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 260325080113901
LOCATION.-- Lat 26°03'28", long 80°11'38" referenced to North American Datum of 1983, in SE 1/4 NW 1/4 sec.31, T.50 S., R.42 E., Broward County, FL, Hydrologic Unit 03090202, 29 ft south of a storm drain on the east side of SW 35th Terrace, 0.45 mi south of Griffin Road.
AQUIFER.-- Biscayne limestone aquifer of the Pleistocene Age, Geologic Unit 112 BSCNN.
WELL CHARACTERISTICS.-- Depth 114.5 ft. Upper casing diameter 2 in.; top of first opening 104.5 ft, bottom of last opening 114.5 ft.
DATUM.-- Top of base, 9.44 ft above National Geodetic Vertical Datum of 1929, Feb. 15, 2001, to present
PERIOD OF RECORD.-- Water Level Measurements: October 2000 to March 2001 (monthly), March 2001 to current year. Induction
REMARKS.-- Well is also used for salinity monitoring, including an annual induction log. See PERIOD OF RECORD. Induction logs are used to assess the movement of fresh-water/salt-water interface in ground water. See RECORDS OF BULK CONDUCTIVITY . A calibration error was found to have affected some of the historical bulk conductivity logs collected by an induction logger. Bulk conductivity logs prior to the 2002 water year had been calibrated to a standard of 1,301 mS/m. For these calibrations, an internal setting limited the probe response to 1,000 mS/m. Data for the affected years was corrected by applying a 0.7686 multiplier. Station was reconstructed in February 2001, for the collection of continuous water-level, temperature and specific conductance data. Because of the failure of a conductance probe element, specific conductance data, originally collected October 2004 to February 2005, has been removed from the station data record. Temperature records are available in the files of the U.S. Geological Survey.
EXTREMES FOR PERIOD OF RECORD.-- Highest daily maximum water level, 4.20 ft NGVD, May 27, 28, 2003; lowest, 0.62 ft NGVD, May 8, 10, 11, 2002. Highest daily mean specific conductance, 11,660 microsiemens per centimeter, June 1,2, 2007; lowest, 7,718 microsiemens per centimeter, Oct. 27, 2001.
Online map showing USGS_260325080113901 (through Google Maps - not a USGS site) at (26.0577774,-80.1938858).
Daily values tables - HTML tables
Daily values tables - raw retrieval
2002 Induction logs are available online in JPEG (smaller file) and PDF (better visibility) formats.
2005 Induction logs are available online in JPEG (smaller file) and PDF (better visibility) formats.
2006 Induction logs are available online in JPEG (smaller file) and HTML/SVG (better visibility) formats.
2007 Induction logs are available online in JPEG (smaller file) and HTML/SVG (better visibility) formats.
2008 Induction logs are available online in PNG (smaller file) and HTML/SVG (better visibility) formats.
Most recent monitoring data received at G -2900:
(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) 2.07 26-NOV-2009 11:15:00
Computed specific conductance, in us/cm @ 25c 13543 26-NOV-2009 11:15:00
Measured dissolved chloride content 3600 06-NOV-2009 10:21:00
Measured specific conductance 11800 06-NOV-2009 10:21:00
Measured water level elevation 1.81 06-NOV-2009 10:21:00
Online data inventory for G -2900: Data type Start End Number of records Computed elevation, in ft (NGVD) 21-MAR-2001 25-NOV-2009 290779 Computed specific conductance, in us/cm @ 25c 21-MAR-2001 25-NOV-2009 280696 Daily maximum of elevation, in ft (NGVD) 22-MAR-2001 24-NOV-2009 3038 Daily mean of specific conductance, in us/cm @ 25c 22-MAR-2001 24-NOV-2009 2810 Measured dissolved chloride content 30-OCT-2000 06-NOV-2009 127 Measured water-level elevation 30-OCT-2000 06-NOV-2009 134
![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.](../graphics/graphs/graph_01709.gif)
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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 G -2900 (260325080113901)
Description of information presented in the current 30-day hydrograph at G -2900 (260325080113901)
The change in daily water-level elevations has not been mathematically correlated to time for the period of record based on operational considerations. Instead of a long-term trend line, the data are, therefore, compared to the zero-slope (flat, linear) regression curve for the existing period of record daily water-level elevations. This approximates, but may not equal, the period of record mean. (Description of statistical methods)
![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.](../graphics/graphs/graph_01710.gif)
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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 G -2900 (260325080113901)
Description of information presented in the current 90-day hydrograph at G -2900 (260325080113901)
The change in daily water-level elevations has not been mathematically correlated to time for the period of record based on operational considerations. Instead of a long-term trend line, the data are, therefore, compared to the zero-slope (flat, linear) regression curve for the existing period of record daily water-level elevations. This approximates, but may not equal, the period of record mean. (Description of statistical methods)
![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.](../graphics/graphs/graph_01711.gif)
