THE ARTESIAN WATER SUPPLY OF EASTERN FLOIW[DA.

SEBASTIAN.
There are several flowing artesian wells in and near Sebastian. They vary in depth from 365 to 500 feet. At this depth an abundance of hard sulphuretted water is obtained, rising from 16 to 25 or more feet above the surface. A well owned by Mr. J. A. Groves, drilled by Mr. J. McAllister, was completed in 1896. This well is 460 feet deep, four inches in diameter and is cased ioo feet. The water is reported to have a head of 16 feet above the surface, the surface elevation being estimated at 25 feet above the level of the water in Indian River. The total head of the well above the river is thus 41 feet. The water is used for general and domestic purposes and for irrigation. A four-inch well drilled by Capt. Alexander Near in 19Ol, owned by the Indian River Cooperage Company, is 365 feet deep. The water is reported to rise 25 or more feet above the surface. The elevation of the depot at Sebastian according to levels run by the Florida East Coast Railway is 19 feet. This well has approximately the same elevation as the depot, and this in addition to head of 25 feet above the surface gives the well a total head of 44 feet above sea. The well is now abandoned, but when first sunk was used for the manufacture of ice.
The Fellsmere Farms Company have recently completed a well about ten miles west of Sebastian (Sec. 22, T. 31 S., R. 37 E.). The well is four inches in diameter, 370 feet deep, and is cased 146 feet. The head, tested September 23, 191o, by Mr. E. H. Every, Manager, was found to be 25 feet above the surface, and the flow 185 gallons per minute.*
The following is the analysis of the water from this well made by the State Chemist.
Constituents. Parts pear million.
Chlorine (Cl).............................................57.
Carbonates (C03) ..........................................o.
Bicarbonates (H CO3) ........................................... 177.
Loss on ignition ................................................. 245.
Total dissolved solids ........................................... 905.

*Letter to Capt. R.IE. Rose, State Chemist, Sept. 23, 1910.