--01474000 WISSAHICKON CREEK AT MOUTH,
--Lat 40`00'54", long
75`12'24", Philadelphia County, Hydrologic Unit 02040203, on
left bank 100 ft upstream from dam at Ridge Avenue, 750 ft upstream
from mouth, and 1,000 ft northwest of Gustine Lake in
--64.0 square miles.
PERIOD OF RECORD.
--June 1897 to September 1903,
January 1905 to July 1906, October 1965 to current year. Prior to
October 1965, records furnished by Department of Public Works, City of
Philadelphia. Records for 1971-74 published in WDR PA-81-1. Prior to
October 1965, published as "near Philadelphia".
--Water-stage recorder, water-quality monitor,
concrete control, and crest-stage gage. Datum of gage is 26.41 ft above
National Geodetic Vertical Datum of 1929. Prior to October 1965,
water-stage recorder at about same site and datum. Satellite telemetry
--Station established and maintained by
the U.S. Geological Survey. Funding for the operation of this station
is provided by the City of Philadelphia Water Department and the U.S.
Geological Survey through the Cooperative Water Program.
-- Real-time water-quality data at this
station are temporarily unavailable but will resume once technical
difficulties are resolved. Data are being recorded at the station and
stored for future availability.
Calibration of water-quality
instrumentation is conducted exclusively by Philadelphia Water
Department personnel with USGS oversight. Erroneous or missing data,
resulting from instrument malfunction, are not the responsibility of
GAGE HEIGHTS OF IMPORTANCE
Supplied by USGS
: Maximum recordable gage height
(stage sensor operational limit) - 12.6 ft; Data transmitter
operational limit - 13.3 ft;
Supplied by NWS
: No flood stage has been determined
for this station.