Llyn Brianne 4
The reservoir has a total rainfall catchment area of 88 km2 (34 sq miles) and an annual rainfall of some 1800 mm (71 ins). Its estimated yield is optimistically described as being about 416 Megalitres/day (92 mg).
The reservoir has a
total rainfall catchment area of 88 km2 (34 sq miles) and an annual rainfall of
some 1800 mm (71 ins). Its estimated yield is optimistically described as being about 416
Megalitres/day (92 mg).