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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 G -2900 (260325080113901)
Description of information presented in the current year-to-date hydrograph at G -2900 (260325080113901)
The change in daily water-level elevations has not been mathematically correlated to time for the period of record based on operational considerations. Instead of a long-term trend line, the data are, therefore, compared to the zero-slope (flat, linear) regression curve for the existing period of record daily water-level elevations. This approximates, but may not equal, the period of record mean. (Description of statistical methods)
![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.](../graphics/graphs/graph_01712.gif)
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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 G -2900 (260325080113901)
Description of information presented in the one-year hydrograph at G -2900 (260325080113901)
The change in daily water-level elevations has not been mathematically correlated to time for the period of record based on operational considerations. Instead of a long-term trend line, the data are, therefore, compared to the zero-slope (flat, linear) regression curve for the existing period of record daily water-level elevations. This approximates, but may not equal, the period of record mean. (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.](../graphics/graphs/graph_01713.gif)
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Water-level elevations from the past 35 years.
Data used to produce the period of record hydrograph - past 35 years at G -2900 (USGS 260325080113901)
Description of information presented in the period of record hydrograph - past 35 years at G -2900 (USGS 260325080113901)
The change in daily water-level elevations has not been mathematically correlated to time for the period of record based on operational considerations. Instead of a long-term trend line, the data are, therefore, compared to the zero-slope (flat, linear) regression curve for the existing period of record daily water-level elevations. This approximates, but may not equal, the period of record mean. (Description of statistical methods)
![Graph: Sample chloride measurements available over the past 35 years. Vertical groups of chloride measurements represent results from chloride or specific conductance profile measurements.. Data used to produce this graph is available via the [data used] link on the page.](../graphics/graphs/graph_14530.gif)
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Sample chloride measurements available over the past 35 years. Vertical groups of chloride measurements represent results from chloride or specific conductance profile measurements.
Data used to produce the period of record chloride measurements - past 35 years G -2900 (260325080113901)
Description of information presented in the period of record chloride measurements - past 35 years G -2900 (260325080113901)
![Graph: Continuously recorded specific conductance levels for the past 90 days are compared to daily mean conductance 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 years 1995 (elevated rainfall) and 1989 (low rainfall), as available. Data used to produce this graph is available via the [data used] link on the page.](../graphics/graphs/graph_01714.gif)
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Continuously recorded specific conductance levels for the past 90 days are compared to daily mean conductance 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 years 1995 (elevated rainfall) and 1989 (low rainfall), as available.
Data used to produce the current 90-day halograph at G -2900 (260325080113901)
Description of information presented in the current 90-day halograph at G -2900 (260325080113901)
The change in daily water-level elevations has not been mathematically correlated to time for the period of record based on operational considerations. Instead of a long-term trend line, the data are, therefore, compared to the zero-slope (flat, linear) regression curve for the existing period of record daily water-level elevations. This approximates, but may not equal, the period of record mean. (Description of statistical methods)
![Graph: Daily mean specific conductance levels available over the past 25 years . Data used to produce this graph is available via the [data used] link on the page.](../graphics/graphs/graph_11231.gif)
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Daily mean specific conductance levels available over the past 25 years.
Data used to produce the period of record halograph - past 25 years G -2900 (260325080113901)
Description of information presented in the period of record halograph - past 25 years G -2900 (260325080113901)
The change in daily water-level elevations has not been mathematically correlated to time for the period of record based on operational considerations. Instead of a long-term trend line, the data are, therefore, compared to the zero-slope (flat, linear) regression curve for the existing period of record daily water-level elevations. This approximates, but may not equal, the period of record mean. (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?map=112bscnn&mapuse=A&sites=(260325080113901)&indicator=Y
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