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 261957081432202
LOCATION.-- Lat 26°19'57", long 81°43'22" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 SE 1/4 sec.32, T.47 S., R.26 E., Lee County, FL, Hydrologic Unit 03090204, 7 ft east of Faygin Lane, 500 ft north of Bonita Beach Road SE, 1.8 mi east of U.S. Interstate 75 and 3.5 mi east of Bonita Springs Post Office.
AQUIFER.-- Surficial aquifer of the Pleistocene Age, Geologic Unit 112 NRSD.
WELL CHARACTERISTICS.-- Depth 15 ft. Upper casing diameter 4 in.; top of first opening 14 ft, bottom of last opening 15 ft. Open hole 14 to 15 ft.
DATUM.-- Top of flange, 17.26 ft above National Geodetic Vertical Datum of 1929, Feb. 27, 1995, to present
PERIOD OF RECORD.-- August 1975 to February 1978 (monthly), February 1978 to current year.
REMARKS.-- Well resurveyed to current measuring point February 27, 1995 after repairs to L-2194 and L-2195. See DATUM.
EXTREMES FOR PERIOD OF RECORD.-- Highest daily maximum water level, 14.83 ft NGVD, July 1-3, 1992; lowest, 6.16 ft NGVD, June 16, 2001.
Online map showing USGS_261957081432202 (through Google Maps - not a USGS site) at (26.3328609,-81.7225876).
Daily values tables - HTML tables
Daily values tables - raw retrieval
Most recent monitoring data received at L -2195:
(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) 9.95 26-NOV-2009 11:00:00
Measured water level elevation 9.91 20-NOV-2009 11:42:00
Online data inventory for L -2195: Data type Start End Number of records Computed elevation, in ft (NGVD) 01-OCT-1996 25-NOV-2009 106892 Daily maximum elevation, in ft (NGVD) 03-OCT-1977 24-NOV-2009 11209 Measured dissolved chloride content 19-JAN-1982 23-APR-1993 28 Measured water-level elevation 29-OCT-1975 22-OCT-2009 137
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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 -2195 (261957081432202)
Description of information presented in the current 30-day hydrograph at L -2195 (261957081432202)
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 -0.055 ft/year. (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 -2195 (261957081432202)
Description of information presented in the current 90-day hydrograph at L -2195 (261957081432202)
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 -0.055 ft/year. (Description of statistical methods)
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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 L -2195 (261957081432202)
Description of information presented in the current year-to-date hydrograph at L -2195 (261957081432202)
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 -0.055 ft/year. (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 -2195 (261957081432202)
Description of information presented in the one-year hydrograph at L -2195 (261957081432202)
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 -0.055 ft/year. (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 -2195 (USGS 261957081432202)
Description of information presented in the period of record hydrograph - past 35 years at L -2195 (USGS 261957081432202)
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 -0.055 ft/year. (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 -2195 (261957081432202)
Description of information presented in the period of record chloride measurements - past 25 years L -2195 (261957081432202)
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.