WELLS OF CHRISTIAN COUNTY, ILLINOIS. 725 



INDIVIDUAL WELLS. 



The public water supply for the city of Springfield is obtained from 

 infiltration wells sunk to a depth of about 25 feet on the banks of the 

 Sangamon River. Private wells are largely discontinued, but may be 

 obtained at depths of 25 feet or less. 



In the northwest part of the county, near Pleasant Plain, the drift is 

 60 to 80 feet in depth, as shown by coal shafts, but wells are usually 

 obtained at 20 to 40 feet. 



In the northern part of the county the drift is 40 to 60 feet in depth, 

 but wells are usually obtained without entering- the rock. 



In the eastern part several coal shafts and a few of the wells enter rock 

 at about 60 feet. At Illiopolis rock is struck at 54 feet, and at Dawson at 

 60 feet. Southeast from Illiopolis, near the Sangamon River, records of 

 two wells were obtained which penetrated about 80 feet of drift. 



In the southern part, near Lowder, although the altitude is the highest 

 in the county, rock is frequently entered at about 20 feet. This area of 

 thin drift is a continuation of that noted in southeastern Morgan County. 



In the western part of the county the distance to rock ranges from 20 

 to at least 75 feet. Near New Berlin the rock is entered at 40 or 50 feet. 

 At Bates a well at the elevator, 70 feet in depth, did not reach rock. A 

 well at the elevator in Curran also reached a dejDth of 70 feet without enter- 

 ing rock, but within 2 or 3 miles south of Curran wells enter rock at 20 or 

 30 feet. 



CHRISTIAN COUNTY. 

 GENERAL STATEMENT. 



Christian County is situated southeast of Sangamon and has an area of 

 710 square miles, with Taylorville as the county seat. It is drained chieflv 

 by the South Fork of Sangamon River, which leads northwestward through 

 the county. The main Sangamon River forms the north border of the 

 county. The character of the drainage and the coating of loess are similar 

 to the same features in Sangamon County already discussed. 



The drift is seldom less than 60 feet, and in places is more than 100 

 feet in thickness, and consists largely of blue till. The occurrence of peat 

 and muck at the base of the loess is quite common, as indicated on page 126. 

 Throughout the county wells are usually obtained at depths of 20 to 30 



