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 - 556, USGS ID: 263845081260702 [NWIS]

Site information from 2007 Data Report:

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)                     15.26              26-NOV-2009 11:00:00
Measured water level elevation                       16.32              29-OCT-2009 09:45:00

Online data inventory for HE - 556:

Data type                                            Start         End          Number of records
Computed elevation, in ft (NGVD)                     01-OCT-1996    25-NOV-2009       108398
Daily maximum elevation, in ft (NGVD)                02-JAN-1976    24-NOV-2009        11543
Measured dissolved chloride content                  18-OCT-1975    12-JUL-2000           28
Measured water-level elevation                       26-JAN-1975    29-OCT-2009          229

Water-level data collected in the past 30 years at HE - 556 (Save as text file)

Chloride measurements collected in the past 30 years at HE - 556 (Save as text file)

Navigational links:

Website

Station data page

Current 30-day hydrograph at HE - 556 (263845081260702)

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 - 556 (263845081260702)

Description of information presented in the current 30-day hydrograph at HE - 556 (263845081260702)

Long-term trend information

The change in daily water-level elevations correlates with time to a 95-percent degree of confidence for the past 35 years of record. A linear regression has been performed against the daily maximum water-level elevations for the past 35 years to quantify a long-term trend in the data. The estimated long-term trend in water level is -0.115 ft/year. (Description of statistical methods)

Current 90-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.

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)

Long-term trend information

Current year-to-date 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.

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)

Long-term trend information

One-year 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.

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)

Long-term trend information

Period of record hydrograph - past 35 years at HE - 556 (USGS 263845081260702)

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)

Long-term trend information

Period of record chloride measurements - past 25 years HE - 556 (263845081260702)

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 - 556 (263845081260702)

Description of information presented in the period of record chloride measurements - past 25 years HE - 556 (263845081260702)