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 252918080234201
LOCATION.-- Lat 25°29'19.75", long 80°23'40.45" referenced to North American Datum of 1983, in NW 1/4 SW 1/4 NW 1/4 sec.12, T.57 S., R.39 E., Miami-Dade County, FL, Hydrologic Unit 03090202, on Homestead Air Force Base, 3.0 mi southeast of U.S. Highway 1.
AQUIFER.-- Biscayne limestone aquifer of the Pleistocene Age, Geologic Unit 112 BSCNN.
WELL CHARACTERISTICS.-- Depth 47 ft. Upper casing diameter 9 in.; top of first opening undefined, bottom of last opening undefined.
DATUM.-- Top of base, 8.06 ft above National Geodetic Vertical Datum of 1929, Mar. 26, 2001, to present
PERIOD OF RECORD.-- October 1961 to current year.
REMARKS.-- Well also used for salinity monitoring since May 1965. Salinity monitoring discontinued during the 2005 water year. A tipping bucket rain gage was installed on April 26, 2001 and removed in April 2003. Records of water levels prior to October 1973, are available in files of the U.S. Geological Survey. Station was reconstructed October 3, 1962, March 12, 1963, March 10, 1993 and March 26, 2001. See DATUM.
EXTREMES FOR PERIOD OF RECORD.-- Highest daily maximum water level, 6.38 ft NGVD, Aug. 26, 2005; lowest, 0.83 ft below NGVD, May 12, 1971 and May 18, 2002.
Online map showing USGS_252918080234201 (through Google Maps - not a USGS site) at (25.4888191,-80.3945694).
Daily values tables - HTML tables
Daily values tables - raw retrieval
Most recent monitoring data received at G -1183:
(Recorded within last 60 days of site monitoring or during site visit within past 180 days.)
Data type Value Date Time
Computed elevation DCP, in ft (NGVD) 1.75 21-NOV-2009 17:00:00
Online data inventory for G -1183: Data type Start End Number of records Computed elevation DCP, in ft (NGVD) 13-OCT-1992 20-NOV-2009 198856 Daily maximum elevation DCP, in ft (NGVD) 01-OCT-1973 19-NOV-2009 12729 Measured dissolved chloride content 23-OCT-1967 21-JAN-2005 300 Measured specific conductance 23-APR-1975 21-JAN-2005 281 Measured water-level elevation 28-OCT-1975 21-JAN-2005 192
D
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 -1183 (252918080234201)
Description of information presented in the current 30-day hydrograph at G -1183 (252918080234201)
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 0.004 ft/year. (Description of statistical methods)
D
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 -1183 (252918080234201)
Description of information presented in the current 90-day hydrograph at G -1183 (252918080234201)
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 0.004 ft/year. (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 G -1183 (252918080234201)
Description of information presented in the current year-to-date hydrograph at G -1183 (252918080234201)
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 0.004 ft/year. (Description of statistical methods)
D
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 G -1183 (252918080234201)
Description of information presented in the one-year hydrograph at G -1183 (252918080234201)
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 0.004 ft/year. (Description of statistical methods)
D
Water-level elevations from the past 35 years.
Data used to produce the period of record hydrograph - past 35 years at G -1183 (USGS 252918080234201)
Description of information presented in the period of record hydrograph - past 35 years at G -1183 (USGS 252918080234201)
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 0.004 ft/year. (Description of statistical methods)
D
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 -1183 (252918080234201)
Description of information presented in the period of record chloride measurements - past 35 years G -1183 (252918080234201)
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.