Important Legacy real-time page
Available data
Select data types to graph from categories based on the way the data were collected.
Learn about the data collection categories Continuous data
9 data types available - data from 1990-10-01 to 2026-09-22
Daily data
6 data types available - data from 1965-10-01 to 2026-09-21
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
390 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 2026-09-21
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.
Monitoring locations with continuous data in last 120 days
No locations found
