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[!] ICE EFFECTS ON STREAMFLOW -- During cold weather, stage and discharge values may be affected by ice at some streamgages. Streamgages experiencing ice conditions will have the discharge record temporarily disabled to prevent the display of erroneous discharge values. Display of discharge record will resume when it is determined that ice conditions are no longer present. Adjustment of data affected by ice can only be done after detailed analysis.

* IMPORTANT: Next Generation Station Page



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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. NITRATE + NITRITE: May 2018 to current year. DISSOLVED ORGANIC CARBON: May 2018 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 Downingtown Field Office.

Available Parameters Available Period
2007-10-01  2021-01-20
2007-10-01  2021-01-20
2007-10-01  2021-01-20
2016-06-29  2021-01-20
2007-10-01  2021-01-20
2020-11-04  2021-01-20
2018-05-31  2020-11-02
2018-05-31  2020-11-02


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

Temperature, water, degrees Celsius

Most recent instantaneous value: 4.0 01-20-2021   14:30 EST
Graph of  Temperature, water, degrees Celsius

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