LOCATION.--Lat 25°25'51", long 81°05'09", Monroe County, Hydrologic Unit 03090202, in Everglades National Park, approximately 300 ft upstream of the Harney River chickee on the left bank.

DRAINAGE AREA.--Indeterminate.

PERIOD OF RECORD.--

DISCHARGE: October 2003 to current year.
GAGE HEIGHT: October 2003 to current year.

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

REMARKS.--Records good. Daily values are not published for this site. Discharge and gage height 15 minute data are available in the files of the U.S. Geological Survey. Data can also be accessed online at http://sofia.usgs.gov/.

EXTREMES FOR PERIOD OF RECORD.--

DISCHARGE: Maximum positive discharge,10300 ft³/s Sept. 17, 2005; maximum negative, 10600 ft³/s Sept. 9, 2004.
GAGE HEIGHT: Maximum gage height, 1.64 ft Sept. 9, 2004; minimum, -3.89 ft Mar. 4, 2005.

EXTREMES FOR CURRENT YEAR.--

DISCHARGE: Maximum positive discharge,10300 ft³/s Sept. 17; maximum negative, 9890 ft³/s Sept. 17.
GAGE HEIGHT: Maximum gage height, 1.11 ft Sept. 17; minimum, -3.89 ft Mar. 4.

PERIOD OF RECORD.--

SALINITY (TOP AND BOTTOM): October 2003 to current year.
WATER TEMPERATURE (TOP AND BOTTOM): October 2003 to current year.

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

REMARKS.--Salinity (TOP) record rated good except for the following periods: Dec. 18-31, Jan. 1-28, rated fair. Salinity (BOTTOM) record rated good except for the period: Dec. 11-18, rated fair. Temperature (TOP AND BOTTOM) records rated good. During periods of missing record, values may be higher or lower than the listed extremes. Salinity and temperature 15 minute data, are available in the files of the U.S. Geological Survey. Data can also be accessed online at http://sofia.usgs.gov/.

EXTREMES FOR PERIOD OF RECORD.--

SALINITY (TOP): Maximum recorded, 35.9 ppt May 24, 2005; minimum recorded, 0.45 ppt Sept. 24, 2005.
SALINITY (BOTTOM): Maximum recorded, 35.7 ppt May 25, 26, 2005; minimum recorded, 0.46 Sept. 24, 2005.
WATER TEMPERATURE (TOP): Maximum recorded, 32.9°C Sept. 13, 2005; minimum recorded, 15.5°C Dec. 23, 2003.
WATER TEMPERATURE (BOTTOM): Maximum recorded, 32.9°C Sept. 13, 2005; minimum recorded, 15.6°C Dec. 23, 2003.

EXTREMES FOR CURRENT YEAR.--

SALINITY (TOP): Maximum recorded, 35.9 ppt May 24; minimum recorded, 0.45 ppt Sept. 24.
SALINITY (BOTTOM): Maximum recorded, 35.7 ppt May 25, 26; minimum recorded, 0.46 Sept. 24.
WATER TEMPERATURE (TOP): Maximum recorded, 32.9°C Sept. 13; minimum recorded, 15.6°C Jan. 26.
WATER TEMPERATURE (BOTTOM): Maximum recorded, 32.9°C Sept. 13; minimum recorded, 15.7°C Jan. 26.

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