USGS Water-Year Summary for Site 251341080291200

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	Available Parameters
	00060 Discharge(Mean)
	00065 Gage height(Max.,Min.)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

251341080291200 STILLWATER CREEK NEAR HOMESTEAD, FL

LOCATION - Lat 25°13'41.88", long 80°29'09.41" referenced to North American Datum of 1927, in T.60 S., R.38 E., Miami-Dade County, FL, Hydrologic Unit 03090202, located on the left bank near the mouth, 8 mi northwest of Key Largo.

DRAINAGE AREA -
Indeterminate.

REVISIONS HISTORY - WDR-US-2009, site 251341080291200: WDR FL-06-2A, WDR-US-2007, WDR-US-2008, site 251341080291200; maximum negative discharge for the extremes period of record.

SURFACE-WATER RECORDS

PERIOD OF RECORD - April 1999 to September 1999 (gage heights only); October 1999 to current year.

GAGE - Satellite data collection platform with water-stage shaft encoder and acoustic Doppler velocity meter. Datum of gage North American Vertical Datum of 1988 (NAVD 88).

REMARKS - Daily mean discharge is not published. The discharge for this station is more affected by wind than astronomical tides. Discharge at wind-driven sites may require a different filter (subtidal) than the Godin low-pass filter. Mean monthly discharge tables for the period of record are published. Mean monthly discharge tables only include months with a complete record of daily mean discharges. Discharge and gage height records are available in the files of the U.S. Geological Survey. Discharge and gage height 15 minute data and mean monthly discharge data can also be accessed online at http://sofia.usgs.gov/. Daily values of gage height are available online at http://waterdata.usgs.gov/nwis.

EXTREMES FOR PERIOD OF RECORD - DISCHARGE: Maximum positive discharge, 200 ft³/s June 22, 2005; maximum negative, 211 ft³/s Oct. 24, 2005. GAGE HEIGHT: Maximum gage height, 2.38 ft Oct. 24, 2005(estimated); minimum, -1.84 ft Jan. 24, 2003.

WATER-QUALITY RECORDS

PERIOD OF RECORD - SALINITY (TOP): April 1999 to May 2007. Discontinued. SALINITY (BOTTOM): May 2001 to September 2011. Discontinued. SPECIFIC CONDUCTANCE (BOTTOM) OCTOBER 2009 TO September 2011. Discontinued. WATER TEMPERATURE (TOP): April 1999 to May 2007. Discontinued. WATER TEMPERATURE: (BOTTOM): May 2001 to September 2011. Discontinued.

INSTRUMENTATION - Water-quality monitor with top and bottom sensors.

REMARKS - Prior to Sept. 15, 2010 salinity was computed directly from specific conductance using a conversion within the continuous water quality monitor. From Sept. 15, 2010 to Sept. 30, 2011, salinity is computed from corrected specific conductance data using a rating in the NWIS database. Salinity and water temperature records are available in files of the U.S. Geological Survey. Salinity and water temperature 15 minute data can also be accessed online at http://sofia.usgs.gov/. Daily values of salinity and water temperature are available online at http://waterdata.usgs.gov/nwis.

EXTREMES FOR PERIOD OF RECORD - SALINITY (TOP): Maximum recorded, 44.7 ppt June 2, 2005; minimum recorded, 0.5 ppt Oct. 5, 2000. SALINITY (BOTTOM): Maximum recorded, 45.0 ppt June 2, 2005; minimum recorded, 0.6 ppt Sept. 18, 2002, July 2, 3, 2003, Sept. 29, 30, 2005, Oct. 1, 2, 2005. SPECIFIC CONDUCTANCE (BOTTOM): Maximum recorded, 64,300 uS/cm @ 25°C June 27, 2011; minimum recorded, 1,500 uS/cm @ 25°C Oct. 1, 2010. WATER TEMPERATURE (TOP): Maximum recorded, 35.8°C Aug. 10, 2005; minimum recorded, 11.8°C Jan. 1, 2001. WATER TEMPERATURE (BOTTOM): Maximum recorded, 36.4°C July 21, 2010; minimum recorded, 6.1°C Jan. 11, 2010.