Trend-compensated Overview of USGS Real-time Water-level Monitoring, Stations in Hendry County

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

HE - 861, USGS ID: 261735080534001 [NWIS]

Site information from 2007 Data Report:

USGS STATION NUMBER.-- USGS 261735080534001

LOCATION.-- Lat 26°18'09", long 80°53'35" referenced to North American Datum of 1927, in NW 1/4 NE 1/4 NW 1/4 sec.24, T.48 S., R.34 E., Hendry County, FL, Hydrologic Unit 03090202, 35 ft south of County Road 833, 0.75 mi west of the Broward County line and 5.2 mi east of the Big Cypress Forest Office.

AQUIFER.-- Tamiami formation, limestone aquifer of the Pliocene Age, Geologic Unit 121 TMIM.

WELL CHARACTERISTICS.-- Depth 70 ft. Upper casing diameter 4 in.; top of first opening 37 ft, bottom of last opening 70 ft.

DATUM.-- Top of shelf, 17.96 ft above National Geodetic Vertical Datum of 1929, Jan. 24, 1994, to present

PERIOD OF RECORD.-- September 1977 to November 1977 (monthly), December 1977 to September 1983 (daily), November 1985 to September 1994 (monthly), October 1994 to July 1995 (quarterly), May 2001 to current year.

REMARKS.-- Measuring point elevations prior to October 1988 are based on a land-surface elevation estimated from a topographic map. The figures of water level as elevation, in feet NGVD, prior to September 1987 are in error. A -0.58 ft correction is required to correct the water-level data. See DATUM. Records of water levels prior to October 1985 are available in files of the U.S. Geological Survey. Station reconstructed January 25, 1994.

EXTREMES FOR PERIOD OF RECORD.-- Highest daily maximum water level, 15.75 ft NGVD, Aug. 24, 25, 1978 (present datum); lowest, 6.94 ft NGVD, May 31, 1981 (present datum).

Online map showing USGS_261735080534001 (through Google Maps - not a USGS site) at (26.3028584,-80.8928452).

Daily values tables - HTML tables

Daily values tables - raw retrieval

Most recent monitoring data received at  HE - 861: 
    (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)                     10.49              26-NOV-2009 11:00:00
Measured water level elevation                       10.9               26-OCT-2009 15:34:00

Online data inventory for HE - 861:

Data type                                            Start         End          Number of records
Computed elevation, in ft (NGVD)                     09-MAY-2001    25-NOV-2009        71503
Daily maximum elevation, in ft (NGVD)                01-JAN-1978    24-NOV-2009         4575
Measured dissolved chloride content                  25-FEB-1978    22-APR-1993           17
Measured specific conductance                        25-FEB-1978    22-APR-1993           17
Measured water-level elevation                       04-NOV-1985    26-OCT-2009          126

Water-level data collected in the past 30 years at HE - 861 (Save as text file)

Chloride measurements collected in the past 30 years at HE - 861 (Save as text file)

Navigational links:

Website

Station data page

Current 30-day hydrograph at HE - 861 (261735080534001)

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 HE - 861 (261735080534001)

Description of information presented in the current 30-day hydrograph at HE - 861 (261735080534001)

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 HE - 861 (261735080534001)

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 HE - 861 (261735080534001)

Description of information presented in the current 90-day hydrograph at HE - 861 (261735080534001)

Long-term trend information

Current year-to-date hydrograph at HE - 861 (261735080534001)

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 HE - 861 (261735080534001)

Description of information presented in the current year-to-date hydrograph at HE - 861 (261735080534001)

Long-term trend information

One-year hydrograph at HE - 861 (261735080534001)

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.

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 - 861 (261735080534001)

Description of information presented in the one-year hydrograph at HE - 861 (261735080534001)

Long-term trend information

Period of record hydrograph - past 35 years at HE - 861 (USGS 261735080534001)

Water-level elevations from the past 35 years.

Data used to produce the period of record hydrograph - past 35 years at HE - 861 (USGS 261735080534001)

Description of information presented in the period of record hydrograph - past 35 years at HE - 861 (USGS 261735080534001)

Long-term trend information

Period of record chloride measurements - past 25 years HE - 861 (261735080534001)

Sample chloride measurements available over the past 25 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 25 years HE - 861 (261735080534001)

Description of information presented in the period of record chloride measurements - past 25 years HE - 861 (261735080534001)