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* IMPORTANT: Next Generation Station Page

USGS 01589035 PATAPSCO RIVER NEAR ELKRIDGE, MD

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION.--Lat 39°13'38.4", long 76°43'22.8", 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.
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.--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 Feb. 26, 1953, for municipal supply of Baltimore, and beginning February 1970 for a 
   small municipal supply for part of Carroll County. Turbidity values that are determined to be a result 
   of debris on the sensor; a function of incident sun angle; or other phenomena that do not appear to be 
   correlated to suspended-sediment concentration are removed by the hydrographer. U.S. Geological Survey
   satellite data-collection platform at station until August 14, 2018. U.S. Geological Survey gage-height
   telemeter at station, August 14, 2018 to current year.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 26,900 ft³/s, May 27, 2018, gage height, 24.76 ft;
   minimum discharge, 35.0 ft³/s, Sept. 16, 17, 2012. 
COOPERATION.--Funding for the operation of this station is provided by American Rivers, the National 
   Oceanic and Atmospheric Administration, and the U.S. Geological Survey.
This station managed by the MD-DE-DC Water Science Center Baltimore office.

Available Parameters Available Period
All 3 Available Parameters for this site
  
00060 Discharge 2010-10-09  2019-08-22
00065 Gage height 2010-10-08  2019-08-22
63680 Turbidity, Form Neph 2010-10-29  2019-08-22

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Summary of all available data for this site
Instantaneous-data availability statement


Discharge, cubic feet per second

Most recent instantaneous value: 110 08-22-2019   11:05 EDT
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Daily discharge, cubic feet per second -- statistics for Aug 22 based on 8 water years of record more
Min
(2017)
25th
percen-
tile
Median 75th
percen-
tile
Most Recent
Instantaneous
Value Aug 22
Mean Max
(2018)
58.4 65 70 92 110 390 2610


Gage height, feet

Most recent instantaneous value: 5.83 08-22-2019   11:05 EDT
Graph of  Gage height, feet

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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)

Most recent instantaneous value: 0.3 08-22-2019   11:05 EDT
Graph of  Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)

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