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.
Site information from NWIS:
LOCATION.-- Lat 28° 48' 42", long 81° 53' 30", in SW 1/4 NE 1/4 NE 1/4, sec. 27, T.19 S., R.24 E., in Lake County, near Leesburg, FL. Hydrologic Unit 03080102.
AQUIFER.-- Floridan aquifer of the Oligocene Age, Geologic Unit 120FLRD.
WELL CHARACTERISTICS.-- Drilled, observation well, diameter 12 in., depth 245 ft, cased to 90 ft.
INSTRUMENTATION.-- Satellite data collection platform.
DATUM.-- Measuring point: Edge of flange, 94.3 ft above National Geodetic Vertical Datum of 1929.
LAND-SURFACE DATUM.-- Land surface is approximately 93 ft above NGVD.
REMARKS.-- Operated by USGS Office in Orlando, FL.
Online map showing USGS_284842081533001 (through Google Maps - not a USGS site) at (28.8119335,-81.8914719).
Daily values tables - HTML tables
Daily values tables - raw retrieval
Most recent monitoring data received at College Street:
(Recorded within last 60 days of site monitoring or during site visit within past 180 days.)
Data type Value Date Time
Computed water level elevation 65.06 26-NOV-2009 11:30:00
Online data inventory for College Street: Data type Start End Number of records Computed water-level elevation 28-APR-1987 25-NOV-2009 396237 Daily maximum water-level elevation 12-SEP-1973 24-NOV-2009 21437
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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 College Street (284842081533001)
Description of information presented in the current 30-day hydrograph at College Street (284842081533001)
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
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 College Street (284842081533001)
Description of information presented in the current 90-day hydrograph at College Street (284842081533001)
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 College Street (284842081533001)
Description of information presented in the current year-to-date hydrograph at College Street (284842081533001)
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
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 College Street (284842081533001)
Description of information presented in the one-year hydrograph at College Street (284842081533001)
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 College Street Well at Leesburg, FL (USGS 284842081533001)
Description of information presented in the period of record hydrograph - past 35 years at College Street Well at Leesburg, FL (USGS 284842081533001)
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)
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.