A cooperative project with the Philadelphia Water Department
01474500 - Schuylkill River at Philadelphia, PA
NOTICE: With the exception of 01467200, 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 USGS.
T= Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +/ -2.5 degrees, formazin nephelometric units (FNU); L= Photosynthetically active radiation (average flux density on a horizontal surface during measurement interval), micromoles of photons per square meter per second ; WT= Temperature, water, degrees Celsius; K= Specific cond at 25C; pH= pH, water, unfiltered, field, standard units; DO= Dissolved oxygen; Q= Discharge; GH= Gage height; PPT= Precipitation
Lat 39`58'04", long 75`11'20", Philadelphia County, Hydrologic Unit 02040203, on right bank 150 ft upstream from Fairmount Dam, 1,500 ft upstream from bridge on Spring Garden Street in Philadelphia, and 8.7 mi upstream from mouth. Water-quality sampling s
Drainage Area:
1,893 mi2
Period of Record:
October 1931 to current year. Records for January 1898 to December 1912, published in WSP 35, 48, 65, 82, 97, 125, 166, 202, 214, 261, 301, and 381 have been found to be unreliable and should not be used.
Gage:
Water-stage recorder and concrete control. Datum of gage is 5.74 ft above sea level. Prior to Nov. 25, 1956, water-stage recorder at site on right bank just upstream from Fairmount Dam at same datum. Nov. 26, 1956, to Oct. 6, 1966, water-stage recorder at
