580 THE ILLINOIS GLACIAL LOBE. 



INDIVIDUAL WELLS. 



At Waukegan the public water supply was formerly obtained from 

 artesian wells, but since 1895 it has been obtained by pumping- from Lake 

 Michigan. Three wells were sunk to depths of 1,135, 1,600, and 2,005 

 feet, respectively. The first well is reported by Mayor De Wolf to have 

 obtained water of fair quality, though rather heavily charged with iron. 

 The second well obtained an unpleasant water with bad odor, thought to 

 be sulphurous. The wells were discontinued because of the hardness of 

 the water, it being unfit for boiler use. The water also was found unsuit- 

 able for sprinkling lawns, it being destructive to grass. The Lake Michigan 

 water is not too hard for boiler use and in other ways is more satisfactory 

 than the artesian water. The present intake is at a distance of 1,700 feet 

 from the shore, but it is proposed to extend the tunnel to a distance of 

 about a mile. 



At Lake Forest, wells which will yield 30 barrels per day are usually 

 obtained at a depth of 40 feet or less. An artesian well at the residence 

 of Hon. C. B. Farwell reached a depth of 960 feet and obtained a flow of 

 water whose head was originally 50 feet above the surface, or about 125 

 feet above Lake Michigan. The drift at this well has a thickness of 160 

 feet. 



At Highland Park there are four artesian wells with depths of 1,800 to 

 2,200 feet. Mr. P. T. Dooley, a well driller, residing at this village, reports 

 that wells 5 inches in diameter yield about 150 gallons per minute. A 

 strong flow of water is obtained at about 900 feet and also at about 1,300 

 feet, as well as at lower horizons. The wells all flowed when first made, 

 but at present scarcely reach the surface. The elevation of the well mouths 

 is 110 to 115 feet above Lake Michigan, or 690 to 695 feet above the sea. 

 The thickness of the drift is about 175 feet. 



At Milbum, in the north part of the county, ou a plain between the 

 Valparaiso moraine and Des Plaines River, several flowing wells have been 

 obtained, and the wells on this plain usually show marked hydrostatic 

 pressure. In some cases they are but 20 feet in depth, and rarely exceed 

 75 feet. 



Near Wauconda, in the western part of the county, several wells 

 reach a depth of 70 or 80 feet, though shallower wells are common. 



