STATION.--01467200 DELAWARE RIVER AT BENJAMIN
FRANKLIN BRIDGE, AT PHILADELPHIA, PA LOCATION.--Lat 39`57'14", long
75`08'16", Philadelphia County, Hydrologic Unit 02040202, on
right bank at river end of pier 12, 150 ft upstream from Ben Franklin
bridge, and at Philadelphia. DRAINAGE AREA.--7,993 square miles. PERIOD OF RECORD.--August 1949 to current year.
SPECIFIC CONDUCTANCE: November 1963 to current year. pH: October 1967
to current year. WATER TEMPERATURE: November 1960 to current year.
DISSOLVED OXYGEN: October 1961 to current year. CHLOROPHYLLS: January
2017 to current year. GAGE.--Water-quality monitor interfaced with a data
collection platform. COOPERATION.--Funding for the operation of this
station is provided by the Delaware River Basin Commission, City of
Philadelphia, Water Department and the U.S. Geological Survey. REMARKS.--Prior to July 1988, located on edge of pier
11 about 300 ft downstream of pier 12. Further information on this
station is given in U.S. Geological Survey Water-Supply Paper 1809-0.
Data collection discontinued during
winter months. Other interruptions in the record were
due to malfunctions of the pump or recording instrument.
This station managed by the PAWSC Downingtown Field Office.