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 270609080163401
LOCATION.-- Lat 27°06'10.3", long 80°16'36.3" referenced to North American Datum of 1983, in SE 1/4 SW 1/4 SE 1/4 sec.6, T.39 S., R.41 E., Martin County, FL, Hydrologic Unit 03090202, on SW Locks Road, approximately 0.5 mi west of State Road 76 and 1.1 mi west of U.S. Interstate 95.
AQUIFER.-- Surficial aquifer system, Geologic Unit 110 SAQS.
WELL CHARACTERISTICS.-- Depth 20 ft. Upper casing diameter 6 in.; top of first opening 16.8 ft, bottom of last opening 19.8 ft.
DATUM.-- Top of base, 18.54 ft above National Geodetic Vertical Datum of 1929, Jan. 28, 1993, to present
PERIOD OF RECORD.-- May 1989 to April 1992 (semiannual), January 1993 to current year.
EXTREMES FOR PERIOD OF RECORD.-- Highest daily maximum water level, 14.78 ft NGVD, Oct. 18, 1995; lowest, 5.31 ft NGVD, June 1, 2007.
Online map showing USGS_270609080163401 (through Google Maps - not a USGS site) at (27.1028614,-80.2767487).
Daily values tables - HTML tables
Daily values tables - raw retrieval
Most recent monitoring data received at M -1261:
(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) 9.27 26-NOV-2009 11:00:00
Online data inventory for M -1261: Data type Start End Number of records Computed elevation, in ft (NGVD) 11-JAN-1993 25-NOV-2009 133007 Daily maximum elevation, in ft (NGVD) 11-JAN-1993 24-NOV-2009 5862 Instantaneous water-level elevation 02-MAY-1989 03-OCT-1995 40
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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 M -1261 (270609080163401)
Description of information presented in the current 30-day hydrograph at M -1261 (270609080163401)
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 -0.102 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 M -1261 (270609080163401)
Description of information presented in the current 90-day hydrograph at M -1261 (270609080163401)
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 -0.102 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 M -1261 (270609080163401)
Description of information presented in the current year-to-date hydrograph at M -1261 (270609080163401)
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 -0.102 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 M -1261 (270609080163401)
Description of information presented in the one-year hydrograph at M -1261 (270609080163401)
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 -0.102 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 M -1261 (USGS 270609080163401)
Description of information presented in the period of record hydrograph - past 35 years at M -1261 (USGS 270609080163401)
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 -0.102 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.