THE ARTESIAN WATER SUPPLY OF EASTERN FLORIDA.

liday (known as the Borden estate) is 825 feet deep and six inches in diameter. The head is reported as 25 feet above the surface. A little southeast of this well is one owned by L. A. Hamilton. This has a reported depth of 785 feet, is six inches in diameter and is cased ioo feet. The head is given as 25 feet above the surface. A well four and one-half miles southwest of Green Cove Springs, drilled by H. Mervin in 1907 for the LaVilla Turpentine Company, is non-flowing. This well contains 128 feet of three-inch casing and 320 feet of two-inch casing. It is 400 feet deep and the water stands 17 feet below the surface. The first rock noted in this well was at a depth of i70 feet.
A well directly east of Green Cove Springs and across the St. Johns River is owned by W. A. Hallows. This well was drilled by N. B. Ivey and is used for irrigation and general domestic purposes. It is 5oo feet deep, six inches in diameter and is cased about 200 feet. The water is reported to rise 35 feet above the surface.
Another well owned by N. B. Ivey is located about two miles southwest of Green Cove Springs. This well is used for irrigation and was sunk by the owner in 1907. It is a four-inch well and is reported to be Soo feet deep. At this depth the water is reported to rise five feet above the surface.
HIBERNIA.
One well is reported from Hibernia. This well was commenced July 20, 1885, and was finished in October of the same year. It was drilled by 0. H. Wade for F. A. Fleming. The well is 468 feet deep, four inches in diameter and is cased 377 feet. This well when first drilled in 188- had a pressure of 23 pounds. Unfortunately when visited in January, i9io, the pressure could not be obtained. The elevation of the well is about 25 feet above the St. Johns River. A pressure of 23 pounds will cause the water to rise 43.1 feet above the surface, or about 68.1 feet above the St. Johns River. The first water-bearing stratum in this well was reported at a depth of 400 feet, and the first rock noted was at a depth of 120 feet.
The following is an analysis of the water from this well drawn December 17, 19o9. Analysis made for the State Survey in the office of the State Chemist, A. M. Henry, analyst:
Constituents. Parts per Million.
Silica (SiO2).........................................9.
Chlorine (Cl)......................................... .
Sulphates (SO4) ..................................... .
Phosphates (P04) ...................................... o.

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