USGS Water-Year Summary for Site 254543080405401

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean) [TOTAL DISCHARGE MEAN]
	00065 Gage height(Mean)
	00065 Gage height(Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	32295 fDOM, water, in situ(Mean)
	63160 Stream level, NAVD88(Mean)
	63160 Stream level, NAVD88(Mean)
	63680 Turbidity, Form Neph(Min.,Mean,Max.)

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

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USGS Water-Year Summary 2023

254543080405401 TAMIAMI CANAL AT S-12-D, NEAR MIAMI, FL

LOCATION - Lat 25°45'43", long 80°40'54" referenced to North American Datum of 1927, in T.54 S., R.36 E., Miami-Dade County, FL, Hydrologic Unit 03090202, on south bank 100 ft southwest of structure 12-D, near east boundary of Indian Reservation on U.S. Highway 41. No section could be determined from existing maps.

DRAINAGE AREA - Indeterminate.

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1963 to September 1965, October 1975 to September 1977, October 1978 to September 1979, October 1980 to September 1981 (discharge only), October 1981 to current year. See REMARKS.

GAGE - Satellite data collection platform with water-stage shaft encoders for upstream and downstream stages. After October 1, 2003, tipping bucket rain gage maintained by the U.S. Army Corps of Engineers. After October 1, 2003, rainfall record is no longer available in the files of the U.S. Geological Survey. Datum of gage is National Geodetic Vertical Datum of 1929 and 1.522 ft below North American Vertical Datum of 1988(NAVD 88). From October 1, 2008 to October 26, 2010, the upstream gage may be at a datum as much as 0.03 ft lower.

COOPERATION - U.S. Army Corps of Engineers, USGS Greater Everglades Priority Ecosystems Science, and National Park Service. Gate-opening records provided by the U.S. Army Corps of Engineers.

REMARKS - Station is one of several located downstream from the control structures in Levee 29 at Tamiami Canal. Gage records are primarily used to determine discharge through control structure 12-D. Discharge is the total discharge through the S-12-D structure from Conservation Area 3A. The daily discharge computed from relations between discharge, head, and gate openings when flow is controlled by gates and computed by relation between stage and discharge under uncontrolled conditions. Discharge and stage record for missing periods were fragmentary or missing from the files of the U.S. Geological Survey. Since October 1, 1989, satellite data collection platform. Rainfall data is available in files of the U.S. Geological Survey. The rainfall record was discontinued September 30, 2003. Upstream gage height records were formerly published under 254543080405400. Upstream gage height records have been relocated under 254543080405401 as "Published upstream" record in the files of the U.S. Geological Survey. October 1963 through September 1985, S12-D discharge was not published separately but is available in the NWIS database. The S-12-D discharge was part of the combined flow (S12 A,B, C, D) published under 02289040 TAMIAMI C OUTLETS L67A TO 40 MI BND NR MIAMI, FL for the water years 1963 through 2005. Some records are fragmentary because they were stored based upon records available in the files of the USGS. Starting 1986 water year the individual discharge for S12-D was published separately under 254543080405401.

EXTREMES FOR PERIOD OF RECORD - UPSTREAM STAGE: Maximum gage height, 11.99 ft Dec. 21, 1994; minimum, 5.16 ft June 19, 1989. DOWNSTREAM STAGE: Maximum gage height, 11.94 ft Dec. 21, 1994; minimum, 4.70 ft June 20, 1989.

WATER-QUALITY RECORDS

PERIOD OF RECORD - SPECIFIC CONDUCTANCE: September 2012 to April 2017. WATER TEMPERATURE: September 2012 to April 2017. TURBIDITY: September 2012 to April 2017. CDOM FLUORESCENCE: September 2012 to April 2017. Discontinued.

INSTRUMENTATION - Water-quality monitor.

REMARKS - Specific conductance, water temperature, and turbidity sensors located at 4.7 ft NGVD 29. During periods of missing record, values may be higher or lower than the listed extremes. 15 minute data are available in files of the U.S. Geological Survey. Daily values are available online at http://waterdata.usgs.gov/nwis. Water quality monitoring discontinued April 2017.

EXTREMES FOR PERIOD OF RECORD - SPECIFIC CONDUCTANCE: Maximum recorded, 916 uS/cm @ 25°C Sept. 22, 2015; minimum, 260 uS/cm @ 25°C June 27, 2013. WATER TEMPERATURE: Maximum recorded, 32.4 °C Aug. 25, 2015 and July 30, 2016; minimum, 15.9 °C Jan. 25, 2016. TURBIDITY: Maximum recorded, 87 FNU Dec. 10, 2014; minimum, 0.0 FNU on many days throughout the 2013 water year. CDOM FLUORESCENCE: Maximum recorded 610 QSE, Aug. 1, 2014; minimum 79.9 Feb. 12, 2014.