72 



curing same, and hoAV they are prepared for use. The well supplies are 

 shown, giving the depth of well, the level of the water (where it has been 

 possible to secure same), and roughly the depth of glacial drifts as found 

 in that section ; the drift depths are as gi-\-en by the United States Geo- 

 logical Survey. 



North of the Wabash river the depth of drift Is approximately 100 

 feet or over, the best wells being usually in this material. Quite a por- 

 tion in the western part is the region of extinct lakes. An interesting 

 comparison occurring in this extinct lake region, is the supply of Kent- 

 land. This town formerly had its supply from a well about 1,200 feet 

 deep, the water having a strong odor of sulphur. The water in this well 

 stood 72 feet below ground about six years ago. Last year it was 120 feet 

 below ground when pumping, and owing t<r this great lift caused much 

 trouble and expense in pumping same. 



This year a new plant was installed at Kentland. A new site was 

 selected about one-half mile from the old wqU. The wells were drilled to 

 a depth of 87 feet when rock was encountered. The last 15 feet of the 

 well was in white sand, and produced a clear sparkling water without 

 taste or odor. This installation is of interest as it shows such a difference 

 in the two wells and their product. 



From the south of the Wabash river to the Ohio the drift varies from 

 5 to 100 feet in depth, except for a triangular shaped section, with the 

 apex below Martinsville, which is practically in the rock section. The 

 water works of English in this region are of moi'e than passing interest, 

 as the supply of the tovvai is secured from an elevation high enough to 

 give pressure without pumping. 



It will be noted on the map, that of supplies shown in the rock country, 

 the majority are springs or river supplies. The procuring of water 

 in quantities suflieient for public use is in some parts of this district a A^ery 

 difhcult problem, especially in dry seasons. 



The water of the State can be divided into two main classes, surface 

 and subterranean supplies. The surface supplies comprise the river, lakes 

 and large surface wells or reservoirs and may be divided into the filtered 

 and unfiltered classes. The subterranean waters consist of the deep wells, 

 flowing or uuflowing, and springs. 



The most noteworthy characteristic of tbe surface waters is that they 

 are as a rule softer than the well waters and after filtration usually make' 

 a very satisfactory supply. The well waters as a rule are harder and in 



