WATER CATCHMENT AREAS 183 
practically own none of the area, which is without any 
plantations, most of it being “rather bare and above the 
tree-line.” The water is filtered, and in times of floods, 
etc., the keeper of the Laneshaw reservoir turns the intake 
down the bye-pass channel, so as to keep the water out of 
the reservoir. 
Nelson obtains its water supply from two gathering 
grounds : 
1. Catlow Brook area, east of the town, 400 acres, 
between 943 and 1300 feet elevation, draining into Cold- 
well reservoir, and 
2. Pendle Hill area, west of Nelson, 1100 acres, between 
837 and 1850 feet, with two reservoirs at Ogden. 
The total area, 1500 acres, is entirely hill pasture and 
moor, without plantations or arable land. The Corporation 
own 137 acres, situated above Coldwell reservoir, which 
was purchased in 1916 in order to prevent manuring of 
the land. The water is filtered. 
Padiham Urban District Council obtains its water supply 
from two upland surfaces, aggregating 440 acres on Pendle 
Hill, and situated between 800 and 1500 feet elevation. 
The area, none of which is owned by the Council, is hill 
pasture grazed by sheep, and is without plantations or 
farmsteads. The only precautions taken are constant 
inspection of the streams. The water, which is not filtered, 
is stored in the Pendle Hill reservoir. 
Burnley obtains its water supply from two gathering 
grounds: Cant Clough reservoir, Worsthorne Moor, 1050 
acres, between 800 and 1400 feet elevation; and two 
reservoirs at Swinden, Extwistle Moor, 985 acres, between 
924 and 1400 feet elevation. The total area, 20335 acres 
in extent, is entirely hill pasture and moorland, free from 
farmsteads and habitations; and no part of it is owned by 
the Council except the sites of the reservoirs. The water is 
filtered, and no other precautions are considered necessary 
against contamination. 
