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Water-Year Summary for Site 01589035

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  • 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.
Available Parameters
00060 Discharge(Mean)  
63680 Turbidity, Form Neph(Min.,Max.,Mean)  
80154 Suspnd sedmnt conc(Mean)  
80155 Suspnd sedmnt disch(Mean)  

Water year 2019: 2019-10-01 to 2020-09-30
 

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USGS Water-Year Summary 2019
01589035 PATAPSCO RIVER NEAR ELKRIDGE, MD
LOCATION - Lat 39°13'38.4", long 76°43'22.8" referenced to North American Datum of 1983, Baltimore County, MD, Hydrologic Unit 02060003, on left bank 50 ft upstream from bridge on Gun Road, in Patapsco Valley State Park, 0.9 mi northwest of Elkridge, 1.3 mi southwest of Halethorpe, and 4.5 mi east of Columbia.
DRAINAGE AREA - 312 mi². from automated delineation using 30-meter National Elevation Dataset, digital elevation model data, dated 2006.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 2010 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 8.50 ft above North American Vertical Datum of 1988.
REMARKS -
  • Water Years 2017-2018: Records fair, except those for estimated discharges, which are poor.
  • Water Years 2015-2016: Records fair, except those for estimated daily discharges, which are poor.
  • Water Year 2014: Records good, except those for estimated daily discharges, which are poor.
  • Water Year 2013 and prior years’ accuracy statements can be found in Annual Water Data Reports.

  • Flow regulated by Liberty Reservoir, approximately 21 mi upstream, beginning July 22, 1954, usable capacity, 42,070,000,000 gal; dead storage, 1,260,000,000 gal. Diversions upstream from station for municipal supply of Westminster (sewage effluent discharged into Little Pipe Creek), and from Liberty Reservoir beginning February 26, 1953, for municipal supply of Baltimore, and beginning February 1970 for a small municipal supply for part of Carroll County. U.S. Geological Survey satellite data-collection platform at station until August 14, 2018. U.S. Geological Survey water-data telemeter at station, August 14, 2018 to current year.
    WATER-QUALITY RECORDS
    PERIOD OF RECORD - October 2010 to current year.
    PERIOD OF DAILY RECORD - TURBIDITY: October 2010 to current year. SEDIMENT CONCENTRATION: October 2010 to current year. SEDIMENT LOAD: October 2010 to current year.
    INSTRUMENTATION - Water-quality monitor and automatic sampler, October 2010 to current year.
    REMARKS - Sediment discharge loads and concentrations were estimated for days of estimated daily discharges. Turbidity values greater than 1,600 nephelometric turbidity units (NTU) exceed the instrument calibration range. Values are included in the record but are presumed to have lower precision. Turbidity values that were determined to be a result of debris on the sensor, a function of incident sun angle, or other phenomena that did not appear to be correlated to suspended-sediment concentration were removed by the hydrographer. Extended periods of missing data are due to equipment malfunctions.
    EXTREMES FOR PERIOD OF DAILY RECORD - TURBIDITY: Maximum 2,070 NTU, September 30, 2015; minimum 0.0 NTU, on several days. SEDIMENT CONCENTRATION: Maximum daily mean, 2,170 mg/L, January 31, 2013; minimum daily mean, 0.1 mg/L, September 14, 2015. SEDIMENT LOAD: Maximum daily 55,400 tons, January 31, 2013; minimum daily 0.00 tons, September 14, 2015.