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Water-Year Summary for Site 02245340

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00010 Temperature, water(Min.,Max.,Mean)  
00065 Gage height(Mean)  
00095 Specific cond at 25C(Min.,Max.,Mean)  
00480 Salinity(Min.,Max.,Mean)  

Water year 2019: 2018-10-01 to 2019-09-30
 

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USGS Water-Year Summary 2019
02245340 ST JOHNS R BLW SHANDS BRIDGE NR GRN COVE SPRG, FL
LOCATION - Lat 30°00'21.32", long 81°36'54.49" referenced to North American Datum of 1983, St. Johns County, FL, Hydrologic Unit 03080103, 10000 Shands Pier Road, on left side of fishing pier at the end of Shands Pier, on the right bank of the St. Johns river, 4 mi east-northeast of Green Cove Springs, 1 mi downstream of Shands Bridge, and 49 mi upstream of mouth.  
DRAINAGE AREA -  
SURFACE-WATER RECORDS
PERIOD OF RECORD - June 2017 to current year.
GAGE - Water-stage recorder and data-collection platform. Datum of gage is at NAVD of 1988.
COOPERATION - This gage is monitored in cooperation with the U.S. Army Corps of Engineers.
REMARKS - Stage affected by tide.
EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 5.02 ft, Sept. 11, 2017; minimum, -1.20 ft, April 17 and 19, 2018.
WATER-QUALITY RECORDS
PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: June 2017 to current year.
SALINITY: June 2017 to current year.
WATER TEMPERATURE: June 2017 to current year. 

INSTRUMENTATION - Water-quality monitor and data-collection platform.
REMARKS - Extremes for current year and extremes for period of daily record are based on recorded values and may have been exceeded during periods of no record. June 2017 to current year; water temperature, specific conductance, and salinity published as daily maximum, minimum and mean. 
EXTREMES FOR PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: Maximum, 9,350 µS/cm @ 25°C, June 10, 2017; minimum, 371 µS/cm @ 25°C, Feb. 15, 2019.

SALINITY: Maximum, 5.2 ppt, June 9 and 10, 2017; minimum, 0.2 ppt, many days.

WATER TEMPERATURE: Maximum, 34.2°C, July 6, 2017; minimum, 8.5°C, Jan. 5, 2018.