Water-level conditions in southern Florida
Water-level conditions in southern Florida
All data presented on this site are considered to be PROVISIONAL DATA and subject to revision pending further review.
USGS STATION NUMBER.-- USGS 263845081260702
LOCATION.-- Lat 26°38'47", long 81°26'09" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 sec.21, T.44 S., R.29 E., Hendry County, FL, Hydrologic Unit 03090205, at southeast corner of intersection of State Road 29 and Sears Road, and 3.6 mi west of Sears.
AQUIFER.-- Sandstone aquifer of the Miocene Age, Geologic Unit 122 SNDS.
WELL CHARACTERISTICS.-- Depth 175 ft, casing diameter 4 in. to 135 ft. Artesian well.
DATUM.-- Top of shelf, 32.77 ft above National Geodetic Vertical Datum of 1929, Oct. 1991 to present
PERIOD OF RECORD.-- October 1975 to December 1975 (monthly), January 1976 to October 1983, October 1984 to current year.
REMARKS.-- Station reconstructed February 27, 1992. Published figures of water levels as elevation, in feet NGVD, from January 1975 to September 30, 1978, require a -2.80 ft correction. Published records from October 1, 1978, to September 30, 1986, require a +1.99 ft correction. Corrected data are in the files of the U.S. Geological Survey. See DATUM. (Corrected)
EXTREMES FOR PERIOD OF RECORD.-- Highest daily maximum water level, 26.03 ft NGVD, Sept. 26,27, 1982; lowest, 2.67 ft below NGVD, Feb. 16, 2001. (Corrected)
Online map showing USGS_263845081260702 (through Google Maps - not a USGS site) at (26.6467361,-81.4356308).
Daily values tables - HTML tables
Daily values tables - raw retrieval
Most recent monitoring data received at HE - 556:
(Recorded within last 60 days of site monitoring or during site visit within past 180 days.)
Data type Value Date Time
Computed elevation, in ft (NGVD) 17.44 21-JAN-2013 12:00:00
Online data inventory for HE - 556: Data type Start End Number of records Computed elevation, in ft (NGVD) 01-OCT-1996 27-AUG-2012 132233 Daily maximum elevation, in ft (NGVD) 02-JAN-1976 26-AUG-2012 12543 Measured water-level elevation 23-OCT-1975 26-APR-2012 258
![Graph: Continuously recorded water levels for the past 30 days are compared to daily (maximum) water levels from last year, the minimum and maximum daily levels for the corresponding weeks of the year for the site period of record, and daily levels for the 2001 drought year.. Data used to produce this graph is available via the [data used] link on the page.](https://webarchive.library.unt.edu/web/20130316055856im_/http://www.sflorida.er.usgs.gov/ddn_data/graphics/graphs/graph_00156.gif)
[D]
Continuously recorded water levels for the past 30 days are compared to daily (maximum) water levels from last year, the minimum and maximum daily levels for the corresponding weeks of the year for the site period of record, and daily levels for the 2001 drought year.
Data used to produce the current 30-day hydrograph at HE - 556 (263845081260702)
Description of information presented in the current 30-day hydrograph at HE - 556 (263845081260702)
![Graph: Continuously recorded water levels for the past 90 days are compared to daily (maximum) water levels from last year, the minimum and maximum daily levels for the corresponding weeks of the year for the site period of record, and daily levels for the 2001 drought year.. Data used to produce this graph is available via the [data used] link on the page.](https://webarchive.library.unt.edu/web/20130316055856im_/http://www.sflorida.er.usgs.gov/ddn_data/graphics/graphs/graph_00438.gif)
[D]
Continuously recorded water levels for the past 90 days are compared to daily (maximum) water levels from last year, the minimum and maximum daily levels for the corresponding weeks of the year for the site period of record, and daily levels for the 2001 drought year.
Data used to produce the current 90-day hydrograph at HE - 556 (263845081260702)
Description of information presented in the current 90-day hydrograph at HE - 556 (263845081260702)
![Graph: Daily maximum water levels for the year are compared to water levels from last year, the minimum and maximum daily levels for the corresponding weeks of the year for the site period of record, and daily levels for the 2001 drought year.. Data used to produce this graph is available via the [data used] link on the page.](https://webarchive.library.unt.edu/web/20130316055856im_/http://www.sflorida.er.usgs.gov/ddn_data/graphics/graphs/graph_00720.gif)
[D]
Daily maximum water levels for the year are compared to water levels from last year, the minimum and maximum daily levels for the corresponding weeks of the year for the site period of record, and daily levels for the 2001 drought year.
Data used to produce the current year-to-date hydrograph at HE - 556 (263845081260702)
Description of information presented in the current year-to-date hydrograph at HE - 556 (263845081260702)
![Graph: Long-term water-level elevation trends are estimated by statistical analysis, then water-level elevations for the past year are compared to the duration information, compensated for long-term trends, for the corresponding weeks of the year.. Data used to produce this graph is available via the [data used] link on the page.](https://webarchive.library.unt.edu/web/20130316055856im_/http://www.sflorida.er.usgs.gov/ddn_data/graphics/graphs/graph_00929.gif)
[D]
Long-term water-level elevation trends are estimated by statistical analysis, then water-level elevations for the past year are compared to the duration information, compensated for long-term trends, for the corresponding weeks of the year.
Data used to produce the one-year hydrograph at HE - 556 (263845081260702)
Description of information presented in the one-year hydrograph at HE - 556 (263845081260702)
The change in daily water-level elevations correlates with time to a 95-percent degree of confidence for the past 35 years. A second-order regression has been performed against the daily water-level elevations for the past 35 years to quantify a long-term trend in the data. The estimated first-order long-term trend in water level, using the Seasonal Kendall Slope Estimator, is -0.0070 ft/year, measured over the last 25 years (12-JAN-2012). (Description of statistical methods)
![Graph: Water-level elevations from the past 35 years . Data used to produce this graph is available via the [data used] link on the page.](https://webarchive.library.unt.edu/web/20130316055856im_/http://www.sflorida.er.usgs.gov/ddn_data/graphics/graphs/graph_01139.gif)
[D]
Water-level elevations from the past 35 years.
Data used to produce the period of record hydrograph - past 35 years at HE - 556 (USGS 263845081260702)
Description of information presented in the period of record hydrograph - past 35 years at HE - 556 (USGS 263845081260702)
The change in daily water-level elevations correlates with time to a 95-percent degree of confidence for the past 35 years. A second-order regression has been performed against the daily water-level elevations for the past 35 years to quantify a long-term trend in the data. The estimated first-order long-term trend in water level, using the Seasonal Kendall Slope Estimator, is -0.0070 ft/year, measured over the last 25 years (12-JAN-2012). (Description of statistical methods)
Funding for the USGS to design and maintain this site has been provided through a cooperative agreement with the South Florida Water Management District (SFWMD). Water-level conditions are monitored by the USGS with support from Federal, State, and local cooperators.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.sflorida.er.usgs.gov/ddn-cgi/run.pl?
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