WATER CATCHMENT AREAS 203 
Dewsbury and Heckmondwike Waterworks Board obtain 
their water supply from four catchment areas as follows: 
Dunford Bridge Reservoir 1300 acres between 1100 and 1489 feet elevation. 
Upper and Lower Windle- 
den Reservoirs . APO De 55 _ TS Omes Lb OON ee ¢ 
Harden Reservoir . SEPA AW hope Ns LAO HOOK. . 
Snailsden Reservoir ZOO ss. oS US69> 55) L560 Fe 
Of the whole area, 2488 acres, the Board own only the 
sites of the reservoirs, embankments, and other structural 
works. The area is entirely moorland, without any cul- 
tivation, and no measures are considered necessary against 
contamination of the water, which is not filtered. “The 
bacteriological examinations and reports are always satis- 
factory.” 
Barnsley has two catchment areas, viz. Ingbirchworth 
reservoir, 2000 acres, between 800 and 1400 feet elevation, 
and Midhope reservoir, 2000 acres, between 800 and 1600 
feet elevation. The latter area is adjacent to the Langsett 
area of Sheffield. Both gathering grounds, which are held 
by private owners, are nearly all pasture or moorland, the 
amount of arable land being very small. The Council, in 
the spring of 1917, planted out 25,000 Scots pines and 
5000 larches. The water is filtered. 
Sheffield obtains its water supply in part from the 
adjacent moorlands on the west, which comprise three 
watersheds as follows : 
Rivelin Valley: 4978 acres at 700 to 1300 feet alti- 
tude, with 5 reservoirs, Upper, Lower, and Middle Redmires 
reservoirs, at 1150, 1105, and 1068 feet, and Upper 
and Lower Rivelin reservoirs at 698 and 672 feet 
elevation. 
Loxley Valley or Bradfield area: 10,725 acres at 650 
to 1326 feet altitude, with Agden (643 feet), Strines 
(814 feet), Dale Dike (696 feet), and Damflask (505 feet) 
reservoirs. 
Little Don Valley: 5203 acres at 1037 to 1516 feet 
elevation, with Langsett reservoir at 810 feet altitude. In 
