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* IMPORTANT: Next Generation Station Page

USGS 02236125 ST. JOHNS RIVER AT ASTOR, FL

PROVISIONAL DATA SUBJECT TO REVISION

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This gage is monitored in cooperation with the St. Johns River Water Management District.

Link to the St. Johns River Water Management District.
Data are tidally affected -- Astronomical tides cause significant cycles of approximately 24.84 hours at this site. Because a different portion of the 24.84-hour tidal cycle is averaged in successive daily (24-hour) computations, a systematic secondary oscillation, unrelated to basin hydrology and having a period of about two weeks may be apparent in daily data.

REMARKS.--Computed discharge at this station may differ from individual measurements because of changes in tidal influence, wind, or other factors.

Available Parameters Available Period
All 8 Available Parameters for this site
   
00010 Temperature, water 2007-12-13  2016-09-30
00060 Discharge 1995-10-01  2019-07-15
00065 Gage height 2007-10-01  2019-07-15
00095 Specific cond at 25C 2007-12-13  2016-09-30
00300 Dissolved oxygen 2008-07-11  2016-09-30
63160 Stream level, NAVD 2010-10-01  2019-07-15
63680 Turbidity, Form Neph 2008-07-11  2015-09-30
72137 Discharge,tide fltrd 2007-10-01  2019-07-09

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Summary of all available data for this site
Instantaneous-data availability statement

Discharge, cubic feet per second
Most recent instantaneous value: 3830 07-15-2019   21:30 EDT
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Daily discharge, cubic feet per second -- statistics for Jul 15 based on 24 water years of record more
Min
(1998)		 25th
percen-
tile		 Median Mean 75th
percen-
tile		 Most Recent
Instantaneous
Value Jul 15		 Max
(2018)
625 1740 2620 3050 3770 3830 9440

Gage height, feet
Most recent instantaneous value: 1.08 07-15-2019   21:30 EDT
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Stream water level elevation above NAVD 1988, in feet
Most recent instantaneous value: -0.03 07-15-2019   21:30 EDT
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Discharge, tidally filtered, cubic feet per second
Most recent instantaneous value: 3440 07-09-2019   04:00 EDT
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