WATER SUPPLY OP PASTERN AND SOUTHERN PEORIDA. 225 
depth. From the above two logs it will be seen that hard rock 
was encountered at the depth of 87 and 84 feet, respectively. 
Immediately under this hard rock a softer limestone is reported 
and in this limestone the first flowing water is obtained. The 
description of this formation given by the drillers characterizes 
it as the Vicksburg which is apparently reached in this section 
at a depth of not more than 125 to 150 feet. 
DE LAND. 
The city of DeLand, the county seat of Volusia County, lies 
in the southwestern portion of the county. There are a number 
of non-flowing artesian wells in and near DeLand. The city is 
at present supplied by two deep wells located at the pumping 
station. The six-inch well is 406 feet deep and was sunk in 1895. 
This well was reduced in diameter in the process of drilling and 
is cased as follows: Six-inch casing to 100 feet, four-inch casing 
to 290 feet, two-inch casing to 390 feet. The second well, which 
was drilled in 1906 by W. F. Hamilton, is ten inches in diameter 
and is 269 feet deep. At the depth of 191 feet hard rock was en¬ 
countered upon which the casing was landed. The 'head of the 
wells, regardless of the difference in depth, was reported to be 
27 feet below the surface in both cases. The following log and 
analysis of the water from this well were kindly made available 
by Mr. E. D. McLeod: 
Feet. 
Sand . 0- 25 
Clay. 25- 45 
Shell . 45- 50 
Rock .... . 50- 55 
Sand . 55-105 
Clay. 105-113 
Shell, water-bearing . 113-125 
Rock .. 125-149 
Sand . 149-157 
Rock ■ ... . 157-197 
Sand and shell . 197-237 
Rock. 237-247 
