184 FLORIDA GEOLOGICAL SURVEY—THIRD ANNUAL REPORT. 
COCOA. 
The number of artesian wells in and around Cocoa renders it im¬ 
possible to specifically mention more than a few representative ones. 
The artesian wells in this section terminate at a medium depth and 
are sunk without encountering great difficulty in drilling, thus mak¬ 
ing the cost comparatively slight. The wells terminate in the 
Vicksburg Limestone, as indicated by the mixed samples of drillings 
from the well of H. Bradford one mile southwest of Cocoa. The 
water is reported in some instances to contain a trace of salt but 
only in a very few cases was it found to be injurious to vegetation. 
The well of O. K. Key was sunk by the owner in 1908. It is a 
three-inch well and has a depth of 202 feet. The well is cased 
140 feet. The pressure of the well as indicated by the pressure 
gauge, March 10, 1910, was ten pounds, or a head of 23.1 feet 
above the surface. The elevation of the well above the level of 
the water in the Indian River as shown by barometric readings is 
15 feet, thus giving the well a total head of 38.1 feet above the 
water level in the river. The water has a slight trace of salt and 
is impregnated with hydrogen sulphide gas. 
About one-fourth mile southwest of the city postoffice is the 
well of the Cocoa Ice Company. This well is reported to have 
been drilled in 1888. It is a four-inch well, 325 feet deep and cased 
about 125 feet. The pressure of this well in 1908 was reported to 
be twelve and one quarter pounds. This pressure would give the 
well a head of 28.2 feet above the surface. The estimated surface 
elevation is about 10 feet above the river, making a total head of 
38.2 feet above the level of the water in Indian River. 
An artesian well,one mile southeast of Cocoa was completed 
in February, 1910. This well was drilled by J. A. Coward and is 
owned by H. Bradford. It is three inches in diameter, 190 
feet deep and is cased to a depth of 80 feet. A mixed sample of 
the drillings taken after the completion of the well indicates that the 
Vicksburg Limestone was encountered. The exact depth at which 
this limestone was reached could not be learned. The volume of 
flow as measured March 10, 1910, was 60 gallons per minute and 
the pressure as indicated by the pressure gauge on the same date 
was five pounds or a pressure sufficient to cause the water to rise 
11.5 feet above the surface. The elevation of the well above the 
level of the water in Indian River as shown by barometric read¬ 
ings is 20 feet. This elevation together with a head of 11.5 
feet above the surface gives the well a total head of 31.5 feet above 
the river level. The water is the characteristic sulphur water com¬ 
mon to most of the artesian wells of the State. 
