USGS Water-Year Summary for Site 02290829502

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	Available Parameters
	00010 Temperature, water(Mean)
	00095 Specific cond at 25C(Mean)
	00480 Salinity(Mean)
	62611 Elevation, GW, NAVD88(Max.)

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

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USGS Water-Year Summary 2023

02290829502 MO -199. USGS Observation Well near Florida City, FL

Biscayne aquifer
Biscayne Limestone Aquifer

LOCATION - Lat 25°28'04.72", long 80°51'16.30" referenced to North American Datum of 1983, Miami-Dade County, FL, Hydrologic Unit 03090202, approximately 21 mi north of Flamingo in Shark Slough of Everglades National Park.

REVISIONS HISTORY - WDR-US-2010, site 02290829502; 2009 water year revised dates for minimum recorded specific conductance.

GROUNDWATER RECORDS

WELL CHARACTERISTICS - Depth 10.1 ft. Upper casing diameter 2 in; top of first opening undefined, bottom of last opening undefined.

DATUM - Land-surface datum is 1 ft above North American Vertical Datum of 1988. Measuring point: Top of casing, distance above land-surface datum not defined, Oct. 2003 to present.

PERIOD OF RECORD - Water levels, salinity, specific conductance, water temperature, October 2003 to September 2011 (daily), October 2011 to current year (discrete measurements).

GAGE - Quarterly water-level measurement with chalked tape. Satellite data collection platform with pressure transducer, specific conductivity, and water temperature probe until December 2011, when equipment was removed, October 1, 2011, discrete water level and water quality sampling implemented. See REMARKS.

REMARKS - Water level, specific conductance and water temperature records are available in the files of the U.S. Geological Survey. Water level, specific conductance, salinity and water temperature 15 minute data can also be accessed online at http://sofia.usgs.gov/. Daily values are available online at http://waterdata.usgs.gov/nwis. Discrete water temperature, specific conductance, and salinity monitoring started in 2012 water year. Discrete measurements are available online at http://waterdata.usgs.gov/, (See Field/Lab-water-quality samples and Field groundwater-level measurements).

EXTREMES FOR PERIOD OF RECORD - WATER-LEVEL ELEVATION: Highest daily maximum water level, 1.83 ft NAVD, Sept. 22, 2005; lowest, 1.15 ft below NAVD, Apr. 28, 2009. WATER-LEVEL ELEVATION: Highest water level measured, 1.59 ft NAVD, Oct. 9, 2008; lowest, 0.82 ft below NAVD, Apr. 30, 2004.

WATER-QUALITY RECORDS

WELL CHARACTERISTICS - Depth 10.1 ft. Upper casing diameter 2 in; top of first opening undefined, bottom of last opening undefined.

DATUM - Land-surface datum is 1 ft above North American Vertical Datum of 1988. Measuring point: Top of casing, distance above land-surface datum not defined, Oct. 2003 to present.

INSTRUMENTATION - Quarterly discrete water quality sampling.

EXTREMES FOR PERIOD OF RECORD - SALINITY: Maximum recorded, 0.8 ppt, May 16,18-20,2008; lowest,0.5 ppt, multiple days in 2004, 2007, 2009, 2010, and 2011. SALINITY: Maximum measured salinity, 0.7 ppt, June 4, 2012; lowest, 0.6 ppt, Mar. 15, 2012, Aug. 30, 2012. SPECIFIC CONDUCTANCE: Maximum recorded, 1,710 uS/cm @25°C, May 18, 2008; lowest, 1,050 uS/cm @25°C, Jan. 30 to Apr. 1, 2011. SPECIFIC CONDUCTANCE: Highest measured specific conductance, 1,260 uS/cm @25°C, Aug. 30, 2012; lowest, 1,240 uS/cm @25°C, Mar. 15, 2012, June 4, 2012. WATER TEMPERATURE: Maximum recorded, 27.3°C, Oct. 26-31, 2003 and Nov. 1, 2003; lowest, 22.7°C, Mar. 6, 2010. WATER TEMPERATURE: Highest measured temperature, 26.4°C, Aug. 30, 2012; lowest, 23.8°C, Mar. 15, 2012.