WELLS OE MCLEAN COUNTY, ILLINOIS. 695 



possible, however, that the "blue rock" is only a hard till. A well at the 

 Soldiers' Orphans' Home near Bloomington obtains water in gravel below 

 till at 130 feet. 



At Leroy, on a plain south of the Bloomington morainic system, 

 strong wells are obtained in sand at a depth of 20 or 3d feet. In the 

 vicinity of the village welis pass through a black muck at 35 to 40 feet. The 

 public water supply is from a well 110 feet in depth and 8 inches in diame- 

 ter, which will yield at least 100 gallons a minute. Many wells on farms 

 in the vicinity of Leroy are sunk to depths of 75 or 100 feet, and occa- 

 sionally 200 feet, without entering rock, and the water rises to within 50 feet 

 of the surface, and occasionally within 10 feet. A prospect boring for coal 

 at Leroy, made some years ago, was abandoned at a depth of 200 feet 

 without entering rock. 



At Saybrook, in the eastern part of the county, on the outer slope of 

 the Bloomington morainic system, 'a prospect boring for coal reached rock 

 at 247 feet. It was mainly through till for 38 feet, then mainly sand for 

 57 feet, beneath which was 100 feet of till, which was in turn underlain by 

 52 feet of sandy and gravelly drift. 



The village of Danvers, in the western part of the county, has recently 

 put in a waterworks system which obtains its supply from a well about 200 

 feet in depth which does not enter rock. The creamery well at Danvers is 

 also about 200 feet in depth without entering rock. It is mainly through 

 till, and struck an inflammable gas at about 170 feet. The village stands 

 on the outer ridge of the Bloomington morainic system at an altitude slightly 

 above 800 feet. 



In the vicinity of Shirley and Funk's Grove the wells are reported by 

 Mr. Lafayette Funk to have a general depth of only 30 or 40 feet, and 

 rarely to exceed 80 feet. Water is obtained in gravel below till. The 

 village well at Shirley has a depth of 40 feet, but a neighboring well at Mr. 

 Douglas's residence reached a depth of 75 feet. 



At Hey worth the general depth of wells is. 30 to 40 feet, abundance of 

 water being found in the gravel below the upper sheet of till. This village 

 has sunk borings for gas which reach a depth of 155 to 300 feet. Gas is found 

 in sand at 155 to 165 feet in a well about one-half mile south of the village, 

 and at 214 feet in a well three-fourths of a mile south of the village. A well 

 in the village 300 feet in depth obtained very little gas, though it is thought 



