180 FLORIDA GEOLOGICAL SURVEY-THIRD' ANNUAL REPORT.
give a brackish flow while the water from the other well which is located about one mile south and west of the head of the river. is reported to be fresh. This well, however, is not as deep as the other two wells, being only 82 feet deep and terminating before passing through the "bed" or hard rock which was encountered at that depth. The two brackish wells are reported to have a depth of I Io feet and to have a head of about seven feet above the surface. According to well records this seems to be the northern extent ot the shallow brackish flowing wells, fresh water wells being obtained 'just a few miles to the north. Eastward this salt area presumably extends to the Atlantic Ocean. In 1907 Mr. J. W. Griffis had a well sunk one mile northwest of Shiloh, to a depth of 149 feet. The wcll at this depth flowed just above the surface and furnished a very strong salt water. The well is now capped and is not used. The character of the artesian water westwardd in this part of the county is not known, records of wells not having been obtained.
ORANGE CITY.
The Orange City wells vary in depth from I 17 to 890 feet. The 890 foot well is owned by Mr. Albert Dickinson and is- not used. Salt water was encountered at the depth of 890 feet and the well was plugged up below 66o feet. The depth of the well as now used is 66o feet. The principal use of the artesian wells in this vicinity, aside from general domestic purposes, is that of irrigation. The Orange City Mineral Spring Company, however, have a well I17 feet deep, the water from which is bottled for sale. This is a ten-inch well and is reported cased to a depth of fifteen feet. The water is said to rise to within twenty feet of the surface. The following is an analysis of the water from this well:* Analyst unknown.
Constituents. Parts per Million.
Free ammonia ........................................o.oo
Albuminoid ammonia ....................................... 0.05
Oxygen consumed ......................................... 1.05
N itrites ..................................................... o.oo
N itrates ................................................... O.0O
ORMOND.
Several deep wells have been sunk at Ormond. These deep wells all fumish a salt water which can not be used except in some in*U. S. Geological Survey, Bull. l02, p. 263, 19o4.