WELLS OF HENRY COUNTY, ILLINOIS. 



625 



The Manual of American Waterworks reports the public water supply to 

 be from a deep well. 



At Andover, about 5 miles southwest of Cambridge, a well penetrates 

 155 feet of drift, striking rock near the bottom. The lower 20 feet of the 

 drift is sand, the remainder mainly till. 



At Lynn Center and vicinity several wells enter rock at about 115 feet. 

 The section usually penetrated is as follows: 



Generalized section of wells near Lynn Center. 



Yellow till 10 or 15 



Blue till, with thin beds of sand 80 



At Alpha wells are usually obtained at 15 to 30 feet from a gravelly 

 drift at the base of the loess or near the top of the till, though a few are 

 sunk into the rock. A well at Bolton's sorghum mill enters rock at 75 feet, 

 and several wells southwest of Alpha reach rock at about 70 feet. The 

 drift is mainly blue till. 



In the vicinity of Orion several deep wells have been made which 

 show the drift to exceed 100 feet. In one instance rock was struck at 150 

 feet. A well at the creamery, 130 feet in depth, did not reach rock, water 

 being obtained from sand beneath blue till. 



At Annawan, in the east part of the county, a well at the creamery, 

 223 feet in depth, entered rock at 124 feet. The drift is entirely clay 

 (Udden). 



The following sections of farm wells are reported by Professor Udden: 

 Wells in Henry County, Illinois. 



In the northwest part of T. 15, R. 4 E., at an altitude of 775 feet, several wells 60 feet in depth 

 do not reach the rock. 



MON XXXVIII- 



-40 



