THE ARTESIAN WATER SUPPLY OF EASTERN FLORIDA. 
177 
Sand .. 
Clay .............. 
Shell .. 
Rock .. 
Sand ... 
Clay .. 
Shell, water-bearing 
Rock . 
Sand .. 
Rock . 
Sand and shell .... 
Rock ... 
Clay ... 
Sand . 
Rock .. 
Clay . 
Shell and clay. 
Rock .. 
Cavity with water .. 
Feet. 
. o- 25 
• 25- 45 
• 45 - 50 
• 50 - 55 
• 55-105 
.105-113 
.113-125 
.125-149 
.149-157 
. 157-197 
. 197-237 
.237-247 
■247-257 
• 257-265 
.265-277 
277-292 
.292-372 
372-392 
392-406 
The following is an analysis of the water from the six-inch 
city well at DeLand. Analysis by H. Herzog, Jr., Gainesville, Fla. 
Constituents. Parts per Million. 
Total solids . 136.29 
Residue after ignition (mineral matter). 76.11 
Gas and ignition (organic matter) . 60.17 
Sodium chloride . 11.31 
Free ammonia . .68 
Albuminoid ammonia .17 
Oxygen (consuming power) . 1.54 
Nitrates . 34 
Nitrites ....None 
Sulphates . 2.05 
Phosphates . Trace 
ENTERPRISE. 
Flowing wells are obtained at Enterprise along the shore of 
Lake Monroe and in areas where the elevation does not exceed more 
than ten or twelve feet above the level of the water in the lake. The 
depth of the wells in this vicinity ranges from 20 to 200 or more 
feet, the average depth being between 90 and no feet. The water 
is hard and is charged with hydrogen sulphide, in some instances 
containing a large amount of salt. A well owned by Mr. William S. 
Thayer was drilled to a depth of 98 feet. It is two inches in diame¬ 
ter and is cased 45 feet. The estimated elevation of this well is 
15 feet above the level of the water in Lake Monroe. The 
G12 
