WELLS OF WHITE COUNTY, ILLINOIS. 777 



the county limit in Posey County. Indiana, and Gallatin County, Illinois. 

 The drift is mainly a brown till on which there is a coating of silt 6 or 8 

 feet in depth, which is probably the southward extension ot the white 

 clay, though a more porous deposit. 



Wells are obtained on the uplands at moderate depths in the rock. On 

 the lowlands they are shallow, seldom exceeding 30 feet, and obtain water 

 from gravel or sand. Along the Wabash there is an extensive bottom 

 underlain by fine gravel which affords water at about the level of the 

 river. 



INDIVIDUAL WELLS. 



The public water supply at Carmi is pumped from the Little Wabash 

 River. On the hills bordering the city wells enter rock at about 10 feet and 

 water is obtained at 25 to 40 feet. These conditions prevail southwestward 

 to the limits of the county. 



In the south part of the county, in Heralds Prairie Township, there is 

 considerable lowland, and wells occasionally reach a depth of 40 feet without 

 entering rock; they are mainly through till. 



In the Wabash bottoms, in the vicinity of Concord, (Emma post-office) 

 the wells range in depth from 15 to 40 feet and are mainly through sand. 

 About 3 miles east of this village wells obtain water in gravel at a depth of 

 but 12 to 20 feet. 



In the vicinity of Crossville and Phillipstown, northeast from Carmi, 

 wells obtain water at about 25 feet in sand. A section near Phillipstown is 

 noted in the Geology of Illinois, which exposes loess with fossils, 20 or 30 

 feet, beneath which is drift with pebbles and small granite bowlders, 35 feet. 



At Grayville, in the northeast corner of the county, the loess has a 

 thickness of 15 or more feet and is underlain by a thin sheet of till. Wells 

 usually enter the rock, obtaining water at 30 to 40 feet. The waterworks 

 obtains its supply from the Wabash River. 1 



HAMILTON COUNTY. 

 GENERAL STATEMENT. 



Hamilton County is situated west of White County, in the southeastern 

 portion of the State and has an area of 440 square miles, with McLeans- 

 boro as the county seat. Its southeast portion is drained by the north fork 



1 Manual of American Waterworks. 1897. 



