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[!] During cold weather, ice effects on stage, groundwater levels, precipitation and water quality parameters at some stream-gaging stations and wells are likely. Data values reported on these pages may be significantly higher or lower than actual values. Adjustment of data for ice effects can only be done after detailed analysis. Users are encouraged to contact this office for more information on specific stream-gaging stations or wells.




USGS 01481500 BRANDYWINE CREEK AT WILMINGTON, DE

PROVISIONAL DATA SUBJECT TO REVISION

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LOCATION.--Lat 39°46'10.2", long 75°34'36.1", New Castle County, Hydrologic Unit 02040205,
   on left bank at upstream side of Rising Sun Bridge, in Wilmington, and 4.2 mi upstream from mouth.
DRAINAGE AREA.--314 mi2.
PERIOD OF RECORD.--October 1946 to current year.  Prior to December 1946 monthly discharge only,
   published in WSP 1302.
REVISED RECORDS.--WSP 1432:  1948, 1950; WDR-US-2011: 2007-2010.
GAGE.--Water-stage recorder and concrete control.  Datum of gage is 67.17 ft above North American 
   Vertical Datum of 1988.
REMARKS.--Some diurnal fluctuation at low flow caused by mills upstream from station. Flow regulated since
   November 1973 by Marsh Creek Reservoir (see station 01480684 Marsh Creek Lake nr. Downington, PA), capacity 
   7,230,000,000 gal, about 27 mi upstream. No diversion just upstream from station by plant of E. I. du Pont de Nemours & Co.
   since June l3, 1960. Gage relocated to left bank at upstream side of Rising Sun Bridge, October 2006 at same gage datum. 
   U.S. Geological Survey satellite data-collection platform at station. Water-quality records for some prior periods have been
   collected at this location.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 29,000 ft3/s, June 23, 1972, maximum gage height 15.49 ft, June 23, 1972
   (at old gage location downstream of mill dam, prior to regulation). Maximum gage height, 18.71 ft, August 28, 2011 (at current gage location);
   minimum discharge, 30 ft3/s,  Dec. 26, 1948.
COOPERATION.--Funding for the operation of this station is provided by the Delaware Geological Survey, the 
   City of Wilmington, and the  U.S. Geological Survey.
CRITICAL LEVELS.--Bankfull stage; 15.2 ft (5,375 ft3/s), flood stage; 16.5 ft (8,940 ft3/s), 
   information provided by the National Weather Service. 
Boating safety tips
This station managed by the MD-DE-DC Water Science Center, Dover office.

Available Parameters Available Period
All 7 Available Parameters for this site
  
00010 Temperature, water 2007-10-01  2014-11-22
00060 Discharge 2007-10-01  2014-11-22
00065 Gage height 2014-07-25  2014-11-22
00095 Specific cond at 25C 2007-10-01  2014-11-22
00400 pH 2007-10-01  2014-11-22
63680 Turbidity, Form Neph 2007-10-01  2014-11-22
00300 Dissolved oxygen 2007-10-01  2014-11-22

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


Temperature, water, degrees Celsius

Most recent instantaneous value: 1.6   11-22-2014  20:15 EST
Graph of  Temperature, water, degrees Celsius

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Discharge, cubic feet per second

Most recent instantaneous value: 217   11-22-2014  20:15 EST
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Daily discharge, cubic feet per second -- statistics for Nov 22 based on 41 years of record more
Min
(2002)
25th
percen-
tile
Most Recent
Instantaneous
Value Nov 22
Median Mean 75th
percen-
tile
Max
(2004)
106 199 217 263 358 528 866


Gage height, feet

Most recent instantaneous value: 11.85   11-22-2014  20:15 EST
Graph of  Gage height, feet

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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Most recent instantaneous value: 351   11-22-2014  20:15 EST
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pH, water, unfiltered, field, standard units

Most recent instantaneous value: 7.9   11-22-2014  20:15 EST
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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: 3.3   11-22-2014  20:15 EST
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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Dissolved oxygen, water, unfiltered, milligrams per liter

Most recent instantaneous value: 14.4   11-22-2014  20:15 EST
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