176 FLORIDA GEOLOGICAL SURVEY-THIRD ANNUAL REPORT.
The following is a log of Mr. H. VanDorn's well. The well is one-half mile west of the postoffice and was completed by Mr. VanDorn in April, 191o. It is a four-inch well, 205 feet deep and is cased 83 feet.
Feet.
D ark sandy soil ............................................... 0 3
H ardpan ...................................................... 3- 5
W hite sand .................................................... 5- 40
Coquina and shell ............................................. 40- 45
W hite sand ................................................... 45- 65
Blue clay.......................... ....................65- 83
Hard rock. Light flow just above this rock ..................... 83- 84
Light-colored limestone, with harder and softer layers. Increase
of water with increase of depth ............................ 84-205
The wells listed are representative of the wells surrounding Daytona. Flowing water is obtained at a comparatively shallow depth. From the above two logs it will be seen that hard rock was encountered at the depths 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 forniation 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 15o 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 4o6 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 IOO feet; four-inch casing to 290 feet; txvo-inch casing to 390 feet. The second well which
was drilled in 19o6 by W. F. Hamilton is ten inches in diameter and is 269 feet deep. At the depth of I9I feet haid rock was encountered upon which the casing was landed. The head of the wells, regardlless 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.