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 263532081592201
LOCATION.-- Lat 26°35'33.2", long 81°59'20.6" referenced to North American Datum of 1983, in NW 1/4 NW 1/4 sec.2, T.45 S., R.23 E., Lee County, FL, Hydrologic Unit 03090205, 0.1 mi east of intersection of Skyline Boulevard and Gleason Parkway, in median of Gleason Parkway and 3.5 mi northwest of Cape Coral Post Office.
AQUIFER.-- Mid-Hawthorn aquifer of the Miocene Age, Geologic Unit 122 HTRNN.
WELL CHARACTERISTICS.-- Drilled, observation, artesian well, diameter 8 in., depth 177 ft.
DATUM.-- Top of shelf, 12.98 ft above National Geodetic Vertical Datum of 1929, May 1966 to present
PERIOD OF RECORD.-- May 1966 to current year.
REMARKS.-- Water levels affected by pumping of nearby wells. Records of water levels prior to October 1973 are available in files of the U.S. Geological Survey.
EXTREMES FOR PERIOD OF RECORD.-- Highest daily maximum water level, 4.77 ft below NGVD, Sept. 10, 1960; lowest, 72.73 ft below NGVD, June 3, 2004.
Online map showing USGS_263532081592201 (through Google Maps - not a USGS site) at (26.5925560,-81.9890518).
Daily values tables - HTML tables
Daily values tables - raw retrieval
Most recent monitoring data received at L - 581:
(Recorded within last 60 days of site monitoring or during site visit within past 180 days.)
Data type Value Date Time
Computed elevation ADR/DCP, in ft (NGVD) -23.95 26-NOV-2009 11:00:00
Measured water level elevation -27.31 19-OCT-2009 08:51:00
Online data inventory for L - 581: Data type Start End Number of records Computed elevation ADR/DCP, in ft (NGVD) 15-NOV-1996 25-NOV-2009 107071 Daily maximum elevation ADR/DCP, in ft (NGVD) 01-OCT-1973 24-NOV-2009 12867 Measured dissolved chloride content 25-APR-1978 26-JUN-2000 35 Measured water-level elevation 02-NOV-1983 19-OCT-2009 106
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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 L - 581 (263532081592201)
Description of information presented in the current 30-day hydrograph at L - 581 (263532081592201)
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)
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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 L - 581 (263532081592201)
Description of information presented in the current 90-day hydrograph at L - 581 (263532081592201)
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)
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 L - 581 (263532081592201)
Description of information presented in the current year-to-date hydrograph at L - 581 (263532081592201)
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)
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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 L - 581 (263532081592201)
Description of information presented in the one-year hydrograph at L - 581 (263532081592201)
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)
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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 L - 581 (USGS 263532081592201)
Description of information presented in the period of record hydrograph - past 35 years at L - 581 (USGS 263532081592201)
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)
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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 L - 581 (263532081592201)
Description of information presented in the period of record chloride measurements - past 25 years L - 581 (263532081592201)
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.