STATION.--01475510 Darby Creek near Darby, PA
LOCATION.--Lat 39°55'44", Long 75°16'22", referenced to North American Datum of 1927 Delaware County, Hydrologic Unit 02040202, on left bank, 5 ft upstream from bridge on West Providence Rd, 2.3 mi upstream from Cobbs Creek, 8.4 mi above mouth.
DRAINAGE AREA.--37.4 square miles.
PERIOD OF RECORD.--Discharge: February 1964 to September 1990, and November 2018 to current year. Specific Conductance: October 2019 to current year. Water Temperature: July 2000 to September 2000, and November 2018 to current year.
GAGE.--Water-stage recorder, crest-stage gage, concrete control, and water-temperature sensor. Datum of gage is 18.1 ft above North American Vertical Datum of 1988 (NAVD88), from GPS survey. Prior to March 10, 2022, the datum was erroneously reported as 18.9 ft above NAVD88 and 19.41 ft above National Geodetic Vertical Datum of 1929.
COOPERATION.--Station established and maintained by the U.S. Geological Survey. Funding for the operation of this station is provided by the U.S. Geological Survey -- Next Generation Water Observing System (NGWOS).
REMARKS.--