WATER CATCHMENT AREAS IN SCOTLAND 259 
steadings upon it, but there are two houses. Of the 
total area 16 acres are owned by the Corporation. I 
have no information as to what measures are taken against 
contamination of the water. 
III. Strr~tinc AND LANARK COUNTIES 
Gathering grounds, 43,362 acres, supplying fifteen local 
authorities (Gorbals area supplying Glasgow and Car- 
munnock area supplying Upper District of Renfrew 
included). 10,290 acres owned by two local authorities. 
Stirling obtains its water supply from the Touch catch- 
ment area, about 4 miles south-west of the town, 1250 
acres in extent, of which 600 acres are below 1000 feet 
elevation and 650 acres between 1000 and 1500 feet. 
The area is wild rocky moorland and rough hill grazing, 
without arable land, peat, plantations, or habitations. The 
Waterworks Commissioners own only the sites of the 
reservoirs, 534 acres, but have the right to take water 
in perpetuity subject to an annual payment. The three 
reservoirs are at 887, 759, and 707 feet elevation; a 
small settling pond is at 484 feet, and the filters are at 
455 feet. The average annual rainfall for 30 years on the 
area is 44°43 inches, varying from 34°77 to 63°25 inches, 
Kilsyth obtains its new water supply from the Corrie 
reservoir, about a mile north-west of the burgh, with a 
gathering ground of 190 acres, all hill pasture, between 
852 and 1393 feet altitude. The Council own the site of 
the reservoir and some land around it, about 124 acres 
fenced in. The catchment area, which has no habitations 
or farm-steadings, is grazed by sheep and a few cattle. The 
sheep drains are occasionally cleared out near the reservoir. 
The water is not filtered. The total annual rainfall in 1912 
was 70°20 inches, 
Denny and Dunipace Burgh obtains its water supply 
from Overton catchment area, 220 acres in extent, between 
