WATER CATCHMENT AREAS IN IRELAND 291 



on the Glenedra Water and the other on the Altnaheglish 

 River, not far above the point where they unite to form the 

 Owenrigh River. The excellent catchment area, which it is 

 proposed to acquire, is mountain land, free from habitations 

 and any chance of contamination ; and is situated in Carna- 

 bane, Templemoyle, Glenedra, and Teeavan townlands, 

 comprising the basins of the Glenedra and Altnaheglish 

 Rivers, and ranging in elevation from about 700 feet to 

 2170 feet, the latter being the altitude of Mullaghaneany. 



Buncrana : gathering ground of 250 acres, at 250 to 

 800 feet elevation, in Gransha townland, all mountain 

 grazing, with one dwelling-house ; no filtration. Council 

 own none of the ground. 



Letterkenny : new supply from Lough Salt, a lake 73 

 acres in extent, at 8 1 6 feet elevation ; no filtration neces- 

 sary. Council own none of the catchment area, acreage of 

 which is not stated. 



Holy wood : gathering ground of 424 acres in Ballykeel 

 and Holy wood townlands, between 350 and 664 feet 

 elevation, comprising 380 acres of arable land, 30 acres of 

 moss and rough grazing, and 14 acres of copse and 

 shrubbery in a glen. There are 9 dwelling-houses, all 

 with farm-steadings, on the gathering ground. The Council 

 own 35 acres, and the measures against contamination 

 include " collection of overflows from farmyards and irriga- 

 tion of the lands farthest from the main feeders." 



Bangor obtains its water supply from two gathering 

 grounds : 



(1) Helen's Tower area, 330 acres, between 213 and 

 400 feet elevation, comprising 80 acres of mountain grazing 

 and 250 acres of plantations, with one dwelling-house upon 

 it. (2) Bally sallagh area, 1026 acres, between 277 and 

 600 feet elevation, comprising 900 acres of arable land, 26 

 acres of hill pasture, and 100 acres of plantations, with 2 5 

 dwelling-houses upon it. The Council own no part of the 



