Hydrogeologic Data from a Test Well in East-Central Duval County, Florida - Usgs Open-File Report 84-802 (Paperback)

A 2,112-foot test well was drilled in east-central Duval County, Florida, to obtain geologic, hydrologic, and water chemistry data. Drill cuttings and water samples were collected, and water-level measurements and lithologic and geophysical logs were made. Deposits to a depth of 575 feet consist of sand, clayey sand, phosphatic sandy clay, coquina, sandy limestone, and dolostone. Below 575 feet, the deposits consist of fragmented and granular limestone, dolomitic limestone, and massive to finely crystalline dolostone, which comprise the Floridan aquifer system in the area. Water levels were measured near or at the bottom of the drill hole through the drill stem and in the annular space between the drilled hole and drill stem at the well head as drilling progressed from 770 to 2,112 feet in depth. Water levels measured through the drill stem ranged from 1.17 feet above land surface at a depth of 2,107 feet to 15.0 feet above land surface at a depth of 1,574 feet. Water levels measured in the annular space ranged from 7.5 feet above land surface at a depth of 770 feet to 14.9 feet at various depths from 1,574 to 1,721 feet. Chloride concentrations of water sampled through the drill stem from a depth of 711 to 1,616 feet ranged from 22 to 150 milligrams per liter at 1,648 feet. Chloride concentrations then ranged from 345 to about 800 milligrams per liter to a depth of 2,071 feet and then increased to a maximum of 5,450 milligrams per liter at 2,107 feet. (USGS)

General

Imprint:	Bibliogov
Country of origin:	United States
Release date:	March 2013
First published:	March 2013
Authors:	D.P. Brown • RA Johnson • R. A. Broxton
Dimensions:	246 x 189 x 4mm (L x W x T)
Format:	Paperback - Trade
Pages:	70
ISBN-13:	978-1-288-87595-5
Categories:	Books > Social sciences > Politics & government > General Promotions
LSN:	1-288-87595-9
Barcode:	9781288875955

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