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**NOTICE: The New Jersey Water Science Center has transitioned to a new data management software package. While you may not have noticed this transition, some sites may have problems or delays in being updated. We are actively monitoring these conditions and are resolving them as quickly as possible. See the Dec 8 news entry for more information at: https://help.waterdata.usgs.gov/news


ALL DATA ARE AT LOCAL TIME



USGS 01477050 Delaware River at Chester, PA

PROVISIONAL DATA SUBJECT TO REVISION

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STATION.--01477050 DELAWARE RIVER AT CHESTER, PA
LOCATION.--Lat 39`50'44", long 75`21'03", referenced to North American Datum of 1983, Delaware County, Hydrologic Unit 02040202, at Kimberly-Clark Paper Company at Chester, 0.5 mi downstream from Ridley Creek.
DRAINAGE AREA.--10,300 square miles.
PERIOD OF RECORD.--December 1961 to current year. SPECIFIC CONDUCTANCE: October 1963 to current year. pH: January 1968 to current year. WATER TEMPERATURE: December 1961 to current year. DISSOLVED OXYGEN: December 1961 to current year.
GAGE.--Water-quality monitor since December 1961. Probes interfaced with a data collection platform since 1986.
COOPERATION.--Funding for the operation of this station is provided by the Delaware River Basin Commission and the U.S. Geological Survey.
REMARKS.--Prior to April 1981 sampling site located at auxiliary tidal-gaging station at the end of Reynolds Aluminum Company pier, 0.5 mi downstream from Chester Creek in Chester (latitude 39`50'12", longitude 75`22'00"); prior to April 2016, located at pumphouse on Kimberly Clark property, 400 ft upstream from Chester Creek. Data collection discontinued during winter months. Other interruptions in the record were due to malfunctions of the instrumentation.
This station managed by the PAWSC Exton Field Office.

Available Parameters Available Period
All 5 Available Parameters for this site
  
00010 Temperature, water 2007-10-01  2017-09-22
00095 Specific cond at 25C 2007-10-01  2017-09-22
00300 Dissolved oxygen 2007-10-01  2017-09-22
00301 Diss oxygen,%saturtn 2016-06-29  2017-09-22
00400 pH 2007-10-01  2017-09-22

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Temperature, water, degrees Celsius

Most recent instantaneous value: 23.5 09-22-2017   18:30 EDT
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Most recent instantaneous value: 414 09-22-2017   18:30 EDT
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Dissolved oxygen, water, unfiltered, milligrams per liter

Most recent instantaneous value: 6.3 09-22-2017   18:30 EDT
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Dissolved oxygen, water, unfiltered, percent of saturation

Most recent instantaneous value: 74 09-22-2017   18:30 EDT
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pH, water, unfiltered, field, standard units

Most recent instantaneous value: 7.2 09-22-2017   18:30 EDT
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