USGS Real-time Water-level Monitoring, Stations in Broward County

All data presented on this site are considered to be PROVISIONAL DATA and subject to revision pending further review.

G -2900, USGS ID: 260325080113901 [NWIS]

Site information from 2007 Data Report:

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

Water-level data collected in the past 30 years at G -2900 (Save as text file)

Chloride measurements collected in the past 30 years at G -2900 (Save as text file)

Navigational links:

Website

Station data page

Current 30-day hydrograph at G -2900 (260325080113901)

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.

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)

Long-term trend information

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)

Current 90-day hydrograph at G -2900 (260325080113901)

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.

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)

Long-term trend information

Current year-to-date hydrograph at G -2900 (260325080113901)

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.

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)

Long-term trend information

One-year hydrograph at G -2900 (260325080113901)

Graph: Water-level elevations for the past year are compared to the duration information, or population statistics, for the corresponding weeks of the year.. Data used to produce this graph is available via the [data used] link on the page.

Water-level elevations for the past year are compared to the duration information, or population statistics, 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)

Long-term trend information

Period of record hydrograph - past 35 years at G -2900 (USGS 260325080113901)

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)

Long-term trend information

Period of record chloride measurements - past 35 years G -2900 (260325080113901)

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)

Current 90-day halograph at 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.

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)

Long-term trend information

Period of record halograph - past 25 years G -2900 (260325080113901)

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)