WORGRET HILL AND WAREHAM WATER SUPPLY. I 55 



from the Well, and it was found to be still turbid with much fine 

 sand. 



There was still some dissatisfaction at the turbidity of the 

 water, and in June, 1905, cavities in the sides of the Well had, to 

 be filled with gravel.* It was also decided to start a borehole from 

 the bottom of the Well in the hopes of finding a more satis- 

 factory supply of water. On October yth, Mr. Chatterton, the 

 engineer, wrote to the effect that the test pumping showed that 

 the boring yielded practically no further supply of water. At 

 that time the borehole had passed through the second great 

 Sand-series, and was already encountering some grey and 

 mottled clays, which he conceived might indicate the presence 

 of the Reading Beds, and that possibly the Chalk was not far off; 

 after going through this Clay-series for thirty or forty feet further, 

 he began to have his doubts as to the position, since there was 

 no change in the nature of the ground, the boring being still in 

 the grey clay. It was pointed out that the samples brought up 

 tallied with the regular pipeclay series of the Bagshots, and that 

 the Chalk was still far distant. The boring was carried through 

 these clays to a depth of 215 feet from the surface, and on the 

 3oth October operations were finally discontinued. 



NEGLECT OF OPPORTUNITY. 



It is almost a matter for regret that some public body did not 

 take this opportunity of ascertaining once for all the actual 

 thickness of the Tertiary Beds in the centre of the Trough of 

 Wareham. Nevertheless, we have gained some little geological 

 knowledge from the operations for obtaining water, and the 

 structure of Worgret Hill thus displayed may help to throw 



* In June, 1905, the Well was thoroughly examined, small iron tubes were 

 inserted through the brickwork lining the Well, and fine cement was blown in to 

 fill up any space existing between the brick lining and the side of the Well. The 

 only cavity of any consequence was found at the back of the iron cylinders at the 

 bottom of the Well, and this was also filled with cement. 



