170 FLORIDA GEOLOGICAL SURVEY-THIRD ANNUAL REPORT. 
unhealthful, and as a source of danger to the city and surrounding 
communities. 
The use of wells to carry off surface waters at this locality has 
been described in the preceding paper of this report (pp. 72-75). 
OVIEDO. 
Oviedo lies on the eastern edge of the lake region of Orange 
County. The region is sandy and the topography is flat to gently 
undulating. The country east of Oviedo is of the prevailing flat- 
woods type bordering the St. Johns River and Lake Jessup, and 
flowing wells are here obtained at comparatively shallow depths. 
Both flowing and non-flowing wells occur at Oviedo, depending on 
the local elevation. 
Mr. N. J. Tanner’s well about one-eighth of a mile east of 
the postoffice at Oviedo, located in a depression, is about 114 feet 
deep, two inches in diameter and is cased 75 feet. The water from 
this well flows just above the surface. It is a hard sulphur water 
and is used for irrigating purposes. 
The well of Mr. A. J. McCulley is 75 feet deep, two inches in 
diameter and is cased 70 feet. This w T ell was sunk by the owner in 
1907. The water is reported to rise to within 14 feet of the sur¬ 
face. Mr. McCulley owns another two-inch well which is 73 feet 
deep, and is cased 68 feet. The water in this well is said to rise, 
to within three feet of the surface. This apparent difference in head 
is due largely to a difference in elevation of the wells. 
A two-inch well 117 feet deep, one and one-quarter miles west 
of Oviedo was completed for Mr. D. W. Curry in 1910 by Mr. A. 
J. McCulley. This well gives a good flow of sulphur water and had 
when measured in April, 1910, a pressure of four and one-quarter 
pounds, the measurement being made about five feet above the 
ground. The first flow in this well was encountered at a depth of 
79 feet. 
A well fourteen miles east of Oviedo on the Econlockhatchee 
Creek furnishes a flow of salt water. This well was drilled in 1907 
by A. J. McCulley and is 114 feet deep, two inches in diameter and 
is cased 75 feet. The first flowing water, which was salty, was 
found at a depth of 70 feet. 
SANFORD. 
Probably not less than 1,000 wells occur in and around Sanford- 
These wells are used for irrigating purposes and obtain flowing. 
