural environment.
Irish Water is today launching its national Biodiversity Action Plan.
It aims to help conserve, enhance and work with the natural environment in conjunction with local authorities at more than 1,700 water and wastewater treatment sites nationwide.
One project is an integrated constructed wetlands at Clonaslee which replaces a 1940s wastewater treatment plant.
The wetlands support some rare species of moth and sawfly, a variety of butterflies and damselfies as well as birds of conservation concern such as reed warbler and swallow.
Otter and stoat are also known to frequent the site.