WELLS OF VERMILION COUNTY. ILLINOIS. 099 



Manual of American Waterworks (1897) reports two 8-inch driven wells at 

 the waterworks. Many wells are obtained in the vicinity of Hoopeston at 

 depths of 80 to 100 feet, in sand or gravel below blue till. 



At East Lynn wells are usually obtained at depths of 40 to 60 feet, in 

 gravel or sand below a sheet of till. 



At Rossville a coal boring about 500. feet in depth entered hard rock 

 at 190 feet. There is 125 feet of blue till forming the upper part of the 

 drift, beneath which is 60 feet of cemented material, called by the driller a 

 soft sandstone, under which there is a water-bearing gravel resting on the 

 rock. A similar cemented material was penetrated in a boring about 5 

 miles north of Rossville. It sets in under the blue till at a depth of 150 

 feet, and is underlaid by a yellow, pebbly clay, extending to the rock at 

 235 feet. The Manual of American Waterworks reports that the public 

 supply at Rossville is from a deep well. 



The public water supply for the city of Danville is pumped from the 

 North Fork of Vermilion River. Wells in the city usually enter rock at a 

 depth of about 15 feet and obtain water at a depth of 60 to 75 feet, which 

 is near the level of the Vermilion River. A deep well sunk at Dan- 

 ville Junction to a depth of 2,008 feet has the following section, reported 

 by J. Gr. English, of Danville: 



Section of a well at Danville Junction, Illinois. 



Feet. 



Yellow till and gravel 2 ^ 



Blue till -•" 15 



Hardpan 3 ° 



Blue till 15 



Sandy loam 1° 



Clay, sand, and gravel - o0 



Muck bed with wood 



Tough blue clay - - - ■ -° 



Sand and gravel 



Coal Measures and Devonian strata fl 50 



Hard gray limestone (probably Upper Silurian) 51 



Soft gray limestone with H 2 S gas 10 



Limestone, both dark and light colored - 16 



Soft white limestone with H 2 S gas 



Limestone, both dark and light colored. 342 



White sandstone (St. Peter?), and brackish water 35 



Clay shale '- 110 



195 

 Gray limestone 



Blue limestone 



Blue shale. 



57 



Red rock ^ 



Total depth 2 > °° 8 



