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 254210080304801
LOCATION.-- Lat 25°42'10", long 80°30'48" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 sec.34, T.54 S., R.38 E., Miami-Dade County, FL, Hydrologic Unit 03090202, 4.02 mi south of U.S. Highway 41 (Tamiami Trail) and 1.01 mi west of levee on west side of L-31N Canal.
AQUIFER.-- Biscayne limestone aquifer of the Pleistocene Age, Geologic Unit 112 BSCNN.
WELL CHARACTERISTICS.-- Depth 6. ft. Upper casing diameter 4 in.; top of first opening 6 ft, bottom of last opening 6 ft. Open-end well.
DATUM.-- Top of shelf, 8.94 ft above National Geodetic Vertical Datum of 1929, Mar. 9, 1995, to present
PERIOD OF RECORD.-- March 1995 to current year.
EXTREMES FOR PERIOD OF RECORD.-- Highest daily maximum water level, 8.39 ft NGVD, Oct. 18, 1999: lowest, 3.55 ft NGVD, May 22, 2001.
Online map showing USGS_254210080304801 (through Google Maps - not a USGS site) at (25.7031574,-80.5131149).
Daily values tables - HTML tables
Daily values tables - raw retrieval
Most recent monitoring data received at G -3578:
(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) 6.61 23-NOV-2009 18:00:00
Online data inventory for G -3578: Data type Start End Number of records Computed elevation ADR/DCP, in ft (NGVD) 09-MAR-1995 23-NOV-2009 124963 Daily maximum elevation ADR/DCP, in ft (NGVD) 10-MAR-1995 22-NOV-2009 5161
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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 G -3578 (254210080304801)
Description of information presented in the current 30-day hydrograph at G -3578 (254210080304801)
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 -0.061 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 -3578 (254210080304801)
Description of information presented in the current 90-day hydrograph at G -3578 (254210080304801)
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 -0.061 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 -3578 (254210080304801)
Description of information presented in the current year-to-date hydrograph at G -3578 (254210080304801)
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 -0.061 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 -3578 (254210080304801)
Description of information presented in the one-year hydrograph at G -3578 (254210080304801)
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 -0.061 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 -3578 (USGS 254210080304801)
Description of information presented in the period of record hydrograph - past 35 years at G -3578 (USGS 254210080304801)
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 -0.061 ft/year. (Description of statistical methods)
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.