246 FORESTS, WOODS, AND TREES 
between 800 and 1450 feet elevation, about 23 miles 
to the west of Aberdare. 
Pwllfa reservoir, with a catchment area of 350 acres, 
between 1100 and 1550 feet elevation, about 3 miles to 
the south of Aberdare. 
The District Council do not own and have no control 
over these areas, which consist entirely of mountain land, 
mostly sheep pasture, and free from any habitations or 
farmsteads. The water is filtered. No special measures 
against contamination are taken on the gathering grounds. 
Llantrisant and Llantwitfardre Rural District Council obtain 
their water supply in part from (1) a gathering ground 
of 66 acres at Maendy, all moorland, and between 950 and 
1280 feet elevation; and (2) a gathering ground of 409 
acres at Llanillid, between 575 and 985 feet elevation, all 
moorland except 134 acres of arable land. There are 
no habitations or farfmsteads on the areas, which are not 
owned by the Council. The Llanillid water is filtered, and 
periodical inspection of both areas is made. 
