Click
to
hide
Water-Year
Summary
instructions
and
information
- 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.
USGS Water-Year Summary 2024
01669000 PISCATAWAY CREEK NEAR TAPPAHANNOCK, VA
LOCATION - Lat 37°52'37", long 76°54'03" referenced to North American Datum of 1927, Essex County, VA, Hydrologic Unit 02080104, on right bank at upstream side of bridge on State Highway 691, 0.6 mi south of Hensley Fork, 2.3 mi downstream from Sturgeon Swamp, and 4.2 mi southwest of Tappahannock.
DRAINAGE AREA - 27.9 mi².
REVISIONS HISTORY - WDR VA-79-1: 1970-76(P), 1978(P). OFR 2006-1308: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 1951 to current year.
GAGE - Water-stage recorder. Datum of gage is -0.625 ± 0.1 ft above NAVD 88.
COOPERATION - Records were provided by the Virginia Department of Environmental Quality - Water Division.
REMARKS - Maximum discharge, 2,380 ft³/s, from rating curve extended above 1,400 ft³/s.
WATER-QUALITY RECORDS
PERIOD OF RECORD - October 2006 to September 2008.
PERIOD OF DAILY RECORD - February 2007 to September 2008.
COOPERATION - Daily records were provided by the Virginia Department of Environmental Quality - Water Division.
INSTRUMENTATION - Specific conductance and water temperature monitor. Electronic data logger with 15-minute recording interval.
EXTREMES FOR PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: Maximum, 152 microsiemens/cm, Aug. 21, 2007; minimum, 43 microsiemens/cm, May 20, June 2, 2008.
WATER TEMPERATURE: Maximum, 29.3°C, Aug. 8, 9, 2007; minimum, 0.0°C, Jan. 4, 21, 22, 2008.
SPECIFIC CONDUCTANCE: Maximum, 152 microsiemens/cm, Aug. 21, 2007; minimum, 43 microsiemens/cm, May 20, June 2, 2008.
WATER TEMPERATURE: Maximum, 29.3°C, Aug. 8, 9, 2007; minimum, 0.0°C, Jan. 4, 21, 22, 2008.
