WATEK CATCHMENT AEEAS 187 



upon the area. Mr. Frank H. Brunt, A.M.Inst.C.K, 

 states that the presence of soot is easily discernible 

 on the moorland grass situated within several miles of 

 Kochdale. 



Bolton has 12,202 acres of gathering grounds at 

 Entwistle, Belmont, and Heaton. The compensation reser- 

 voirs, Belmont, Eumworth, and Wayoh, draw from about half 

 this area; and the Springs, Dingle, Entwistle, High Eid, 

 and Heaton storage reservoirs obtain their domestic water 

 from the other half. Of the total area the Corporation have 

 acquired 7084 acres, of which 6046 acres are in the 

 Belmont area in Turton Urban District, and 915 acres are 

 in the Entwistle area, Darwen Parish. The Corporation 

 have not acquired the gathering grounds of the Heaton and 

 High Kid reservoirs, situated for the most part in the 

 Borough of Bolton, and are unable to exercise effective 

 control over these areas, on which there are 7 farms, 2 

 public - houses, and 3 9 cottages, with a population of 

 216 persons. Notwithstanding the large expenditure by 

 the Corporation in enclosing tlie streams thereon, and the 

 measures taken to obviate preventable pollution, the water 

 obtained from this source is at times so grossly polluted as 

 to be obnoxious and highly dangerous. The Local Govern- 

 ment Board wrote to the Town Clerk on 1st December 

 1910 as follows : " The Board approve of the exclusion of 

 Heaton water, that has not been subjected to storage, from 

 the supply, and of the decision of the Town Council to 

 abolish in a few years the farms on their gathering grounds. 

 The Board further understand that it is the intention of the 

 Town Council to acquire those parts of the gathering 

 grounds not already in their possession. This is a proposal 

 with which the Board entirely agree." 



Mr. Lewis Mitchell, M.Inst.C.E., in charge of the Water- 

 works, is of opinion that " the storage and filtration of 

 water used for domestic purposes is not sufficient to 

 guarantee its wholesomeness, because the reservoirs become 

 depleted during periods of drought ; and subsequently, 



