 The reservoir, which forms part of the Nant Fawr corridor, has been redundant since the 1970s and has only been used for leisure purposes and for 'topping up' the adjacent Lisvane Reservoir.The reservoir is listed as a Site of Nature Conservation Interest (SNCI) as it has pondweed and stonewort, and common toads breed there.The grassland and scrub surrounding the reservoir is also an SNCI due to the grass snakes and slowworms there.