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DESCRIPTION:

Latitude 39°50'12",   Longitude 75°22'00"   NAD27

Delaware County, Pennsylvania, Hydrologic Unit 02040202

Drainage area: 10,300.00 square miles

Contributing drainage area: 10,300.00 square miles,

Datum of gage: 0.00 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2007-10-01	2025-11-19
Daily Data
Temperature, water, degrees Celsius	1961-12-21	2025-11-18	51021
Temperature, water, degrees Fahrenheit	1963-10-02	1967-09-29	3235
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1963-10-01	2025-11-18	51100
Dissolved oxygen, water, unfiltered, milligrams per liter	1961-12-27	2025-11-18	47115
pH, water, unfiltered, field, standard units	1968-01-18	2025-11-18	47451
Daily Statistics
Temperature, water, degrees Celsius	1964-10-16	2025-06-25	16139
Temperature, water, degrees Fahrenheit	1964-10-16	1967-09-29	825
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1964-10-01	2024-06-13	16141
Dissolved oxygen, water, unfiltered, milligrams per liter	1964-10-03	2025-06-25	15003
pH, water, unfiltered, field, standard units	1968-01-19	2012-12-02	10813
Monthly Statistics
Temperature, water, degrees Celsius	1964-10	2025-06
Temperature, water, degrees Fahrenheit	1964-10	1967-09
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1964-10	2024-06
Dissolved oxygen, water, unfiltered, milligrams per liter	1964-10	2025-06
pH, water, unfiltered, field, standard units	1968-01	2012-12
Annual Statistics
Temperature, water, degrees Celsius	1965	2025
Temperature, water, degrees Fahrenheit	1965	1967
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1965	2024
Dissolved oxygen, water, unfiltered, milligrams per liter	1965	2025
pH, water, unfiltered, field, standard units	1968	2013
Peak streamflow	1972-12-22	1992-12-11	12
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1966-12-12	2020-10-20	752
Water-Year Summary	2006	2024	19
Revisions	Loading...

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