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Available data

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Continuous data

9 data types available - data from 1990-10-01 to 2026-10-13

Daily data

6 data types available - data from 1965-10-01 to 2026-10-12

Field measurements

2 data types available - data from 1965-10-12 to 2026-07-07

Discrete sample data

347 Observed properties (data types) available - data from 1959-10-23 to 2026-07-13

391 Sampling activities

Peak measurements

2 data types available - data from 1966-02-13 to 2023-05-01

Statistical tables for select daily data types

5 data types available - data from 1965-10-01 to 2026-10-11

Important information about this monitoring location

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. Possible pumping from quarry 6 miles upstream. Possible diversions for irrigation. The continuous water-quality monitor operated by the Philadelphia Water Department is located at Lat 40`01'21.5", Long 75`11`53.8", approximately 3,800 feet upstream of gage.

Location details and information

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Operated in cooperation with:

City of Philadelphia Water Department

USGS - Cooperative Matching Funds

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	01474000	n/a
Location name	Wissahickon Creek at Mouth, Philadelphia, PA	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	40.01529031497649	n/a
Decimal longitude (WGS84)	-75.20683431900966	n/a
Latitude-longitude method	Interpolated from MAP.	M
Latitude-longitude accuracy	Accurate to + or - 1 sec.	S
District	Pennsylvania	42
State	Pennsylvania	42
County	Philadelphia County	101
Country	United States of America	n/a
Altitude of gage/land surface	25.27 feet	n/a
Method altitude determined	Level or other surveyed method.	L
Altitude accuracy	0.01 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Schuylkill	02040203
Drainage basin		n/a
Date of first construction		n/a
Drainage area	64 square miles	n/a
Contributing drainage area		n/a
Time zone abbreviation	EST	n/a
Site honors Daylight Saving Time	Y	n/a
National aquifer		n/a
Local aquifer		n/a
Local aquifer type		n/a
Well depth		n/a
Hole depth		n/a
Source of depth data		n/a

Monitoring location Wissahickon Creek at Mouth, Philadelphia, PA - USGS-01474000